HEADPHONES · YOUR NEXT FACE-OFF

Samsung Galaxy Buds3 vs Sennheiser HD 660S2

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

Compared products

YOUR FIRST CHOICE

Samsung Galaxy Buds3

Silver · UK SM-R530NZAAEUA

Full product profile Official image

Exact model & source notes

Silver open-type wireless earbuds with a one-way 11 mm speaker, Bluetooth 5.4 and active noise cancellation. Samsung rates music at up to five hours per charge with ANC on, or 24 hours including the case. The case supports USB-C and wireless charging; Galaxy-specific features retain their device and software conditions.

Specifications checked 17 Oct 2026.

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

Manufacturer specifications

WHICH SUITS YOU?

Choose the Samsung Galaxy Buds3 for

A wireless connection

Choose the Sennheiser HD 660S2 for

A wired connection

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

See the 3 verified differences

THE CONTENDER

Sennheiser HD 660S2

700240 · black with bronze accents · 300 ohm · 1.8 m balanced and unbalanced cables

Full product profile Official image

Exact model & source notes

The HD 660S2 is an open-back, over-ear headphone with a 38 mm dynamic driver rated 8–41,500 Hz (−10 dB) at 300 ohms. Sennheiser revised its acoustics for stronger sub-bass, and it ships with 1.8 m 6.35 mm unbalanced and 4.4 mm balanced cables plus a 3.5 mm adapter.

Specifications checked 11 Sept 2026.

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

Manufacturer specifications

Samsung Galaxy Buds3 UK & US retailers

UK & US price history: no verified listing yet

Sennheiser HD 660S2 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.

Samsung Galaxy Buds3Not verified

Sennheiser HD 660S2Yes

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 ↓

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

Connections

Samsung Galaxy Buds3Bluetooth 5.4; A2DP, AVRCP, HFP, PBP, TMAP; LE Audio

Sennheiser HD 660S2Wired analogue stereo; 1.8 m cables with 6.35 mm unbalanced and 4.4 mm balanced plugs; included 3.5 mm adapter

Sources

Samsung Galaxy Buds3

Manufacturer specification · Audio is transmitted over Bluetooth. The USB-C connector and wireless charging belong to the charging case, not a wired audio connection.

Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes

Sennheiser HD 660S2

Manufacturer specification

Sennheiser HD 660S2 — exact model specifications Sennheiser HD 660S2 — operating guide and specifications

Check the exact configuration and source conditions for your use.

Driver design

Samsung Galaxy Buds3One-way 11 mm speaker

Sennheiser HD 660S238 mm open dynamic transducer; aluminium voice coil and vented magnet system

Sources

Samsung Galaxy Buds3

Manufacturer specification · Manufacturer driver-size and configuration claim. No Pro planar-tweeter/dual-amplifier specification or independent sound-quality result is transferred.

Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes

Sennheiser HD 660S2

Manufacturer specification · Sennheiser lists 38 mm as the transducer size.

Sennheiser HD 660S2 — exact model specifications

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

Wearing style

Samsung Galaxy Buds3Open-type, true wireless earbuds

Sennheiser HD 660S2Over-ear (circumaural), open-back dynamic headphones

Sources

Samsung Galaxy Buds3

Manufacturer specification · Samsung describes an open-type angled design. This is the non-Pro SM-R530 model; Pro silicone-tip and dual-amplifier descriptions are not transferred.

Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes

Sennheiser HD 660S2

Manufacturer specification

Sennheiser HD 660S2 — operating guide and specifications

Check the exact configuration and source conditions for your use.

Missing or non-comparable evidence (38)

Acoustic design

Samsung Galaxy Buds3Not verified

Sennheiser HD 660S2Open-back

Sources

Samsung Galaxy Buds3

No source recorded for this side.

Sennheiser HD 660S2

Manufacturer specification

Sennheiser HD 660S2 — operating guide and specifications

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

Active noise cancellation

Samsung Galaxy Buds3Yes

Sennheiser HD 660S2Not verified

Sources

Samsung Galaxy Buds3

Manufacturer specification · Samsung lists Active Noise Cancellation and Adaptive ANC. ANC is off by default. Its selected-model specification explicitly lists Ambient Sound as No; this does not imply passive isolation from surrounding sound.

Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes

Sennheiser HD 660S2

The reviewed exact sources do not explicitly establish active noise cancellation absence. Preserve separately sourced acoustic design and passive attenuation; they cannot turn omitted ANC into a false capability. · Manufacturer specification

Sennheiser HD 660S2 — operating guide and specifications

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

Microphone

In Visual facts

Samsung Galaxy Buds3Yes

Sennheiser HD 660S2Not verified

Sources

Samsung Galaxy Buds3

Manufacturer specification · Samsung lists six microphones in total and a Voice Pickup Unit sensor. Super Wide Band calling is listed; available options depend on the connected device. No measured speech-quality result is inferred.

Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes

Sennheiser HD 660S2

The reviewed exact sources do not explicitly establish microphone absence. Omission from a package or technical inventory, a stereo audio connector, and a without-remote statement do not establish microphone=false. · Manufacturer specification

Sennheiser HD 660S2 — operating guide and specifications

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

Battery life

Samsung Galaxy Buds3Music: earbuds up to 5 hours with ANC on or 6 hours with ANC off; earbuds with case up to 24 hours with ANC on or 30 hours with ANC off. Talk: earbuds up to 3.5/4 hours and with case up to 18/20 hours, with ANC on/off respectively.

Sennheiser HD 660S2Not verified

Sources

Samsung Galaxy Buds3

Manufacturer specification · The state-specific specification table supplies these figures. Samsung tested pre-production Galaxy Buds3 paired with a recently released Galaxy smartphone at default settings. Actual life varies with settings, usage, charge cycles and Bluetooth signal. The general footer advertises up to 30 hours across ANC on/off; it is not treated as a separate 30-hour ANC-on claim.

Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes

Sennheiser HD 660S2

The reviewed exact sources do not explicitly establish battery life or that no battery is required for operation. A wired/dynamic audio path, omitted charger or Battery included N is not an explicit operating-power requirement. · Manufacturer specification

Sennheiser HD 660S2 — operating guide and specifications

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

Nominal impedance

Samsung Galaxy Buds3Not verified

Sennheiser HD 660S2300 ohm

Sources

Samsung Galaxy Buds3

No source recorded for this side.

Sennheiser HD 660S2

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

Sennheiser HD 660S2 — operating guide and specifications

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

Published acoustic changes

Samsung Galaxy Buds3Not verified

Sennheiser HD 660S2Revised 300-ohm coil, more compliant surround, 70 Hz resonance and revised transducer airflow

Sources

Samsung Galaxy Buds3

No source recorded for this side.

Sennheiser HD 660S2

Manufacturer specification · Sennheiser describes these changes as the S2 revision of the HD 660S.

Sennheiser HD 660S2 — exact model specifications

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

Electronic Ambient Sound mode

Samsung Galaxy Buds3No

Sennheiser HD 660S2Not verified

Sources

Samsung Galaxy Buds3

Manufacturer specification · The selected Galaxy Buds3 specification table explicitly says Ambient Sound: No. This is a feature-mode statement, not a claim of physical isolation.

Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes

Sennheiser HD 660S2

No source recorded for this side.

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

Samsung Auto Switch

Samsung Galaxy Buds3Yes

Sennheiser HD 660S2Not verified

Sources

Samsung Galaxy Buds3

Manufacturer specification · Samsung Account login required. Listed support covers Galaxy Book with One UI 6.0 or later, Galaxy phones/tablets with One UI 4.1.1 or later and Galaxy Watch4 or later. Supported Samsung TVs launched from February 2022 require the applicable firmware; TV Auto Switch covers phone calls.

Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes

Sennheiser HD 660S2

No source recorded for this side.

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

Typical battery capacity

Samsung Galaxy Buds348 mAh per earbud; 515 mAh charging case

Sennheiser HD 660S2Not verified

Sources

Samsung Galaxy Buds3

Manufacturer specification · Typical, not minimum, capacities. Case capacity is separate from each earbud.

Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes

Sennheiser HD 660S2

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

Samsung Galaxy Buds3Not verified

Sennheiser HD 660S2Detachable 1.8 m unbalanced and 4.4 mm balanced cables included; XLR-4 cable optional

Sources

Samsung Galaxy Buds3

No source recorded for this side.

Sennheiser HD 660S2

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

Sennheiser HD 660S2 — exact model specifications Sennheiser HD 660S2 — operating guide and specifications

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

Included cable length

Samsung Galaxy Buds3Not verified

Sennheiser HD 660S21.8 m

Sources

Samsung Galaxy Buds3

No source recorded for this side.

Sennheiser HD 660S2

Manufacturer specification · Length of the supplied cable.

Sennheiser HD 660S2 — operating guide and specifications

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

Charging

Samsung Galaxy Buds3Charging case: USB Type-C wired charging and wireless charging

Sennheiser HD 660S2Not verified

Sources

Samsung Galaxy Buds3

Manufacturer specification · Manual pages 6 and 9–12 identify the USB-C port and built-in wireless charging coil. Wireless charger and mains charger are sold separately. Wireless power sharing requires a supporting host and correct coil alignment; no Qi version or charge-time rating is inferred.

Samsung Galaxy Buds3/Buds3 Pro English user guide rev.1.4 (25 June 2025), linked by the exact UK model page

Sennheiser HD 660S2

No source recorded for this side.

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

Audio codecs

Samsung Galaxy Buds3AAC, SBC, SSC (Samsung Seamless Codec), SSC-UHQ

Sennheiser HD 660S2Not verified

Sources

Samsung Galaxy Buds3

Manufacturer specification · Up to 24-bit/96 kHz UHQ audio is stated for Galaxy S24/S23 series, Z Fold6/Flip6/Fold5/Flip5 and Tab S9 series with One UI 6.1.1 or later. Support for unlisted devices is not established by that list.

Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes

Sennheiser HD 660S2

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

Samsung Galaxy Buds3Not verified

Sennheiser HD 660S26.35 mm unbalanced cable; 4.4 mm balanced cable; 6.35 mm-to-3.5 mm adapter

Sources

Samsung Galaxy Buds3

No source recorded for this side.

Sennheiser HD 660S2

Manufacturer specification · The 4.4 mm balanced cable needs a balanced headphone output; an XLR-4 cable is optional.

Sennheiser HD 660S2 — exact model specifications Sennheiser HD 660S2 — operating guide and specifications

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

Rated contact pressure

Samsung Galaxy Buds3Not verified

Sennheiser HD 660S2Approximately 6.0 N ±1.0 N

Sources

Samsung Galaxy Buds3

No source recorded for this side.

Sennheiser HD 660S2

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

Sennheiser HD 660S2 — operating guide and specifications

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

Controls

Samsung Galaxy Buds3Pinch for playback/calls; double/triple pinch for next/previous track; swipe for volume; configurable pinch-and-hold

Sennheiser HD 660S2Not verified

Sources

Samsung Galaxy Buds3

Manufacturer specification · The manual describes one pinch to play/pause or answer/end a call, pinch-and-hold to decline calls, and up/down swipes for volume. Settings are managed in Galaxy Wearable.

Samsung Galaxy Buds3/Buds3 Pro English user guide rev.1.4 (25 June 2025), linked by the exact UK model page

Sennheiser HD 660S2

No source recorded for this side.

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

Rated total harmonic distortion

Samsung Galaxy Buds3Not verified

Sennheiser HD 660S2≤0.04% at 1 kHz, 100 dB SPL

Sources

Samsung Galaxy Buds3

No source recorded for this side.

Sennheiser HD 660S2

Manufacturer specification · Rated at 1 kHz and 100 dB SPL; other models use different test levels, so compare with care.

Sennheiser HD 660S2 — exact model specifications Sennheiser HD 660S2 — operating guide and specifications

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

Ear pads

Samsung Galaxy Buds3Not verified

Sennheiser HD 660S2Velour ear pads; replaceable

Sources

Samsung Galaxy Buds3

No source recorded for this side.

Sennheiser HD 660S2

Manufacturer specification · Replacement procedure shown in the manual.

Sennheiser HD 660S2 — exact model specifications Sennheiser HD 660S2 — operating guide and specifications

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

Equalisation

Samsung Galaxy Buds3Adaptive EQ; selectable and custom equaliser

Sennheiser HD 660S2Not verified

Sources

Samsung Galaxy Buds3

Manufacturer specification · Custom equaliser options are configured in Galaxy Wearable. Available options depend on the connected mobile device.

Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes Samsung Galaxy Buds3/Buds3 Pro English user guide rev.1.4 (25 June 2025), linked by the exact UK model page

Sennheiser HD 660S2

No source recorded for this side.

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

Frequency equalisation

Samsung Galaxy Buds3Not verified

Sennheiser HD 660S2Diffuse-field equalised

Sources

Samsung Galaxy Buds3

No source recorded for this side.

Sennheiser HD 660S2

Manufacturer specification

Sennheiser HD 660S2 — operating guide and specifications

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

Rated frequency range

Samsung Galaxy Buds3Not verified

Sennheiser HD 660S28–41,500 Hz (−10 dB)

Sources

Samsung Galaxy Buds3

No source recorded for this side.

Sennheiser HD 660S2

Manufacturer specification

Sennheiser HD 660S2 — operating guide and specifications

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

Galaxy AI features

Samsung Galaxy Buds3Interpreter listening through a compatible Samsung Galaxy smartphone

Sennheiser HD 660S2Not verified

Sources

Samsung Galaxy Buds3

Manufacturer specification · Interpreter runs on the connected phone, not independently in the earbuds. Samsung Account login and language downloads may be required; availability varies by language, region, carrier and device. Accuracy is not guaranteed.

Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes

Sennheiser HD 660S2

No source recorded for this side.

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

Included items

Samsung Galaxy Buds3Charging case and supplied USB Type-C cable

Sennheiser HD 660S2Not verified

Sources

Samsung Galaxy Buds3

Manufacturer specification · The model-page footnote identifies the provided charging case for Galaxy Buds3. The shared English guide identifies the supplied USB-C cable and says chargers are sold separately.

Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes Samsung Galaxy Buds3/Buds3 Pro English user guide rev.1.4 (25 June 2025), linked by the exact UK model page

Sennheiser HD 660S2

No source recorded for this side.

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

Rated long-term input power

Samsung Galaxy Buds3Not verified

Sennheiser HD 660S2Maximum 500 mW under EN 60-268-7

Sources

Samsung Galaxy Buds3

No source recorded for this side.

Sennheiser HD 660S2

Manufacturer specification · Rated to EN 60-268-7; the maximum input the headphones can handle, not the amplifier power they need.

Sennheiser HD 660S2 — operating guide and specifications

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

Static magnetic field at the surface

Samsung Galaxy Buds3Not verified

Sennheiser HD 660S24.5 mT

Sources

Samsung Galaxy Buds3

No source recorded for this side.

Sennheiser HD 660S2

Manufacturer specification · Static magnetic field at the headphone surface.

Sennheiser HD 660S2 — exact model specifications Sennheiser HD 660S2 — operating guide and specifications

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

Neck stretch reminder

Samsung Galaxy Buds3Yes

Sennheiser HD 660S2Not verified

Sources

Samsung Galaxy Buds3

Manufacturer specification

Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes

Sennheiser HD 660S2

No source recorded for this side.

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

Operating temperature

Samsung Galaxy Buds3Not verified

Sennheiser HD 660S2−10 °C to +55 °C

Sources

Samsung Galaxy Buds3

No source recorded for this side.

Sennheiser HD 660S2

Manufacturer specification

Sennheiser HD 660S2 — operating guide and specifications

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

Samsung Find

Samsung Galaxy Buds3Yes

Sennheiser HD 660S2Not verified

Sources

Samsung Galaxy Buds3

Manufacturer specification

Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes

Sennheiser HD 660S2

No source recorded for this side.

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

Rated sensitivity

Samsung Galaxy Buds3Not verified

Sennheiser HD 660S2104 dB SPL at 1 kHz, 1 V rms

Sources

Samsung Galaxy Buds3

No source recorded for this side.

Sennheiser HD 660S2

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

Sennheiser HD 660S2 — operating guide and specifications

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

Sensors

Samsung Galaxy Buds3Accelerometer, gyro, Hall, pressure, proximity and touch sensors; Voice Pickup Unit

Sennheiser HD 660S2Not verified

Sources

Samsung Galaxy Buds3

Manufacturer specification

Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes

Sennheiser HD 660S2

No source recorded for this side.

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

Replaceable parts

Samsung Galaxy Buds3Not verified

Sennheiser HD 660S2Detachable cable and replaceable ear pads

Sources

Samsung Galaxy Buds3

No source recorded for this side.

Sennheiser HD 660S2

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

Sennheiser HD 660S2 — operating guide and specifications

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

Spatial audio

Samsung Galaxy Buds3360 Audio with head tracking

Sennheiser HD 660S2Not verified

Sources

Samsung Galaxy Buds3

Manufacturer specification · Requires supported Samsung Galaxy smartphones/tablets with One UI 3.1 or later, or selected Samsung TVs. App/content and model support vary. Direct Multi-channel requires One UI 4.1.1 or later.

Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes

Sennheiser HD 660S2

No source recorded for this side.

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

Manufacturer sub-bass claim

Samsung Galaxy Buds3Not verified

Sennheiser HD 660S2Double the sound pressure at the lowest frequencies

Sources

Samsung Galaxy Buds3

No source recorded for this side.

Sennheiser HD 660S2

Manufacturer specification · Sennheiser does not give the frequency range or comparison model for this claim.

Sennheiser HD 660S2 — exact model specifications

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

Voice commands

Samsung Galaxy Buds3Fixed Korean and English commands; Bixby voice wake-up

Sennheiser HD 660S2Not verified

Sources

Samsung Galaxy Buds3

Manufacturer specification · Bixby requires a compatible connected device; language, region and feature availability vary.

Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes Samsung Galaxy Buds3/Buds3 Pro English user guide rev.1.4 (25 June 2025), linked by the exact UK model page

Sennheiser HD 660S2

No source recorded for this side.

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

Dust and water resistance

Samsung Galaxy Buds3IP57 earbuds; charging case is not water resistant

Sennheiser HD 660S2Not verified

Sources

Samsung Galaxy Buds3

Manufacturer specification · Laboratory fresh-water immersion test: up to 1 metre for up to 30 minutes. Not advised for beach or pool use. Damaged earbuds are not guaranteed water resistant; dry earbuds and hands before placing earbuds in the case.

Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes

Sennheiser HD 660S2

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

Samsung Galaxy Buds34.7 g

Sennheiser HD 660S2Not verified

Sources

Samsung Galaxy Buds3

Manufacturer specification · Each earbud; the charging case is separately listed as 46.5 g.

Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes

Sennheiser HD 660S2

No source recorded for this side.

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

Earbud and charging-case dimensions

Samsung Galaxy Buds3Each earbud: 18.1 × 20.4 × 31.9 mm; case: 48.7 × 58.9 × 24.4 mm

Sennheiser HD 660S2Not verified

Sources

Samsung Galaxy Buds3

Manufacturer specification · Samsung gives both tuples in height × width × depth order.

Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes

Sennheiser HD 660S2

No source recorded for this side.

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

Weight

Samsung Galaxy Buds3Not verified

Sennheiser HD 660S2260 g

Sources

Samsung Galaxy Buds3

No source recorded for this side.

Sennheiser HD 660S2

Manufacturer specification · Approximate, without the cable.

Sennheiser HD 660S2 — operating guide and specifications

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

Samsung Galaxy Buds3

Select a feature to check your fit.

YOUR CHOICE

Sennheiser HD 660S2

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

Samsung Galaxy Buds3

What it brings

The specified earbud mass is 4.7 g each, with an open-type design and stem controls for playback, calls and volume.
Manufacturer source Manufacturer source
The charging case supports USB-C and wireless charging; a USB-C cable is supplied.
Manufacturer source Manufacturer source
Samsung lists ANC and Adaptive EQ, with compatible Galaxy devices supporting additional audio and switching features.
Manufacturer source

What to check

ANC is off by default, and Samsung explicitly lists no electronic Ambient Sound mode for this non-Pro model.
Manufacturer source
UHQ audio, 360 Audio and Auto Switch depend on compatible Galaxy devices and software; a general Bluetooth connection does not establish every feature.
Manufacturer source
The IP57 rating applies to the earbuds, not the charging case. Battery ratings are conditional maxima and are lower with ANC on.
Manufacturer source Manufacturer source

Sennheiser HD 660S2

What it brings

Both a 4.4 mm balanced and a 6.35 mm unbalanced cable are included with a 3.5 mm adapter, and the velour ear pads are replaceable.
Manufacturer source Manufacturer source
A revised 300-ohm voice coil, more compliant surround and vented magnet system are designed for more sub-bass, and sensitivity is rated at 104 dB SPL at 1 V.
Manufacturer source Manufacturer source

What to check

At 300 ohms with a rated 104 dB SPL at 1 kHz / 1 V rms, check that your amplifier or audio source can drive the headphones properly.
Manufacturer source Manufacturer source
The open-back design leaks sound and lets outside noise in, and the supplied cables are 1.8 m long. An XLR-4 cable is sold separately.
Manufacturer source Manufacturer source

COMPARE THE DETAILS

Full specifications

How we verify

Differences only

41 of 41 specifications Sources in each row

Source-backed specifications for Samsung Galaxy Buds3 and Sennheiser HD 660S2
Specification	Samsung Galaxy Buds3	Sennheiser HD 660S2

Wearing styleDifferent Sources Samsung Galaxy Buds3 Manufacturer specification · Samsung describes an open-type angled design. This is the non-Pro SM-R530 model; Pro silicone-tip and dual-amplifier descriptions are not transferred. Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes Sennheiser HD 660S2 Manufacturer specification Sennheiser HD 660S2 — operating guide and specifications	Open-type, true wireless earbuds	Over-ear (circumaural), open-back dynamic headphones
Weight per earbud Sources Samsung Galaxy Buds3 Manufacturer specification · Each earbud; the charging case is separately listed as 46.5 g. Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes Sennheiser HD 660S2 No source recorded.	4.7 g	Not provided
Earbud and charging-case dimensions Sources Samsung Galaxy Buds3 Manufacturer specification · Samsung gives both tuples in height × width × depth order. Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes Sennheiser HD 660S2 No source recorded.	Each earbud: 18.1 × 20.4 × 31.9 mm; case: 48.7 × 58.9 × 24.4 mm	Not provided
Dust and water resistance Sources Samsung Galaxy Buds3 Manufacturer specification · Laboratory fresh-water immersion test: up to 1 metre for up to 30 minutes. Not advised for beach or pool use. Damaged earbuds are not guaranteed water resistant; dry earbuds and hands before placing earbuds in the case. Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes Sennheiser HD 660S2 No source recorded.	IP57 earbuds; charging case is not water resistant	Not provided
Weight Sources Samsung Galaxy Buds3 No source recorded. Sennheiser HD 660S2 Manufacturer specification · Approximate, without the cable. Sennheiser HD 660S2 — operating guide and specifications	Not provided	260 g
Acoustic design Sources Samsung Galaxy Buds3 No source recorded. Sennheiser HD 660S2 Manufacturer specification Sennheiser HD 660S2 — operating guide and specifications	Not provided	Open-back
Replaceable parts Sources Samsung Galaxy Buds3 No source recorded. Sennheiser HD 660S2 Manufacturer specification · Replacement procedures are in the manual; spare-part availability varies. Sennheiser HD 660S2 — operating guide and specifications	Not provided	Detachable cable and replaceable ear pads
Ear pads Sources Samsung Galaxy Buds3 No source recorded. Sennheiser HD 660S2 Manufacturer specification · Replacement procedure shown in the manual. Sennheiser HD 660S2 — exact model specifications Sennheiser HD 660S2 — operating guide and specifications	Not provided	Velour ear pads; replaceable
Rated contact pressure Sources Samsung Galaxy Buds3 No source recorded. Sennheiser HD 660S2 Manufacturer specification · Nominal clamping force; individual fit and comfort can differ. Sennheiser HD 660S2 — operating guide and specifications	Not provided	Approximately 6.0 N ±1.0 N

ConnectionsDifferent Sources Samsung Galaxy Buds3 Manufacturer specification · Audio is transmitted over Bluetooth. The USB-C connector and wireless charging belong to the charging case, not a wired audio connection. Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes Sennheiser HD 660S2 Manufacturer specification Sennheiser HD 660S2 — exact model specifications Sennheiser HD 660S2 — operating guide and specifications	Bluetooth 5.4; A2DP, AVRCP, HFP, PBP, TMAP; LE Audio	Wired analogue stereo; 1.8 m cables with 6.35 mm unbalanced and 4.4 mm balanced plugs; included 3.5 mm adapter
Battery life Sources Samsung Galaxy Buds3 Manufacturer specification · The state-specific specification table supplies these figures. Samsung tested pre-production Galaxy Buds3 paired with a recently released Galaxy smartphone at default settings. Actual life varies with settings, usage, charge cycles and Bluetooth signal. The general footer advertises up to 30 hours across ANC on/off; it is not treated as a separate 30-hour ANC-on claim. Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes Sennheiser HD 660S2 The reviewed exact sources do not explicitly establish battery life or that no battery is required for operation. A wired/dynamic audio path, omitted charger or Battery included N is not an explicit operating-power requirement. · Manufacturer specification Sennheiser HD 660S2 — operating guide and specifications	Music: earbuds up to 5 hours with ANC on or 6 hours with ANC off; earbuds with case up to 24 hours with ANC on or 30 hours with ANC off. Talk: earbuds up to 3.5/4 hours and with case up to 18/20 hours, with ANC on/off respectively.	Not listed by the manufacturer
Typical battery capacity Sources Samsung Galaxy Buds3 Manufacturer specification · Typical, not minimum, capacities. Case capacity is separate from each earbud. Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes Sennheiser HD 660S2 No source recorded.	48 mAh per earbud; 515 mAh charging case	Not provided
Audio codecs Sources Samsung Galaxy Buds3 Manufacturer specification · Up to 24-bit/96 kHz UHQ audio is stated for Galaxy S24/S23 series, Z Fold6/Flip6/Fold5/Flip5 and Tab S9 series with One UI 6.1.1 or later. Support for unlisted devices is not established by that list. Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes Sennheiser HD 660S2 No source recorded.	AAC, SBC, SSC (Samsung Seamless Codec), SSC-UHQ	Not provided
Samsung Auto Switch Sources Samsung Galaxy Buds3 Manufacturer specification · Samsung Account login required. Listed support covers Galaxy Book with One UI 6.0 or later, Galaxy phones/tablets with One UI 4.1.1 or later and Galaxy Watch4 or later. Supported Samsung TVs launched from February 2022 require the applicable firmware; TV Auto Switch covers phone calls. Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes Sennheiser HD 660S2 No source recorded.	Yes	Not provided
Charging Sources Samsung Galaxy Buds3 Manufacturer specification · Manual pages 6 and 9–12 identify the USB-C port and built-in wireless charging coil. Wireless charger and mains charger are sold separately. Wireless power sharing requires a supporting host and correct coil alignment; no Qi version or charge-time rating is inferred. Samsung Galaxy Buds3/Buds3 Pro English user guide rev.1.4 (25 June 2025), linked by the exact UK model page Sennheiser HD 660S2 No source recorded.	Charging case: USB Type-C wired charging and wireless charging	Not provided
Included cable length Sources Samsung Galaxy Buds3 No source recorded. Sennheiser HD 660S2 Manufacturer specification · Length of the supplied cable. Sennheiser HD 660S2 — operating guide and specifications	Not provided	1.8 m
Supplied plug configuration Sources Samsung Galaxy Buds3 No source recorded. Sennheiser HD 660S2 Manufacturer specification · The 4.4 mm balanced cable needs a balanced headphone output; an XLR-4 cable is optional. Sennheiser HD 660S2 — exact model specifications Sennheiser HD 660S2 — operating guide and specifications	Not provided	6.35 mm unbalanced cable; 4.4 mm balanced cable; 6.35 mm-to-3.5 mm adapter
Included and optional cables Sources Samsung Galaxy Buds3 No source recorded. Sennheiser HD 660S2 Manufacturer specification · Optional cables are sold separately; balanced cables need a balanced headphone output. Sennheiser HD 660S2 — exact model specifications Sennheiser HD 660S2 — operating guide and specifications	Not provided	Detachable 1.8 m unbalanced and 4.4 mm balanced cables included; XLR-4 cable optional

Driver designDifferent Sources Samsung Galaxy Buds3 Manufacturer specification · Manufacturer driver-size and configuration claim. No Pro planar-tweeter/dual-amplifier specification or independent sound-quality result is transferred. Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes Sennheiser HD 660S2 Manufacturer specification · Sennheiser lists 38 mm as the transducer size. Sennheiser HD 660S2 — exact model specifications	One-way 11 mm speaker	38 mm open dynamic transducer; aluminium voice coil and vented magnet system
Spatial audio Sources Samsung Galaxy Buds3 Manufacturer specification · Requires supported Samsung Galaxy smartphones/tablets with One UI 3.1 or later, or selected Samsung TVs. App/content and model support vary. Direct Multi-channel requires One UI 4.1.1 or later. Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes Sennheiser HD 660S2 No source recorded.	360 Audio with head tracking	Not provided
Equalisation Sources Samsung Galaxy Buds3 Manufacturer specification · Custom equaliser options are configured in Galaxy Wearable. Available options depend on the connected mobile device. Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes Samsung Galaxy Buds3/Buds3 Pro English user guide rev.1.4 (25 June 2025), linked by the exact UK model page Sennheiser HD 660S2 No source recorded.	Adaptive EQ; selectable and custom equaliser	Not provided
Nominal impedance Sources Samsung Galaxy Buds3 No source recorded. Sennheiser HD 660S2 Manufacturer specification · Nominal impedance; check that your amplifier or audio source can drive this load. Sennheiser HD 660S2 — operating guide and specifications	Not provided	300 ohm
Rated frequency range Sources Samsung Galaxy Buds3 No source recorded. Sennheiser HD 660S2 Manufacturer specification Sennheiser HD 660S2 — operating guide and specifications	Not provided	8–41,500 Hz (−10 dB)
Rated sensitivity Sources Samsung Galaxy Buds3 No source recorded. Sennheiser HD 660S2 Manufacturer specification · Rated at 1 kHz with 1 V rms; not directly comparable with dB/mW ratings. Sennheiser HD 660S2 — operating guide and specifications	Not provided	104 dB SPL at 1 kHz, 1 V rms
Frequency equalisation Sources Samsung Galaxy Buds3 No source recorded. Sennheiser HD 660S2 Manufacturer specification Sennheiser HD 660S2 — operating guide and specifications	Not provided	Diffuse-field equalised
Rated total harmonic distortion Sources Samsung Galaxy Buds3 No source recorded. Sennheiser HD 660S2 Manufacturer specification · Rated at 1 kHz and 100 dB SPL; other models use different test levels, so compare with care. Sennheiser HD 660S2 — exact model specifications Sennheiser HD 660S2 — operating guide and specifications	Not provided	≤0.04% at 1 kHz, 100 dB SPL
Rated long-term input power Sources Samsung Galaxy Buds3 No source recorded. Sennheiser HD 660S2 Manufacturer specification · Rated to EN 60-268-7; the maximum input the headphones can handle, not the amplifier power they need. Sennheiser HD 660S2 — operating guide and specifications	Not provided	Maximum 500 mW under EN 60-268-7
Published acoustic changes Sources Samsung Galaxy Buds3 No source recorded. Sennheiser HD 660S2 Manufacturer specification · Sennheiser describes these changes as the S2 revision of the HD 660S. Sennheiser HD 660S2 — exact model specifications	Not provided	Revised 300-ohm coil, more compliant surround, 70 Hz resonance and revised transducer airflow
Manufacturer sub-bass claim Sources Samsung Galaxy Buds3 No source recorded. Sennheiser HD 660S2 Manufacturer specification · Sennheiser does not give the frequency range or comparison model for this claim. Sennheiser HD 660S2 — exact model specifications	Not provided	Double the sound pressure at the lowest frequencies

Microphone Sources Samsung Galaxy Buds3 Manufacturer specification · Samsung lists six microphones in total and a Voice Pickup Unit sensor. Super Wide Band calling is listed; available options depend on the connected device. No measured speech-quality result is inferred. Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes Sennheiser HD 660S2 The reviewed exact sources do not explicitly establish microphone absence. Omission from a package or technical inventory, a stereo audio connector, and a without-remote statement do not establish microphone=false. · Manufacturer specification Sennheiser HD 660S2 — operating guide and specifications	Yes	Not listed by the manufacturer
Active noise cancellation Sources Samsung Galaxy Buds3 Manufacturer specification · Samsung lists Active Noise Cancellation and Adaptive ANC. ANC is off by default. Its selected-model specification explicitly lists Ambient Sound as No; this does not imply passive isolation from surrounding sound. Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes Sennheiser HD 660S2 The reviewed exact sources do not explicitly establish active noise cancellation absence. Preserve separately sourced acoustic design and passive attenuation; they cannot turn omitted ANC into a false capability. · Manufacturer specification Sennheiser HD 660S2 — operating guide and specifications	Yes	Not listed by the manufacturer
Electronic Ambient Sound mode Sources Samsung Galaxy Buds3 Manufacturer specification · The selected Galaxy Buds3 specification table explicitly says Ambient Sound: No. This is a feature-mode statement, not a claim of physical isolation. Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes Sennheiser HD 660S2 No source recorded.	No	Not provided

Sensors Sources Samsung Galaxy Buds3 Manufacturer specification Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes Sennheiser HD 660S2 No source recorded.	Accelerometer, gyro, Hall, pressure, proximity and touch sensors; Voice Pickup Unit	Not provided
Controls Sources Samsung Galaxy Buds3 Manufacturer specification · The manual describes one pinch to play/pause or answer/end a call, pinch-and-hold to decline calls, and up/down swipes for volume. Settings are managed in Galaxy Wearable. Samsung Galaxy Buds3/Buds3 Pro English user guide rev.1.4 (25 June 2025), linked by the exact UK model page Sennheiser HD 660S2 No source recorded.	Pinch for playback/calls; double/triple pinch for next/previous track; swipe for volume; configurable pinch-and-hold	Not provided
Galaxy AI features Sources Samsung Galaxy Buds3 Manufacturer specification · Interpreter runs on the connected phone, not independently in the earbuds. Samsung Account login and language downloads may be required; availability varies by language, region, carrier and device. Accuracy is not guaranteed. Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes Sennheiser HD 660S2 No source recorded.	Interpreter listening through a compatible Samsung Galaxy smartphone	Not provided
Samsung Find Sources Samsung Galaxy Buds3 Manufacturer specification Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes Sennheiser HD 660S2 No source recorded.	Yes	Not provided
Neck stretch reminder Sources Samsung Galaxy Buds3 Manufacturer specification Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes Sennheiser HD 660S2 No source recorded.	Yes	Not provided
Voice commands Sources Samsung Galaxy Buds3 Manufacturer specification · Bixby requires a compatible connected device; language, region and feature availability vary. Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes Samsung Galaxy Buds3/Buds3 Pro English user guide rev.1.4 (25 June 2025), linked by the exact UK model page Sennheiser HD 660S2 No source recorded.	Fixed Korean and English commands; Bixby voice wake-up	Not provided

Included items Sources Samsung Galaxy Buds3 Manufacturer specification · The model-page footnote identifies the provided charging case for Galaxy Buds3. The shared English guide identifies the supplied USB-C cable and says chargers are sold separately. Samsung UK Galaxy Buds3 — exact Silver SM-R530NZAAEUA specifications and footnotes Samsung Galaxy Buds3/Buds3 Pro English user guide rev.1.4 (25 June 2025), linked by the exact UK model page Sennheiser HD 660S2 No source recorded.	Charging case and supplied USB Type-C cable	Not provided

Static magnetic field at the surface Sources Samsung Galaxy Buds3 No source recorded. Sennheiser HD 660S2 Manufacturer specification · Static magnetic field at the headphone surface. Sennheiser HD 660S2 — exact model specifications Sennheiser HD 660S2 — operating guide and specifications	Not provided	4.5 mT
Operating temperature Sources Samsung Galaxy Buds3 No source recorded. Sennheiser HD 660S2 Manufacturer specification Sennheiser HD 660S2 — operating guide and specifications	Not provided	−10 °C to +55 °C

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Each record represents an explicitly checked model and configuration. Original import: 5 Sept 2026; this is not its verification date. This is not a list of current offers or a popularity ranking.