MICE · YOUR NEXT FACE-OFF

Logitech MX Master 4 vs Razer DeathAdder Essential

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

Compared products

YOUR FIRST CHOICE

Logitech MX Master 4

Graphite · 910-007562 · UK manufacturer configuration

Full product profile Official image

Exact model & source notes

The MX Master 4 (UK part 910-007562, Graphite) is a Logitech productivity mouse with a Haptic Sense Panel and customisable haptic feedback. It has eight buttons, tracks at 200–8,000 DPI including on glass of at least 4 mm thickness, pairs with up to three devices, and ships with a USB-C Logi Bolt receiver as well as Bluetooth.

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 Logitech MX Master 4 for

A wireless connection
More stated listed controls: 8 vs 5

Choose the Razer DeathAdder Essential for

A wired connection

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

See the 7 verified differences

THE CONTENDER

Razer DeathAdder Essential

Black · RZ01-03850100-R3M1 · UK manufacturer configuration

Full product profile Official image

Exact model & source notes

The DeathAdder Essential is Razer's entry-level wired right-handed ergonomic mouse: 96 g, a 6,400 DPI optical sensor, five programmable buttons and mechanical switches rated for 10 million clicks.

Specifications checked 26 Sept 2026.

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

Manufacturer specifications

Logitech MX Master 4 UK & US retailers

UK & US price history: no verified listing yet

Razer DeathAdder Essential 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.

SPECIFICATIONS SIDE BY SIDE7 topics

SELECTED TOPIC

01 / 07

Connections

Check the exact configuration and source conditions for your use.

Logitech MX Master 4Bluetooth Low Energy (5.1); Logi Bolt USB-C receiver included

Manufacturer specification · Logitech states compatibility with both USB-C and USB-A Bolt receivers; the box contents list a USB-C Bolt receiver.

Source 1

Razer DeathAdder EssentialWired

Manufacturer specification · Original manufacturer description: Wired (standard cable). Wired only; Razer lists no wireless mode or battery. The connector type is not stated on these pages. Shared wired availability is comparable. Manufacturer cable and connector details retain their own scope; no unlisted connector is inferred.

Source 1 Source 2

Explore the full specifications

Choose the grip, then check the connection. Left-side thumb controls are not a mirrored left-handed layout. Check the receiver or USB connection, battery requirements and your preferred shape. DPI is tracking resolution, not an accuracy score; no gaming winner is inferred.

WHAT CHANGES BETWEEN THEM?

Key differences

Full specifications ↓

7 verified differences, most decision-relevant first. All are also drawn in Visual facts above. Missing information stays separate.

Connections

In Visual facts

Logitech MX Master 4Bluetooth Low Energy (5.1); Logi Bolt USB-C receiver included

Razer DeathAdder EssentialWired

Sources

Logitech MX Master 4

Manufacturer specification · Logitech states compatibility with both USB-C and USB-A Bolt receivers; the box contents list a USB-C Bolt receiver.

Logitech UK — MX Master 4 product page and technical specifications

Razer DeathAdder Essential

Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs Razer DeathAdder Essential (RZ01-03850100-R3U1) — Razer US store page and tech specs

Check the exact configuration and source conditions for your use.

Listed controls

In Visual facts

Logitech MX Master 48

Razer DeathAdder Essential5

Sources

Logitech MX Master 4

Manufacturer specification · Logitech support lists Haptic Sense Panel, Gesture, Back, Forward, Top, Wheel and Left/Right.

Logitech UK — MX Master 4 product page and technical specifications Logitech Support — Specification - MX Master 4

Razer DeathAdder Essential

Manufacturer specification · Razer lists 5 independently programmable Hyperesponse buttons.

Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs Razer DeathAdder Essential — Razer UK product overview

Physical clicks, programmable wheel actions and optional side buttons can produce different counts. Read each configuration; a larger count does not establish better control or programmability.

Scroll controls

In Visual facts

Logitech MX Master 4MagSpeed wheel with SmartShift; thumb wheel

Razer DeathAdder EssentialStandard scroll wheel; no tilt-click

Sources

Logitech MX Master 4

Manufacturer specification · Original manufacturer description: MagSpeed wheel with SmartShift: ratchet mode and hyper-fast mode (up to 1,000 lines per second); thumb wheel for horizontal scrolling. The exact feature inventory establishes the thumb wheel’s horizontal scrolling. The up-to1000-lines-per-second figure is a manufacturer claim; electromagnetic/mode details retain their original source scope. Shared named controls do not establish tested speed or accuracy superiority.

Logitech UK — MX Master 4 product page and technical specifications

Razer DeathAdder Essential

Manufacturer specification

Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs

Check the exact configuration and source conditions for your use.

Maximum sensitivity

In Visual facts

Logitech MX Master 48000 DPI

Razer DeathAdder Essential6400 DPI

Sources

Logitech MX Master 4

Manufacturer specification · Adjustable in 50 DPI increments.

Logitech UK — MX Master 4 product page and technical specifications Logitech Support — Specification - MX Master 4

Razer DeathAdder Essential

Manufacturer specification

Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs Razer DeathAdder Essential (RZ01-03850100-R3U1) — Razer US store page and tech specs

Sensor settings and manufacturer tracking limits describe capabilities, not independently measured accuracy or gaming performance. Preserve each test surface and software condition.

Tracking technology

In Visual facts

Logitech MX Master 4Darkfield high precision

Razer DeathAdder EssentialOptical

Sources

Logitech MX Master 4

Manufacturer specification · Original manufacturer description: Darkfield high precision sensor. Logitech does not publish a sensor part number. Logitech says it works on virtually any surface, even glass, with a 4 mm minimum glass thickness. This identifies the advertised tracking technology; it does not identify a hardware sensor part or establish a hardware-generation difference from another Darkfield description.

Logitech UK — MX Master 4 product page and technical specifications Logitech Support — Specification - MX Master 4

Razer DeathAdder Essential

Manufacturer specification · Razer names the sensor only as optical; no model is given. Original manufacturer description: 6,400 DPI optical sensor. This identifies optical tracking, not a named sensor model. Model-specific hardware, accuracy and performance are not inferred.

Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs Razer DeathAdder Essential — Razer UK product overview

Check the exact configuration and source conditions for your use.

Body width

In Visual facts

Logitech MX Master 488.35 mm

Razer DeathAdder Essential72.7 mm

Sources

Logitech MX Master 4

Manufacturer specification · Manufacturer-listed Width; the source does not identify the measurement basis or a distinct grip-width measurement.

Logitech UK — MX Master 4 product page and technical specifications

Razer DeathAdder Essential

Manufacturer specification · Razer's listed width; Razer does not state the measurement basis.

Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs

A size or weight trade-off; it does not establish the better product.

Show 1 more verified difference

Dimensions

In Visual facts

Logitech MX Master 4128.15 × 88.35 × 50.8 mm (manufacturer-labelled height × width × depth)

Razer DeathAdder Essential127.3 × 72.7 × 42.8 mm (length × width × height)

Sources

Logitech MX Master 4

Manufacturer specification · Preserves the manufacturer’s exact height, width and depth labels. No manufacturer dimension diagram establishes an alternative front-to-back length or vertical-height axis mapping.

Logitech UK — MX Master 4 product page and technical specifications Logitech Support — Specification - MX Master 4

Razer DeathAdder Essential

Manufacturer specification · Mouse body as listed by Razer; cable excluded.

Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs Razer DeathAdder Essential (RZ01-03850100-R3U1) — Razer US store page and tech specs

A size or weight trade-off; it does not establish the better product.

Configuration & compatibility details (1)

Hand orientation

Logitech MX Master 4Right-handed sculpted shell; thumb wheel, thumb buttons and Haptic Sense Panel on the left side

Razer DeathAdder EssentialRight-handed ergonomic shape; side buttons on the left

Sources

Logitech MX Master 4

Manufacturer specification · From the manufacturer's product views; Logitech's tables have no explicit hand-orientation field.

Logitech UK — MX Master 4 product page and technical specifications

Razer DeathAdder Essential

Manufacturer specification · Razer's stated form factor; side-button position from the official product views. Not a grip or comfort test.

Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs Razer DeathAdder Essential — Razer UK product overview

Both sources describe right-hand controls. Their wording does not establish a different hand orientation or identical shape and comfort.

Missing or non-comparable evidence (23)

Main switch technology

Logitech MX Master 4Not verified

Razer DeathAdder EssentialRazer Mechanical Switches

Sources

Logitech MX Master 4

No source recorded for this side.

Razer DeathAdder Essential

Manufacturer specification

Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs Razer DeathAdder Essential — Razer UK product overview

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

Sensor model

Logitech MX Master 4Not verified

Razer DeathAdder EssentialNot verified

Sources

Logitech MX Master 4

The individually read exact manufacturer/source inventory does not identify a hardware sensor model. · Manufacturer specification · Darkfield high precision tracking technology and supported sensitivity/glass claims remain separately represented.

Logitech UK — MX Master 4 product page and technical specifications Logitech Support — Specification - MX Master 4

Razer DeathAdder Essential

The individually reviewed exact source inventory does not identify a sensor model. The published method or description is retained separately. · Manufacturer specification

Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs Razer DeathAdder Essential — Razer UK product overview

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

Maximum report rate

Logitech MX Master 4125 Hz

Razer DeathAdder EssentialNot verified

Sources

Logitech MX Master 4

Manufacturer specification · Logitech support lists 125 Hz (8 ms) for both the USB receiver and Bluetooth.

Logitech Support — Specification - MX Master 4

Razer DeathAdder Essential

Razer does not list a polling rate for this model. · Manufacturer specification · Neither the tech specs nor the overview state a report rate.

Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs

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

Onboard memory

Logitech MX Master 4Not verified

Razer DeathAdder EssentialNo

Sources

Logitech MX Master 4

No source recorded for this side.

Razer DeathAdder Essential

Manufacturer specification · Razer lists no onboard memory profiles.

Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs Razer DeathAdder Essential (RZ01-03850100-R3U1) — Razer US store page and tech specs

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

Customisation software

Logitech MX Master 4Logi Options+

Razer DeathAdder EssentialNot verified

Sources

Logitech MX Master 4

Manufacturer specification · Original source-supported software description retained: Logi Options+ (button shortcuts, tracking speed, app-specific presets, Smart Actions, plugins, Actions Ring, Flow file sharing and copy-paste across devices); basic support in Logi Tune. Shared primary app identity does not imply identical software features. Specifically stated Haptic Sense Panel, haptic/OS/firmware conditions and multi-device/Actions Ring functions remain in their separate existing fields and editorial. The predecessor source does not establish absence of the extra listed software functions. The September source plan for Premiere Pro is not verified current availability.

Logitech UK — MX Master 4 product page and technical specifications

Razer DeathAdder Essential

No source recorded for this side.

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

Battery

Logitech MX Master 4Rechargeable 650 mAh; up to 70 days per full charge; three hours from a one-minute charge

Razer DeathAdder EssentialNot verified

Sources

Logitech MX Master 4

Manufacturer specification · Manufacturer claims; battery not user-replaceable.

Logitech UK — MX Master 4 product page and technical specifications Logitech Support — Specification - MX Master 4

Razer DeathAdder Essential

No source recorded for this side.

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

Lighting

Logitech MX Master 4Not verified

Razer DeathAdder EssentialSingle-colour green lighting; no RGB

Sources

Logitech MX Master 4

No source recorded for this side.

Razer DeathAdder Essential

Manufacturer specification

Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs Razer DeathAdder Essential (RZ01-03850100-R3U1) — Razer US store page and tech specs

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

Cable length

Logitech MX Master 4Not verified

Razer DeathAdder Essential1.8 m

Sources

Logitech MX Master 4

No source recorded for this side.

Razer DeathAdder Essential

Manufacturer specification · Razer lists a standard cable, 1.8 m.

Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs Razer DeathAdder Essential (RZ01-03850100-R3U1) — Razer US store page and tech specs

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

Charging connector

Logitech MX Master 4USB-C

Razer DeathAdder EssentialNot verified

Sources

Logitech MX Master 4

Manufacturer specification · Charging cable not included.

Logitech UK — MX Master 4 product page and technical specifications

Razer DeathAdder Essential

No source recorded for this side.

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

Supported operating systems

Logitech MX Master 4Bluetooth: Windows 11+, macOS 13+, iPadOS 15+, Android 12+, Linux and ChromeOS basic functions; Bolt receiver (USB-C or USB-A port required): Windows 10/11+, macOS 13+, Linux, ChromeOS

Razer DeathAdder EssentialNot verified

Sources

Logitech MX Master 4

Manufacturer specification · Options+ customisation on Windows and macOS; basic functions without software elsewhere.

Logitech UK — MX Master 4 product page and technical specifications

Razer DeathAdder Essential

No source recorded for this side.

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

Glide feet

Logitech MX Master 4Not verified

Razer DeathAdder EssentialStandard stock feet

Sources

Logitech MX Master 4

No source recorded for this side.

Razer DeathAdder Essential

Manufacturer specification · Razer does not state the material.

Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs

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

Haptic feedback

Logitech MX Master 4Haptic Sense Panel; customisable haptics for Options+ features (Actions Ring, Smart Actions, Gestures) and plugins for Adobe Photoshop, Adobe Lightroom Desktop and Zoom; native Advanced Haptics integration on Windows11

Razer DeathAdder EssentialNot verified

Sources

Logitech MX Master 4

Manufacturer specification · Options+ features and plugin customisation require Logi Options+ on Windows/macOS. The actual26September2026 technical inventory lists Adobe Premiere Pro as “Coming in October”; current availability is unverified. Native Windows haptics require the Windows11 update from the end of March2026 onwards; the feature instructions say to update mouse firmware through Options+ device settings, and control native haptics in Windows OS settings. No particular firmware version or independently tested app coverage is established.

Logitech UK — MX Master 4 product page and technical specifications Logitech Support — Specification - MX Master 4

Razer DeathAdder Essential

No source recorded for this side.

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

Listed package

Logitech MX Master 4Mouse; USB-C Bolt receiver; user documentation

Razer DeathAdder EssentialNot verified

Sources

Logitech MX Master 4

Manufacturer specification · USB-C charging cable not included.

Logitech UK — MX Master 4 product page and technical specifications

Razer DeathAdder Essential

No source recorded for this side.

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

Multi-device pairing

Logitech MX Master 4Up to three devices; switch via the Easy-Switch buttons on the mouse or the Actions Ring

Razer DeathAdder EssentialNot verified

Sources

Logitech MX Master 4

Manufacturer specification · File transfer across devices uses Logi Options+.

Logitech UK — MX Master 4 product page and technical specifications

Razer DeathAdder Essential

No source recorded for this side.

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

Click noise

Logitech MX Master 4Quiet Clicks: 90% less left/right click Sound Power Level than MX Master 3

Razer DeathAdder EssentialNot verified

Sources

Logitech MX Master 4

Manufacturer specification · Logitech comparison with MX Master 3.

Logitech UK — MX Master 4 product page and technical specifications

Razer DeathAdder Essential

No source recorded for this side.

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

Minimum sensitivity

Logitech MX Master 4200 DPI

Razer DeathAdder EssentialNot verified

Sources

Logitech MX Master 4

Manufacturer specification · Adjustable in 50 DPI increments; nominal 1,000 DPI.

Logitech UK — MX Master 4 product page and technical specifications Logitech Support — Specification - MX Master 4

Razer DeathAdder Essential

Razer does not list a minimum sensitivity for this model. · Manufacturer specification · Razer lists only the 6,400 DPI maximum.

Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs

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

Claimed main-switch durability

Logitech MX Master 4Not verified

Razer DeathAdder Essential10 million clicks

Sources

Logitech MX Master 4

No source recorded for this side.

Razer DeathAdder Essential

Manufacturer specification · Razer's lifecycle rating for the mechanical switches.

Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs

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

Published acceleration threshold

Logitech MX Master 4Not verified

Razer DeathAdder Essential30 G

Sources

Logitech MX Master 4

No source recorded for this side.

Razer DeathAdder Essential

Manufacturer specification · Razer's maximum acceleration rating; test surface not stated.

Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs

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

Published tracking speed

Logitech MX Master 4Not verified

Razer DeathAdder Essential220 IPS

Sources

Logitech MX Master 4

No source recorded for this side.

Razer DeathAdder Essential

Manufacturer specification · Razer's maximum speed rating; test surface not stated.

Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs

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

Limited hardware warranty

Logitech MX Master 4Conflicting evidence

Razer DeathAdder EssentialNot verified

Sources

Logitech MX Master 4

Logitech UK lists a 2-year limited hardware warranty; Logitech US lists 1 year. Regional terms differ. · Manufacturer specification

Logitech UK — MX Master 4 product page and technical specifications Logitech US — MX Master 4 product page and technical specifications

Razer DeathAdder Essential

No source recorded for this side.

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

Wireless range

Logitech MX Master 410 m

Razer DeathAdder EssentialNot verified

Sources

Logitech MX Master 4

Manufacturer specification

Logitech UK — MX Master 4 product page and technical specifications

Razer DeathAdder Essential

No source recorded for this side.

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

Body length

Logitech MX Master 4Not verified

Razer DeathAdder Essential127.3 mm

Sources

Logitech MX Master 4

The source labels its first dimension Height and provides no diagram establishing front-to-back body length. · Manufacturer specification · The raw manufacturer-labelled H/W/D triplet remains preserved in Dimensions. Do not rename the listed Height as Length or use it as a typed length input.

Logitech UK — MX Master 4 product page and technical specifications

Razer DeathAdder Essential

Manufacturer specification · Mouse body length; cable excluded.

Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs

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

Weight

Logitech MX Master 4150 g

Razer DeathAdder Essential96 g

Sources

Logitech MX Master 4

Manufacturer specification · Manufacturer-listed mouse weight.

Logitech UK — MX Master 4 product page and technical specifications Logitech Support — Specification - MX Master 4

Razer DeathAdder Essential

Manufacturer specification · Manufacturer-listed weight; Razer does not state whether the cable is included.

Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs Razer DeathAdder Essential (RZ01-03850100-R3U1) — Razer US store page and tech specs

The manufacturer sources do not establish the same cable weighing basis. Both published masses remain visible with their conditions, but are not ranked.

0 shared fields have the same recorded value.

WHAT EACH CHOICE ASKS OF YOU

What it brings and what to check

Logitech MX Master 4

What it brings

Eight buttons, including a thumb-side Haptic Sense Panel and gesture button, plus a MagSpeed wheel with SmartShift and a horizontal thumb wheel.
Manufacturer source Manufacturer source
Two ways to connect out of the box: Bluetooth Low Energy 5.1 or the included USB-C Bolt receiver (USB-A Bolt receivers are also compatible), with up to three paired devices switched by Easy-Switch buttons or the Actions Ring.
Manufacturer source
Logitech rates the 650 mAh battery at up to 70 days per charge, with three hours of use from a one-minute charge.
Manufacturer source Manufacturer source
Logitech lists haptic feedback for Actions Ring, Smart Actions and Gestures in Logi Options+, plus plugins for Photoshop, Lightroom Desktop and Zoom. Native Windows11 Advanced Haptics requires the update from the end of March2026 onwards and updating mouse firmware through Options+; native controls are in Windows settings.
Manufacturer source
Logitech states its Quiet Clicks have 90% less left and right click Sound Power Level than the MX Master 3.
Manufacturer source

What to check

It weighs150g and Logitech lists Width88.35mm, with a shape sculpted for the right hand; the USB-C charging cable is not included. Its full dimensions retain Logitech’s original Height×Width×Depth labels.
Manufacturer source Manufacturer source
Logitech support lists a 125 Hz report rate over both Bluetooth and the receiver; it is a productivity mouse, not a high-report-rate gaming design.
Manufacturer source
Full haptic and button customisation relies on Logi Options+ on Windows and macOS; Linux, ChromeOS, iPadOS 15+ and Android 12+ get basic functions without software. Over Bluetooth, Logitech lists Windows 11 or later and macOS 13 or later; with the Bolt receiver, Windows 10, 11 or later and macOS 13 or later.
Manufacturer source

Razer DeathAdder Essential

What it brings

It keeps the classic DeathAdder right-handed ergonomic shape with two left side buttons and five independently programmable buttons.
Manufacturer source Manufacturer source
Razer lists a 1.8 m cable and simple single-colour green lighting, with the same specifications on its UK and US store pages.
Manufacturer source Manufacturer source

What to check

The specifications are modest: 6,400 DPI, 220 IPS and 30 G tracking ratings, mechanical switches rated for 10 million clicks, standard stock feet and no onboard memory.
Manufacturer source
Razer lists a weight of 96 g; the mouse is wired with a right-handed form factor, and Razer publishes no polling rate or minimum DPI.
Manufacturer source Manufacturer source

COMPARE THE DETAILS

Full specifications

How we verify

Differences only

31 of 31 specifications Sources in each row

Source-backed specifications for Logitech MX Master 4 and Razer DeathAdder Essential
Specification	Logitech MX Master 4	Razer DeathAdder Essential

WeightDifferent Sources Logitech MX Master 4 Manufacturer specification · Manufacturer-listed mouse weight. Logitech UK — MX Master 4 product page and technical specifications Logitech Support — Specification - MX Master 4 Razer DeathAdder Essential Manufacturer specification · Manufacturer-listed weight; Razer does not state whether the cable is included. Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs Razer DeathAdder Essential (RZ01-03850100-R3U1) — Razer US store page and tech specs	150 g	96 g
DimensionsDifferent Sources Logitech MX Master 4 Manufacturer specification · Preserves the manufacturer’s exact height, width and depth labels. No manufacturer dimension diagram establishes an alternative front-to-back length or vertical-height axis mapping. Logitech UK — MX Master 4 product page and technical specifications Logitech Support — Specification - MX Master 4 Razer DeathAdder Essential Manufacturer specification · Mouse body as listed by Razer; cable excluded. Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs Razer DeathAdder Essential (RZ01-03850100-R3U1) — Razer US store page and tech specs	128.15 × 88.35 × 50.8 mm (manufacturer-labelled height × width × depth)	127.3 × 72.7 × 42.8 mm (length × width × height)
Body length Sources Logitech MX Master 4 The source labels its first dimension Height and provides no diagram establishing front-to-back body length. · Manufacturer specification · The raw manufacturer-labelled H/W/D triplet remains preserved in Dimensions. Do not rename the listed Height as Length or use it as a typed length input. Logitech UK — MX Master 4 product page and technical specifications Razer DeathAdder Essential Manufacturer specification · Mouse body length; cable excluded. Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs	Not listed by the manufacturer	127.3 mm
Body widthDifferent Sources Logitech MX Master 4 Manufacturer specification · Manufacturer-listed Width; the source does not identify the measurement basis or a distinct grip-width measurement. Logitech UK — MX Master 4 product page and technical specifications Razer DeathAdder Essential Manufacturer specification · Razer's listed width; Razer does not state the measurement basis. Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs	88.35 mm	72.7 mm
Hand orientationDifferent Sources Logitech MX Master 4 Manufacturer specification · From the manufacturer's product views; Logitech's tables have no explicit hand-orientation field. Logitech UK — MX Master 4 product page and technical specifications Razer DeathAdder Essential Manufacturer specification · Razer's stated form factor; side-button position from the official product views. Not a grip or comfort test. Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs Razer DeathAdder Essential — Razer UK product overview	Right-handed sculpted shell; thumb wheel, thumb buttons and Haptic Sense Panel on the left side	Right-handed ergonomic shape; side buttons on the left
Glide feet Sources Logitech MX Master 4 No source recorded. Razer DeathAdder Essential Manufacturer specification · Razer does not state the material. Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs	Not provided	Standard stock feet

Tracking technologyDifferent Sources Logitech MX Master 4 Manufacturer specification · Original manufacturer description: Darkfield high precision sensor. Logitech does not publish a sensor part number. Logitech says it works on virtually any surface, even glass, with a 4 mm minimum glass thickness. This identifies the advertised tracking technology; it does not identify a hardware sensor part or establish a hardware-generation difference from another Darkfield description. Logitech UK — MX Master 4 product page and technical specifications Logitech Support — Specification - MX Master 4 Razer DeathAdder Essential Manufacturer specification · Razer names the sensor only as optical; no model is given. Original manufacturer description: 6,400 DPI optical sensor. This identifies optical tracking, not a named sensor model. Model-specific hardware, accuracy and performance are not inferred. Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs Razer DeathAdder Essential — Razer UK product overview	Darkfield high precision	Optical
Minimum sensitivity Sources Logitech MX Master 4 Manufacturer specification · Adjustable in 50 DPI increments; nominal 1,000 DPI. Logitech UK — MX Master 4 product page and technical specifications Logitech Support — Specification - MX Master 4 Razer DeathAdder Essential Razer does not list a minimum sensitivity for this model. · Manufacturer specification · Razer lists only the 6,400 DPI maximum. Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs	200 DPI	Not provided
Maximum sensitivityDifferent Sources Logitech MX Master 4 Manufacturer specification · Adjustable in 50 DPI increments. Logitech UK — MX Master 4 product page and technical specifications Logitech Support — Specification - MX Master 4 Razer DeathAdder Essential Manufacturer specification Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs Razer DeathAdder Essential (RZ01-03850100-R3U1) — Razer US store page and tech specs	8000 DPI	6400 DPI
Maximum report rate Sources Logitech MX Master 4 Manufacturer specification · Logitech support lists 125 Hz (8 ms) for both the USB receiver and Bluetooth. Logitech Support — Specification - MX Master 4 Razer DeathAdder Essential Razer does not list a polling rate for this model. · Manufacturer specification · Neither the tech specs nor the overview state a report rate. Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs	125 Hz	Not provided
Published tracking speed Sources Logitech MX Master 4 No source recorded. Razer DeathAdder Essential Manufacturer specification · Razer's maximum speed rating; test surface not stated. Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs	Not provided	220 IPS
Published acceleration threshold Sources Logitech MX Master 4 No source recorded. Razer DeathAdder Essential Manufacturer specification · Razer's maximum acceleration rating; test surface not stated. Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs	Not provided	30 G

Listed controlsDifferent Sources Logitech MX Master 4 Manufacturer specification · Logitech support lists Haptic Sense Panel, Gesture, Back, Forward, Top, Wheel and Left/Right. Logitech UK — MX Master 4 product page and technical specifications Logitech Support — Specification - MX Master 4 Razer DeathAdder Essential Manufacturer specification · Razer lists 5 independently programmable Hyperesponse buttons. Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs Razer DeathAdder Essential — Razer UK product overview	8	5
Scroll controlsDifferent Sources Logitech MX Master 4 Manufacturer specification · Original manufacturer description: MagSpeed wheel with SmartShift: ratchet mode and hyper-fast mode (up to 1,000 lines per second); thumb wheel for horizontal scrolling. The exact feature inventory establishes the thumb wheel’s horizontal scrolling. The up-to1000-lines-per-second figure is a manufacturer claim; electromagnetic/mode details retain their original source scope. Shared named controls do not establish tested speed or accuracy superiority. Logitech UK — MX Master 4 product page and technical specifications Razer DeathAdder Essential Manufacturer specification Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs	MagSpeed wheel with SmartShift; thumb wheel	Standard scroll wheel; no tilt-click
Main switch technology Sources Logitech MX Master 4 No source recorded. Razer DeathAdder Essential Manufacturer specification Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs Razer DeathAdder Essential — Razer UK product overview	Not provided	Razer Mechanical Switches
Claimed main-switch durability Sources Logitech MX Master 4 No source recorded. Razer DeathAdder Essential Manufacturer specification · Razer's lifecycle rating for the mechanical switches. Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs	Not provided	10 million clicks

ConnectionsDifferent Sources Logitech MX Master 4 Manufacturer specification · Logitech states compatibility with both USB-C and USB-A Bolt receivers; the box contents list a USB-C Bolt receiver. Logitech UK — MX Master 4 product page and technical specifications Razer DeathAdder Essential Manufacturer specification · Original manufacturer description: Wired (standard cable). Wired only; Razer lists no wireless mode or battery. The connector type is not stated on these pages. Shared wired availability is comparable. Manufacturer cable and connector details retain their own scope; no unlisted connector is inferred. Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs Razer DeathAdder Essential (RZ01-03850100-R3U1) — Razer US store page and tech specs	Bluetooth Low Energy (5.1); Logi Bolt USB-C receiver included	Wired
Battery Sources Logitech MX Master 4 Manufacturer specification · Manufacturer claims; battery not user-replaceable. Logitech UK — MX Master 4 product page and technical specifications Logitech Support — Specification - MX Master 4 Razer DeathAdder Essential No source recorded.	Rechargeable 650 mAh; up to 70 days per full charge; three hours from a one-minute charge	Not provided
Charging connector Sources Logitech MX Master 4 Manufacturer specification · Charging cable not included. Logitech UK — MX Master 4 product page and technical specifications Razer DeathAdder Essential No source recorded.	USB-C	Not provided
Wireless range Sources Logitech MX Master 4 Manufacturer specification Logitech UK — MX Master 4 product page and technical specifications Razer DeathAdder Essential No source recorded.	10 m	Not provided
Cable length Sources Logitech MX Master 4 No source recorded. Razer DeathAdder Essential Manufacturer specification · Razer lists a standard cable, 1.8 m. Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs Razer DeathAdder Essential (RZ01-03850100-R3U1) — Razer US store page and tech specs	Not provided	1.8 m

Customisation software Sources Logitech MX Master 4 Manufacturer specification · Original source-supported software description retained: Logi Options+ (button shortcuts, tracking speed, app-specific presets, Smart Actions, plugins, Actions Ring, Flow file sharing and copy-paste across devices); basic support in Logi Tune. Shared primary app identity does not imply identical software features. Specifically stated Haptic Sense Panel, haptic/OS/firmware conditions and multi-device/Actions Ring functions remain in their separate existing fields and editorial. The predecessor source does not establish absence of the extra listed software functions. The September source plan for Premiere Pro is not verified current availability. Logitech UK — MX Master 4 product page and technical specifications Razer DeathAdder Essential No source recorded.	Logi Options+	Not provided
Onboard memory Sources Logitech MX Master 4 No source recorded. Razer DeathAdder Essential Manufacturer specification · Razer lists no onboard memory profiles. Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs Razer DeathAdder Essential (RZ01-03850100-R3U1) — Razer US store page and tech specs	Not provided	No
Lighting Sources Logitech MX Master 4 No source recorded. Razer DeathAdder Essential Manufacturer specification Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs Razer DeathAdder Essential (RZ01-03850100-R3U1) — Razer US store page and tech specs	Not provided	Single-colour green lighting; no RGB

Multi-device pairing Sources Logitech MX Master 4 Manufacturer specification · File transfer across devices uses Logi Options+. Logitech UK — MX Master 4 product page and technical specifications Razer DeathAdder Essential No source recorded.	Up to three devices; switch via the Easy-Switch buttons on the mouse or the Actions Ring	Not provided
Click noise Sources Logitech MX Master 4 Manufacturer specification · Logitech comparison with MX Master 3. Logitech UK — MX Master 4 product page and technical specifications Razer DeathAdder Essential No source recorded.	Quiet Clicks: 90% less left/right click Sound Power Level than MX Master 3	Not provided
Haptic feedback Sources Logitech MX Master 4 Manufacturer specification · Options+ features and plugin customisation require Logi Options+ on Windows/macOS. The actual26September2026 technical inventory lists Adobe Premiere Pro as “Coming in October”; current availability is unverified. Native Windows haptics require the Windows11 update from the end of March2026 onwards; the feature instructions say to update mouse firmware through Options+ device settings, and control native haptics in Windows OS settings. No particular firmware version or independently tested app coverage is established. Logitech UK — MX Master 4 product page and technical specifications Logitech Support — Specification - MX Master 4 Razer DeathAdder Essential No source recorded.	Haptic Sense Panel; customisable haptics for Options+ features (Actions Ring, Smart Actions, Gestures) and plugins for Adobe Photoshop, Adobe Lightroom Desktop and Zoom; native Advanced Haptics integration on Windows11	Not provided
Supported operating systems Sources Logitech MX Master 4 Manufacturer specification · Options+ customisation on Windows and macOS; basic functions without software elsewhere. Logitech UK — MX Master 4 product page and technical specifications Razer DeathAdder Essential No source recorded.	Bluetooth: Windows 11+, macOS 13+, iPadOS 15+, Android 12+, Linux and ChromeOS basic functions; Bolt receiver (USB-C or USB-A port required): Windows 10/11+, macOS 13+, Linux, ChromeOS	Not provided
Listed package Sources Logitech MX Master 4 Manufacturer specification · USB-C charging cable not included. Logitech UK — MX Master 4 product page and technical specifications Razer DeathAdder Essential No source recorded.	Mouse; USB-C Bolt receiver; user documentation	Not provided

Show unverified (2)Not verified, not provided or conflicting for both products. Kept for completeness; never counted as a difference.

Specifications without verified values for either product
Limited hardware warranty Sources Logitech MX Master 4 Logitech UK lists a 2-year limited hardware warranty; Logitech US lists 1 year. Regional terms differ. · Manufacturer specification Logitech UK — MX Master 4 product page and technical specifications Logitech US — MX Master 4 product page and technical specifications Razer DeathAdder Essential No source recorded.	Conflicting sources	Not provided
Sensor model Sources Logitech MX Master 4 The individually read exact manufacturer/source inventory does not identify a hardware sensor model. · Manufacturer specification · Darkfield high precision tracking technology and supported sensitivity/glass claims remain separately represented. Logitech UK — MX Master 4 product page and technical specifications Logitech Support — Specification - MX Master 4 Razer DeathAdder Essential The individually reviewed exact source inventory does not identify a sensor model. The published method or description is retained separately. · Manufacturer specification Razer DeathAdder Essential (RZ01-03850100-R3M1) — Razer UK store page and tech specs Razer DeathAdder Essential — Razer UK product overview	Not listed by the manufacturer	Not listed by the manufacturer

First product manufacturer source Second product manufacturer source

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