HEADPHONES · YOUR NEXT FACE-OFF

Sennheiser ACCENTUM True Wireless vs Sennheiser HD 800 S

Real specs. Clear sources.Exact models · UK & US buying links

Compared products

YOUR FIRST CHOICE

Sennheiser ACCENTUM True Wireless

700262 · Black · UK/US

Full product profile Official image

Exact model & source notes

ACCENTUM True Wireless in Black (article 700262 on the UK and US stores) uses 7 mm TrueResponse dynamic drivers, hybrid ANC and Bluetooth 5.3 with LC3. Its case supports USB-C and Qi charging; Auracast is advertised with a firmware-update condition.

Specifications checked 26 Sept 2026.

Amazon links open search results. Check the exact variant, current price and availability with the retailer.

Manufacturer specifications

WHICH SUITS YOU?

Choose the ACCENTUM True Wireless for

A wireless connection

Choose the HD 800 S for

A wired connection

Built from verified specifications that differ. Not a rating or a recommendation.

See the 6 verified differences

THE CONTENDER

Sennheiser HD 800 S

Black · HD 800 S · 506911

Full product profile Official image

Exact model & source notes

The HD 800 S is an open-back, over-ear headphone built around a 56 mm ring-radiator driver with an acoustic absorber. It is rated 4–51,000 Hz (−10 dB) at 300 ohms and ships with detachable 3 m cables in both 6.35 mm unbalanced and 4.4 mm balanced form.

Specifications checked 11 Sept 2026.

Amazon links open search results. Check the exact variant, current price and availability with the retailer.

Manufacturer specifications

ACCENTUM True Wireless UK & US retailers

UK & US price history: no verified listing yet

HD 800 S UK & US retailers

UK & US price history: no verified listing yet

Search links open retailer results, not a matched listing; eBay listings are checked daily. As an Amazon Associate I earn from qualifying purchases. As an eBay Partner, we may be compensated if you make a purchase.

THE DIFFERENCES, MADE VISIBLE

Visual facts

Differences first. Select a topic for its graphic, sources and conditions.

How to read this comparison

Manufacturer facts for the exact models shown. Not a quality rating or a test result.
“Different” means the known values differ, not that one is better.
Missing or conflicting evidence is marked and never counts as a difference. Source chips hold each fact’s sources and conditions.

FEATURES SIDE BY SIDE6 topics

Yes and No describe the listed feature. Missing evidence stays unverified.

SELECTED TOPIC

01 / 06

Open-back design

Open-back earcups are not sealed. Start here if your listening space is quiet; this construction is not a sound-quality rating.

Sennheiser ACCENTUM True WirelessNot verified

Sennheiser HD 800 SYes

Open-back. Manufacturer specification

Source 1

Choose your must-haves

Start with your listening environment. Open and closed earcups suit different surroundings. A closed back is not the same as active noise cancellation. Check the exact cable and headphone output. We do not turn impedance, driver size or unpaired lab results into a sound-quality score.

WHAT CHANGES BETWEEN THEM?

Key differences

Full specifications ↓

6 verified differences, most decision-relevant first. Missing information stays separate.

Wired / wireless connections

Sennheiser ACCENTUM True WirelessBluetooth 5.3 (class 1; Bluetooth Classic and Bluetooth LE), with A2DP, AVRCP, HFP, TMAP and PBP profiles and SBC, AAC, aptX and LC3 codecs

Sennheiser HD 800 SWired analogue; detachable 6.35 mm unbalanced and 4.4 mm balanced cables

Sources

Sennheiser ACCENTUM True Wireless

Manufacturer specification · Auracast is advertised with the condition “available via firmware update only”. The pages do not identify the required firmware version or establish multipoint support. Charging is represented separately.

Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications

Sennheiser HD 800 S

Manufacturer specification · The XLR-4 cable is an optional accessory. The manual describes using a standard 3.5 mm adapter, but its inclusion or exclusion is not explicitly established by the reviewed package list.

Sennheiser HD 800 S — manufacturer specifications Sennheiser HD 800 S — current instruction manual

Check the exact configuration and source conditions for your use.

Drivers

Sennheiser ACCENTUM True Wireless7 mm TrueResponse dynamic driver per earbud

Sennheiser HD 800 S56 mm dynamic ring radiator; 40 mm voice coil; angled drivers, acoustic absorber, vibration-damping chassis and headband insert

Sources

Sennheiser ACCENTUM True Wireless

Manufacturer specification

Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications

Sennheiser HD 800 S

Manufacturer specification · The driver, diaphragm and voice-coil sizes describe different parts.

Sennheiser HD 800 S — manufacturer specifications Sennheiser HD 800 S — current instruction manual

Check whether the diameter describes the complete transducer or only its diaphragm. Different labels and driver sizes do not establish better sound.

Wearing style

Sennheiser ACCENTUM True WirelessIn-ear, true wireless (ear-canal coupling)

Sennheiser HD 800 SOver-ear (circumaural), open-back dynamic headphones

Sources

Sennheiser ACCENTUM True Wireless

Manufacturer specification · Two separate earbuds with a charging case; ear tips in XS/S/M/L are supplied.

Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications

Sennheiser HD 800 S

Manufacturer specification

Sennheiser HD 800 S — manufacturer specifications

Check the exact configuration and source conditions for your use.

Total harmonic distortion

Sennheiser ACCENTUM True Wireless<0.08% (1 kHz / 94 dB)

Sennheiser HD 800 S≤0.02% at 1 kHz, 1 V rms

Sources

Sennheiser ACCENTUM True Wireless

Manufacturer specification · Sennheiser prints '<0,08% (1 kHz / 94 dB)' (decimal comma).

Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications

Sennheiser HD 800 S

Manufacturer specification

Sennheiser HD 800 S — manufacturer specifications Sennheiser HD 800 S — current instruction manual

These published limits can use different input voltages, loudness levels and standards. They cannot establish lower distortion in matched listening conditions.

Frequency response

Sennheiser ACCENTUM True Wireless5 Hz to 21 kHz

Sennheiser HD 800 S10–44,100 Hz (−3 dB); 4–51,000 Hz (−10 dB)

Sources

Sennheiser ACCENTUM True Wireless

Manufacturer specification

Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications

Sennheiser HD 800 S

Manufacturer specification · The manual gives both thresholds; the UK page lists only the wider range.

Sennheiser HD 800 S — manufacturer specifications Sennheiser HD 800 S — current instruction manual

Range endpoints need their stated threshold. They do not describe response flatness or prove better bass, detail or sound quality.

Sound pressure level

Sennheiser ACCENTUM True Wireless107 dB SPL (1 kHz / 1 mW)

Sennheiser HD 800 S102 dB SPL at 1 kHz, 1 V rms

Sources

Sennheiser ACCENTUM True Wireless

Manufacturer specification · Speaker sensitivity as listed by Sennheiser; impedance is listed as not applicable (active Bluetooth headphones).

Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications

Sennheiser HD 800 S

Manufacturer specification · Rated at 1 kHz with 1 V rms; not directly comparable with dB/mW ratings.

Sennheiser HD 800 S — current instruction manual

Keep the frequency and voltage or power reference attached. Sensitivity describes output for an input, not sound quality; dB/V and dB/mW are different measures.

Missing or non-comparable evidence (33)

Acoustic design

Sennheiser ACCENTUM True WirelessNot verified

Sennheiser HD 800 SOpen-back

Sources

Sennheiser ACCENTUM True Wireless

No source recorded for this side.

Sennheiser HD 800 S

Manufacturer specification

Sennheiser HD 800 S — manufacturer specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Active noise cancellation

Sennheiser ACCENTUM True WirelessYes

Sennheiser HD 800 SNot verified

Sources

Sennheiser ACCENTUM True Wireless

Manufacturer specification · Hybrid ANC with a Transparency Mode.

Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications

Sennheiser HD 800 S

The reviewed exact manufacturer sources establish open-back dynamic construction but do not explicitly state whether active noise cancellation is present or absent. Acoustic mesh, an absorber or an omitted ANC control does not establish ANC=false. · Manufacturer specification

Sennheiser HD 800 S — manufacturer specifications Sennheiser HD 800 S — current instruction manual Sennheiser HD 800 S — manufacturer specification table

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Microphone

In Visual facts

Sennheiser ACCENTUM True WirelessYes

Sennheiser HD 800 SNot verified

Sources

Sennheiser ACCENTUM True Wireless

Manufacturer specification · Two MEMS microphones per earbud with beamforming for noise reduction; microphone frequency range 100 Hz to 10 kHz.

Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications

Sennheiser HD 800 S

The reviewed exact manufacturer sources do not explicitly establish microphone presence or absence for the supplied configuration. Stereo audio conductors and omitted controls are not proof that no microphone exists. · Manufacturer specification

Sennheiser HD 800 S — manufacturer specifications Sennheiser HD 800 S — current instruction manual Sennheiser HD 800 S — manufacturer specification table

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Battery life

Sennheiser ACCENTUM True WirelessEarbuds: up to 8 hours music playtime with ANC off, up to 6 hours with ANC on. With the charging case: up to 28 hours overall music playtime. 10 minutes of charging gives 1 hour; a full charge takes about 1.5 hours.

Sennheiser HD 800 SNot verified

Sources

Sennheiser ACCENTUM True Wireless

Manufacturer specification · Sennheiser's test condition: iPhone, mid volume level 85 dB. The 28-hour case figure is not split by ANC state. Built-in lithium-ion batteries: 55 mAh per earbud, 400–420 mAh case.

Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications

Sennheiser HD 800 S

The reviewed exact manufacturer sources do not explicitly give battery life or state that no battery is required for operation. A wired analogue connection is known; the generic disposal wording “battery/rechargeable battery (if applicable)” establishes neither presence nor absence. · Manufacturer specification

Sennheiser HD 800 S — manufacturer specifications Sennheiser HD 800 S — current instruction manual Sennheiser HD 800 S — manufacturer specification table

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Nominal impedance

Sennheiser ACCENTUM True WirelessNot verified

Sennheiser HD 800 S300 ohm

Sources

Sennheiser ACCENTUM True Wireless

No source recorded for this side.

Sennheiser HD 800 S

Manufacturer specification · Nominal impedance; check that your amplifier or audio source can drive this load.

Sennheiser HD 800 S — manufacturer specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Companion app

Sennheiser ACCENTUM True WirelessSennheiser Smart Control app (5-band EQ, presets, Soundcheck); the page also promotes the Sennheiser Smart Control Plus app (built-in EQ, sound modes, Sound Personalization)

Sennheiser HD 800 SNot verified

Sources

Sennheiser ACCENTUM True Wireless

Manufacturer specification · The specification table's 'App support' lists only the Sennheiser Smart Control app for iOS and Android, while the same page's 'Smart Control Plus App' section recommends the Sennheiser Smart Control Plus app. Sennheiser does not say which app features differ for this model; both names are recorded.

Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications

Sennheiser HD 800 S

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Auracast broadcast-audio support

Sennheiser ACCENTUM True WirelessYes

Sennheiser HD 800 SNot verified

Sources

Sennheiser ACCENTUM True Wireless

Manufacturer specification · Manufacturer condition: available via firmware update only. Required firmware version and installed update status were not established; do not present it as unconditional on every unit.

Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications

Sennheiser HD 800 S

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Earbud and case battery capacities

Sennheiser ACCENTUM True Wireless55 mAh per earbud; 400–420 mAh case

Sennheiser HD 800 SNot verified

Sources

Sennheiser ACCENTUM True Wireless

Manufacturer specification · Manufacturer component capacities, not combined capacity or measured runtime.

Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications

Sennheiser HD 800 S

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Included and optional cables

Sennheiser ACCENTUM True WirelessNot verified

Sennheiser HD 800 SDetachable 3 m unbalanced and balanced cables included; XLR-4 cable optional

Sources

Sennheiser ACCENTUM True Wireless

No source recorded for this side.

Sennheiser HD 800 S

Manufacturer specification · Optional cables are sold separately; balanced cables need a balanced headphone output.

Sennheiser HD 800 S — manufacturer specifications Sennheiser HD 800 S — current instruction manual

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Included cable length

Sennheiser ACCENTUM True WirelessNot verified

Sennheiser HD 800 S3 m

Sources

Sennheiser ACCENTUM True Wireless

No source recorded for this side.

Sennheiser HD 800 S

Manufacturer specification · Length of the supplied cable.

Sennheiser HD 800 S — manufacturer specifications Sennheiser HD 800 S — current instruction manual

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Manufacturer charging-time claim

Sennheiser ACCENTUM True WirelessApprox. 1.5 hours for a full charge; 10 minutes of charging gives 1 hour of music playtime

Sennheiser HD 800 SNot verified

Sources

Sennheiser ACCENTUM True Wireless

Manufacturer specification · The row does not explicitly name a component, charge path, codec or ANC mode. Ambient temperatures below 15°C or above 30°C and Qi wireless charging extend charging time.

Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications

Sennheiser HD 800 S

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Case charging connector

Sennheiser ACCENTUM True WirelessUSB Type-C

Sennheiser HD 800 SNot verified

Sources

Sennheiser ACCENTUM True Wireless

Manufacturer specification · Manufacturer charging connection; this does not establish USB audio or cable data operation.

Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications

Sennheiser HD 800 S

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Supplied plug configuration

Sennheiser ACCENTUM True WirelessNot verified

Sennheiser HD 800 S6.35 mm unbalanced cable and 4.4 mm balanced cable

Sources

Sennheiser ACCENTUM True Wireless

No source recorded for this side.

Sennheiser HD 800 S

Manufacturer specification · Needs a matching headphone output; the 4.4 mm balanced cable needs a balanced output.

Sennheiser HD 800 S — manufacturer specifications Sennheiser HD 800 S — current instruction manual

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Rated contact pressure

Sennheiser ACCENTUM True WirelessNot verified

Sennheiser HD 800 SApproximately 3.4 N ±0.3 N

Sources

Sennheiser ACCENTUM True Wireless

No source recorded for this side.

Sennheiser HD 800 S

Manufacturer specification · Nominal clamping force; individual fit and comfort can differ.

Sennheiser HD 800 S — current instruction manual

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Earbud controls

Sennheiser ACCENTUM True WirelessCustomizable touch interface for audio playback, calls and voice assistant

Sennheiser HD 800 SNot verified

Sources

Sennheiser ACCENTUM True Wireless

Manufacturer specification

Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications

Sennheiser HD 800 S

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Driver diameter

Sennheiser ACCENTUM True WirelessNot verified

Sennheiser HD 800 S56 mm

Sources

Sennheiser ACCENTUM True Wireless

No source recorded for this side.

Sennheiser HD 800 S

Manufacturer specification · Ring-radiator transducer diameter.

Sennheiser HD 800 S — manufacturer specifications Sennheiser HD 800 S — current instruction manual

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Ear pads

Sennheiser ACCENTUM True WirelessNot verified

Sennheiser HD 800 SMicrofibre ear pads; replaceable

Sources

Sennheiser ACCENTUM True Wireless

No source recorded for this side.

Sennheiser HD 800 S

Manufacturer specification · Replacement procedure shown in the manual.

Sennheiser HD 800 S — manufacturer specifications Sennheiser HD 800 S — current instruction manual

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Frequency equalisation

Sennheiser ACCENTUM True WirelessNot verified

Sennheiser HD 800 SDiffuse-field equalised

Sources

Sennheiser ACCENTUM True Wireless

No source recorded for this side.

Sennheiser HD 800 S

Manufacturer specification

Sennheiser HD 800 S — current instruction manual

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Supplied 3.5 mm adapter

Sennheiser ACCENTUM True WirelessNot verified

Sennheiser HD 800 SNot verified

Sources

Sennheiser ACCENTUM True Wireless

No source recorded for this side.

Sennheiser HD 800 S

The manual describes using a standard 3.5 mm adapter but does not explicitly say it is supplied or not supplied. It is absent from the reviewed package list; that omission is not a definitive exclusion. · Manufacturer specification

Sennheiser HD 800 S — manufacturer specifications Sennheiser HD 800 S — current instruction manual

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Rated long-term input power

Sennheiser ACCENTUM True WirelessNot verified

Sennheiser HD 800 SMaximum 500 mW under EN 60-268-7

Sources

Sennheiser ACCENTUM True Wireless

No source recorded for this side.

Sennheiser HD 800 S

Manufacturer specification · Maximum input the headphones can handle, not the amplifier power they need.

Sennheiser HD 800 S — current instruction manual

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Static magnetic field at the surface

Sennheiser ACCENTUM True WirelessNot verified

Sennheiser HD 800 S10.5 mT

Sources

Sennheiser ACCENTUM True Wireless

No source recorded for this side.

Sennheiser HD 800 S

Manufacturer specification · Static magnetic field at the headphone surface.

Sennheiser HD 800 S — manufacturer specifications Sennheiser HD 800 S — current instruction manual

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Bluetooth multipoint

Sennheiser ACCENTUM True WirelessNot verified

Sennheiser HD 800 SNot verified

Sources

Sennheiser ACCENTUM True Wireless

The complete reviewed exact model pages do not explicitly establish multipoint presence or absence. · Manufacturer specification

Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications

Sennheiser HD 800 S

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Operating temperature

Sennheiser ACCENTUM True WirelessNot verified

Sennheiser HD 800 S−10 °C to +55 °C

Sources

Sennheiser ACCENTUM True Wireless

No source recorded for this side.

Sennheiser HD 800 S

Manufacturer specification · Storage −20 °C to +70 °C; relative humidity 10–80% operating and 10–90% storage, non-condensing.

Sennheiser HD 800 S — current instruction manual

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Replaceable parts

Sennheiser ACCENTUM True WirelessNot verified

Sennheiser HD 800 SDetachable cables; replaceable ear pads, headband padding and washable 3D-mesh dust covers

Sources

Sennheiser ACCENTUM True Wireless

No source recorded for this side.

Sennheiser HD 800 S

Manufacturer specification · Replacement procedures are in the manual; spare-part availability varies.

Sennheiser HD 800 S — current instruction manual

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Published earbuds and case total weight

Sennheiser ACCENTUM True Wireless52 g

Sennheiser HD 800 SNot verified

Sources

Sennheiser ACCENTUM True Wireless

Manufacturer specification · Manufacturer states 52 g for both earbuds and case; do not confuse this with 5.5 g single-earbud mass.

Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications

Sennheiser HD 800 S

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Manufacturer spatial audio

Sennheiser ACCENTUM True WirelessNot verified

Sennheiser HD 800 SNot verified

Sources

Sennheiser ACCENTUM True Wireless

The complete reviewed ACCENTUM pages do not explicitly establish spatial-audio presence or absence. Absence from its feature inventory is not false. · Manufacturer specification

Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications

Sennheiser HD 800 S

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

USB Power Delivery charging

Sennheiser ACCENTUM True WirelessNot verified

Sennheiser HD 800 SNot verified

Sources

Sennheiser ACCENTUM True Wireless

The power row lists 5 V / 1000 mA and USB-C, but does not explicitly establish Power Delivery support or absence. Connector shape and an omitted PD label do not mean false. · Manufacturer specification

Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications

Sennheiser HD 800 S

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

User-replaceable earbud and case batteries

Sennheiser ACCENTUM True WirelessNot verified

Sennheiser HD 800 SNot verified

Sources

Sennheiser ACCENTUM True Wireless

The tables call the batteries built-in but do not explicitly establish whether owners can replace them. Built-in and omitted repair instructions do not mean non-replaceable. · Manufacturer specification

Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications

Sennheiser HD 800 S

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Dust, sweat and water resistance

Sennheiser ACCENTUM True WirelessIP54 (earbuds only)

Sennheiser HD 800 SNot verified

Sources

Sennheiser ACCENTUM True Wireless

Manufacturer specification

Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications

Sennheiser HD 800 S

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Weight per earbud

Sennheiser ACCENTUM True Wireless5.5 g

Sennheiser HD 800 SNot verified

Sources

Sennheiser ACCENTUM True Wireless

Manufacturer specification · Single earbud. The charging case weighs 41 g; both earbuds and case together 52 g.

Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications

Sennheiser HD 800 S

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Wireless case charging

Sennheiser ACCENTUM True WirelessYes

Sennheiser HD 800 SNot verified

Sources

Sennheiser ACCENTUM True Wireless

Manufacturer specification · Model feature copy and power table explicitly advertise Qi wireless charging on the case. No exact Qi version is given.

Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications

Sennheiser HD 800 S

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Dimensions

Sennheiser ACCENTUM True Wireless49.45 x 51.72 x 28.95 mm (earbuds and charging case)

Sennheiser HD 800 SNot verified

Sources

Sennheiser ACCENTUM True Wireless

Manufacturer specification

Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications

Sennheiser HD 800 S

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Weight

Sennheiser ACCENTUM True WirelessNot verified

Sennheiser HD 800 S330 g

Sources

Sennheiser ACCENTUM True Wireless

No source recorded for this side.

Sennheiser HD 800 S

Manufacturer specification · Approximate, without the cable.

Sennheiser HD 800 S — current instruction manual

Evidence is missing or conflicting on at least one side. This is not a verified difference.

0 shared fields have the same recorded value.

YOUR HEADPHONES. YOUR RULES.

Check against your must-haves

Feature matching for the features you select. It doesn’t rate sound or comfort.

Start with your listening setup.

Choose a starting point, then fine-tune your must-haves.

FINE-TUNE THE DETAILS

Your essentials.

These shortcuts select the features shown above. Check the fit against your own equipment and listening space.

A feature match describes the selected requirements. It doesn’t rate sound or comfort.

Open-back designFor a quiet listening spaceClosed-back designAn enclosed outer earcupDetachable cableUnplug the cable at the headphonesBuilt-in microphoneFor calls and voice chatActive noise cancellationNot the same as a closed back

YOUR CHOICE

Sennheiser ACCENTUM True Wireless

Select a feature to check your fit.

YOUR CHOICE

Sennheiser HD 800 S

Select a feature to check your fit.

Feature matching, not a sound-quality score. The specification table links to the evidence for each feature.

WHAT EACH CHOICE ASKS OF YOU

What it brings and what to check

Sennheiser ACCENTUM True Wireless

What it brings

Rated battery is up to 8 hours per charge with ANC off (6 hours with ANC on) and up to 28 hours with the case, with 1 hour of playback from a 10-minute charge.
Manufacturer source
Each earbud weighs 5.5 g and the charging case 41 g, and Sennheiser lists LC3 alongside SBC, AAC and aptX, with Auracast offered by firmware update.
Manufacturer source

What to check

Calls use two microphones per earbud with beamforming for noise reduction, and the ACCENTUM True Wireless product pages do not state multipoint support.
Manufacturer source Manufacturer source
IP54 splash resistance applies to the earbuds only, not the charging case, and Sennheiser's codec list is SBC, AAC, aptX and LC3, with no aptX Adaptive listed.
Manufacturer source

Sennheiser HD 800 S

What it brings

Its 56 mm ring-radiator driver is rated 10–44,100 Hz (−3 dB) with total harmonic distortion of 0.02% or less at 1 kHz and 1 V rms, in a diffuse-field-equalised open design.
Manufacturer source Manufacturer source
Both a 6.35 mm unbalanced and a 4.4 mm balanced cable are included, and the ear pads, headband padding and dust covers can be replaced by the owner.
Manufacturer source Manufacturer source

What to check

At 300 ohms, check that your amplifier or audio source can drive the headphones properly. The documented connection uses the supplied analogue audio cables with 6.35 mm and 4.4 mm plugs.
Manufacturer source Manufacturer source
Sennheiser describes the intended use as listening at home with high-quality audio systems. A standard 3.5 mm adapter can be used, but the reviewed sources do not explicitly establish whether one is included.
Manufacturer source Manufacturer source

COMPARE THE DETAILS

Full specifications

How we verify

Differences only

39 of 39 specifications Sources in each row

Source-backed specifications for Sennheiser ACCENTUM True Wireless and Sennheiser HD 800 S
Specification	Sennheiser ACCENTUM True Wireless	Sennheiser HD 800 S

Wearing styleDifferent Sources Sennheiser ACCENTUM True Wireless Manufacturer specification · Two separate earbuds with a charging case; ear tips in XS/S/M/L are supplied. Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser HD 800 S Manufacturer specification Sennheiser HD 800 S — manufacturer specifications	In-ear, true wireless (ear-canal coupling)	Over-ear (circumaural), open-back dynamic headphones
Weight per earbud Sources Sennheiser ACCENTUM True Wireless Manufacturer specification · Single earbud. The charging case weighs 41 g; both earbuds and case together 52 g. Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser HD 800 S No source recorded.	5.5 g	Not provided
Dimensions Sources Sennheiser ACCENTUM True Wireless Manufacturer specification Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications Sennheiser HD 800 S No source recorded.	49.45 x 51.72 x 28.95 mm (earbuds and charging case)	Not provided
Dust, sweat and water resistance Sources Sennheiser ACCENTUM True Wireless Manufacturer specification Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser HD 800 S No source recorded.	IP54 (earbuds only)	Not provided
Published earbuds and case total weight Sources Sennheiser ACCENTUM True Wireless Manufacturer specification · Manufacturer states 52 g for both earbuds and case; do not confuse this with 5.5 g single-earbud mass. Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications Sennheiser HD 800 S No source recorded.	52 g	Not provided
Acoustic design Sources Sennheiser ACCENTUM True Wireless No source recorded. Sennheiser HD 800 S Manufacturer specification Sennheiser HD 800 S — manufacturer specifications	Not provided	Open-back
Weight Sources Sennheiser ACCENTUM True Wireless No source recorded. Sennheiser HD 800 S Manufacturer specification · Approximate, without the cable. Sennheiser HD 800 S — current instruction manual	Not provided	330 g
Ear pads Sources Sennheiser ACCENTUM True Wireless No source recorded. Sennheiser HD 800 S Manufacturer specification · Replacement procedure shown in the manual. Sennheiser HD 800 S — manufacturer specifications Sennheiser HD 800 S — current instruction manual	Not provided	Microfibre ear pads; replaceable
Replaceable parts Sources Sennheiser ACCENTUM True Wireless No source recorded. Sennheiser HD 800 S Manufacturer specification · Replacement procedures are in the manual; spare-part availability varies. Sennheiser HD 800 S — current instruction manual	Not provided	Detachable cables; replaceable ear pads, headband padding and washable 3D-mesh dust covers
Rated contact pressure Sources Sennheiser ACCENTUM True Wireless No source recorded. Sennheiser HD 800 S Manufacturer specification · Nominal clamping force; individual fit and comfort can differ. Sennheiser HD 800 S — current instruction manual	Not provided	Approximately 3.4 N ±0.3 N

Wired / wireless connectionsDifferent Sources Sennheiser ACCENTUM True Wireless Manufacturer specification · Auracast is advertised with the condition “available via firmware update only”. The pages do not identify the required firmware version or establish multipoint support. Charging is represented separately. Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications Sennheiser HD 800 S Manufacturer specification · The XLR-4 cable is an optional accessory. The manual describes using a standard 3.5 mm adapter, but its inclusion or exclusion is not explicitly established by the reviewed package list. Sennheiser HD 800 S — manufacturer specifications Sennheiser HD 800 S — current instruction manual	Bluetooth 5.3 (class 1; Bluetooth Classic and Bluetooth LE), with A2DP, AVRCP, HFP, TMAP and PBP profiles and SBC, AAC, aptX and LC3 codecs	Wired analogue; detachable 6.35 mm unbalanced and 4.4 mm balanced cables
Battery life Sources Sennheiser ACCENTUM True Wireless Manufacturer specification · Sennheiser's test condition: iPhone, mid volume level 85 dB. The 28-hour case figure is not split by ANC state. Built-in lithium-ion batteries: 55 mAh per earbud, 400–420 mAh case. Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications Sennheiser HD 800 S The reviewed exact manufacturer sources do not explicitly give battery life or state that no battery is required for operation. A wired analogue connection is known; the generic disposal wording “battery/rechargeable battery (if applicable)” establishes neither presence nor absence. · Manufacturer specification Sennheiser HD 800 S — manufacturer specifications Sennheiser HD 800 S — current instruction manual Sennheiser HD 800 S — manufacturer specification table	Earbuds: up to 8 hours music playtime with ANC off, up to 6 hours with ANC on. With the charging case: up to 28 hours overall music playtime. 10 minutes of charging gives 1 hour; a full charge takes about 1.5 hours.	Not listed by the manufacturer
Manufacturer charging-time claim Sources Sennheiser ACCENTUM True Wireless Manufacturer specification · The row does not explicitly name a component, charge path, codec or ANC mode. Ambient temperatures below 15°C or above 30°C and Qi wireless charging extend charging time. Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications Sennheiser HD 800 S No source recorded.	Approx. 1.5 hours for a full charge; 10 minutes of charging gives 1 hour of music playtime	Not provided
Case charging connector Sources Sennheiser ACCENTUM True Wireless Manufacturer specification · Manufacturer charging connection; this does not establish USB audio or cable data operation. Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications Sennheiser HD 800 S No source recorded.	USB Type-C	Not provided
Wireless case charging Sources Sennheiser ACCENTUM True Wireless Manufacturer specification · Model feature copy and power table explicitly advertise Qi wireless charging on the case. No exact Qi version is given. Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications Sennheiser HD 800 S No source recorded.	Yes	Not provided
Auracast broadcast-audio support Sources Sennheiser ACCENTUM True Wireless Manufacturer specification · Manufacturer condition: available via firmware update only. Required firmware version and installed update status were not established; do not present it as unconditional on every unit. Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications Sennheiser HD 800 S No source recorded.	Yes	Not provided
Earbud and case battery capacities Sources Sennheiser ACCENTUM True Wireless Manufacturer specification · Manufacturer component capacities, not combined capacity or measured runtime. Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications Sennheiser HD 800 S No source recorded.	55 mAh per earbud; 400–420 mAh case	Not provided
Included cable length Sources Sennheiser ACCENTUM True Wireless No source recorded. Sennheiser HD 800 S Manufacturer specification · Length of the supplied cable. Sennheiser HD 800 S — manufacturer specifications Sennheiser HD 800 S — current instruction manual	Not provided	3 m
Included and optional cables Sources Sennheiser ACCENTUM True Wireless No source recorded. Sennheiser HD 800 S Manufacturer specification · Optional cables are sold separately; balanced cables need a balanced headphone output. Sennheiser HD 800 S — manufacturer specifications Sennheiser HD 800 S — current instruction manual	Not provided	Detachable 3 m unbalanced and balanced cables included; XLR-4 cable optional
Supplied plug configuration Sources Sennheiser ACCENTUM True Wireless No source recorded. Sennheiser HD 800 S Manufacturer specification · Needs a matching headphone output; the 4.4 mm balanced cable needs a balanced output. Sennheiser HD 800 S — manufacturer specifications Sennheiser HD 800 S — current instruction manual	Not provided	6.35 mm unbalanced cable and 4.4 mm balanced cable

DriversDifferent Sources Sennheiser ACCENTUM True Wireless Manufacturer specification Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser HD 800 S Manufacturer specification · The driver, diaphragm and voice-coil sizes describe different parts. Sennheiser HD 800 S — manufacturer specifications Sennheiser HD 800 S — current instruction manual	7 mm TrueResponse dynamic driver per earbud	56 mm dynamic ring radiator; 40 mm voice coil; angled drivers, acoustic absorber, vibration-damping chassis and headband insert
Frequency responseDifferent Sources Sennheiser ACCENTUM True Wireless Manufacturer specification Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser HD 800 S Manufacturer specification · The manual gives both thresholds; the UK page lists only the wider range. Sennheiser HD 800 S — manufacturer specifications Sennheiser HD 800 S — current instruction manual	5 Hz to 21 kHz	10–44,100 Hz (−3 dB); 4–51,000 Hz (−10 dB)
Sound pressure levelDifferent Sources Sennheiser ACCENTUM True Wireless Manufacturer specification · Speaker sensitivity as listed by Sennheiser; impedance is listed as not applicable (active Bluetooth headphones). Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications Sennheiser HD 800 S Manufacturer specification · Rated at 1 kHz with 1 V rms; not directly comparable with dB/mW ratings. Sennheiser HD 800 S — current instruction manual	107 dB SPL (1 kHz / 1 mW)	102 dB SPL at 1 kHz, 1 V rms
Total harmonic distortionDifferent Sources Sennheiser ACCENTUM True Wireless Manufacturer specification · Sennheiser prints '<0,08% (1 kHz / 94 dB)' (decimal comma). Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications Sennheiser HD 800 S Manufacturer specification Sennheiser HD 800 S — manufacturer specifications Sennheiser HD 800 S — current instruction manual	<0.08% (1 kHz / 94 dB)	≤0.02% at 1 kHz, 1 V rms
Nominal impedance Sources Sennheiser ACCENTUM True Wireless No source recorded. Sennheiser HD 800 S Manufacturer specification · Nominal impedance; check that your amplifier or audio source can drive this load. Sennheiser HD 800 S — manufacturer specifications	Not provided	300 ohm
Driver diameter Sources Sennheiser ACCENTUM True Wireless No source recorded. Sennheiser HD 800 S Manufacturer specification · Ring-radiator transducer diameter. Sennheiser HD 800 S — manufacturer specifications Sennheiser HD 800 S — current instruction manual	Not provided	56 mm
Frequency equalisation Sources Sennheiser ACCENTUM True Wireless No source recorded. Sennheiser HD 800 S Manufacturer specification Sennheiser HD 800 S — current instruction manual	Not provided	Diffuse-field equalised
Rated long-term input power Sources Sennheiser ACCENTUM True Wireless No source recorded. Sennheiser HD 800 S Manufacturer specification · Maximum input the headphones can handle, not the amplifier power they need. Sennheiser HD 800 S — current instruction manual	Not provided	Maximum 500 mW under EN 60-268-7

Microphone Sources Sennheiser ACCENTUM True Wireless Manufacturer specification · Two MEMS microphones per earbud with beamforming for noise reduction; microphone frequency range 100 Hz to 10 kHz. Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser HD 800 S The reviewed exact manufacturer sources do not explicitly establish microphone presence or absence for the supplied configuration. Stereo audio conductors and omitted controls are not proof that no microphone exists. · Manufacturer specification Sennheiser HD 800 S — manufacturer specifications Sennheiser HD 800 S — current instruction manual Sennheiser HD 800 S — manufacturer specification table	Yes	Not listed by the manufacturer
Active noise cancellation Sources Sennheiser ACCENTUM True Wireless Manufacturer specification · Hybrid ANC with a Transparency Mode. Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser HD 800 S The reviewed exact manufacturer sources establish open-back dynamic construction but do not explicitly state whether active noise cancellation is present or absent. Acoustic mesh, an absorber or an omitted ANC control does not establish ANC=false. · Manufacturer specification Sennheiser HD 800 S — manufacturer specifications Sennheiser HD 800 S — current instruction manual Sennheiser HD 800 S — manufacturer specification table	Yes	Not listed by the manufacturer

Companion app Sources Sennheiser ACCENTUM True Wireless Manufacturer specification · The specification table's 'App support' lists only the Sennheiser Smart Control app for iOS and Android, while the same page's 'Smart Control Plus App' section recommends the Sennheiser Smart Control Plus app. Sennheiser does not say which app features differ for this model; both names are recorded. Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications Sennheiser HD 800 S No source recorded.	Sennheiser Smart Control app (5-band EQ, presets, Soundcheck); the page also promotes the Sennheiser Smart Control Plus app (built-in EQ, sound modes, Sound Personalization)	Not provided
Earbud controls Sources Sennheiser ACCENTUM True Wireless Manufacturer specification Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications Sennheiser HD 800 S No source recorded.	Customizable touch interface for audio playback, calls and voice assistant	Not provided

Static magnetic field at the surface Sources Sennheiser ACCENTUM True Wireless No source recorded. Sennheiser HD 800 S Manufacturer specification · Static magnetic field at the headphone surface. Sennheiser HD 800 S — manufacturer specifications Sennheiser HD 800 S — current instruction manual	Not provided	10.5 mT
Operating temperature Sources Sennheiser ACCENTUM True Wireless No source recorded. Sennheiser HD 800 S Manufacturer specification · Storage −20 °C to +70 °C; relative humidity 10–80% operating and 10–90% storage, non-condensing. Sennheiser HD 800 S — current instruction manual	Not provided	−10 °C to +55 °C

Show unverified (5)Not verified, not provided or conflicting for both products. Kept for completeness; never counted as a difference.

Specifications without verified values for either product
User-replaceable earbud and case batteries Sources Sennheiser ACCENTUM True Wireless The tables call the batteries built-in but do not explicitly establish whether owners can replace them. Built-in and omitted repair instructions do not mean non-replaceable. · Manufacturer specification Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications Sennheiser HD 800 S No source recorded.	Not listed by the manufacturer	Not provided
Bluetooth multipoint Sources Sennheiser ACCENTUM True Wireless The complete reviewed exact model pages do not explicitly establish multipoint presence or absence. · Manufacturer specification Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications Sennheiser HD 800 S No source recorded.	Not listed by the manufacturer	Not provided
Manufacturer spatial audio Sources Sennheiser ACCENTUM True Wireless The complete reviewed ACCENTUM pages do not explicitly establish spatial-audio presence or absence. Absence from its feature inventory is not false. · Manufacturer specification Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications Sennheiser HD 800 S No source recorded.	Not listed by the manufacturer	Not provided
USB Power Delivery charging Sources Sennheiser ACCENTUM True Wireless The power row lists 5 V / 1000 mA and USB-C, but does not explicitly establish Power Delivery support or absence. Connector shape and an omitted PD label do not mean false. · Manufacturer specification Sennheiser (UK) — ACCENTUM True Wireless: product page and specifications Sennheiser (US) — ACCENTUM True Wireless: product page and specifications Sennheiser HD 800 S No source recorded.	Not listed by the manufacturer	Not provided
Supplied 3.5 mm adapter Sources Sennheiser ACCENTUM True Wireless No source recorded. Sennheiser HD 800 S The manual describes using a standard 3.5 mm adapter but does not explicitly say it is supplied or not supplied. It is absent from the reviewed package list; that omission is not a definitive exclusion. · Manufacturer specification Sennheiser HD 800 S — manufacturer specifications Sennheiser HD 800 S — current instruction manual	Not provided	Not listed by the manufacturer

First product manufacturer source Second product manufacturer source

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