MICE · YOUR NEXT FACE-OFF

Logitech MX Master 3S Bluetooth Edition vs Logitech Signature Comfort Plus M850 L

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

Compared products

YOUR FIRST CHOICE

Logitech MX Master 3S Bluetooth Edition

Graphite · 910-007501 · UK Bluetooth Edition configuration

Full product profile Official image

Exact model & source notes

The MX Master 3S Bluetooth Edition (UK part 910-007501, Graphite) is Logitech's right-handed productivity mouse sold without a receiver: it pairs over Bluetooth Low Energy (a Logi Bolt receiver can be added separately), and has Quiet Clicks, the MagSpeed scroll wheel, a thumb wheel and seven buttons, tracking at 200–8,000 DPI including on glass of at least 4 mm thickness.

Specifications checked 26 Sept 2026.

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

Manufacturer specifications

WHAT DIFFERS

7Listed controls6

8,000 DPIMaximum sensitivity4,000 DPI

200 DPIMinimum sensitivity400 DPI

3 of 10 verified differences, in the order listed below. Not a rating.

See the 10 verified differences

THE CONTENDER

Logitech Signature Comfort Plus M850 L

Graphite · 910-007715 · UK manufacturer configuration

Full product profile Official image

Exact model & source notes

The Signature Comfort Plus M850 L (UK part 910-007715, Graphite) is a right-handed mouse for home, office and hybrid work that Logitech describes as its first with a palm cushion. It has quiet clicks, six buttons including a DPI button, runs on one AA battery for up to 24 months, and connects over Bluetooth (Bolt receiver sold separately).

Specifications checked 26 Sept 2026.

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

Manufacturer specifications

MX Master 3S Bluetooth Edition UK & US retailers

UK & US price history: no verified listing yet

Signature Comfort Plus M850 L 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 3S Bluetooth EditionBluetooth Low Energy; Logi Bolt compatible with a separately bought Logi Bolt receiver (not included)

Manufacturer specification · Package lists the mouse and user documentation only. Logitech support states the mouse is Logi Bolt compatible and can be connected to a Logi Bolt receiver (not included). Not compatible with Logitech Unifying USB Receiver technology.

Source 1 Source 2 Source 3

Logitech Signature Comfort Plus M850 LBluetooth Low Energy; Logi Bolt USB receiver compatible (not included); up to 3 paired devices

Manufacturer specification · Not compatible with other Logitech receivers; not Unifying-ready.

Source 1

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 ↓

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

Connections

In Visual facts

Logitech MX Master 3S Bluetooth EditionBluetooth Low Energy; Logi Bolt compatible with a separately bought Logi Bolt receiver (not included)

Logitech Signature Comfort Plus M850 LBluetooth Low Energy; Logi Bolt USB receiver compatible (not included); up to 3 paired devices

Sources

Logitech MX Master 3S Bluetooth Edition

Logitech UK — MX Master 3S Bluetooth Edition product page and technical specifications Logitech US — MX Master 3S Bluetooth Edition product page and technical specifications Logitech Support — Specification - MX Master 3S Bluetooth Edition

Logitech Signature Comfort Plus M850 L

Manufacturer specification · Not compatible with other Logitech receivers; not Unifying-ready.

Logitech UK — Signature Comfort Plus M850 L product page and technical specifications

Check the exact configuration and source conditions for your use.

Listed controls

In Visual facts

Logitech MX Master 3S Bluetooth Edition7

Logitech Signature Comfort Plus M850 L6

Sources

Logitech MX Master 3S Bluetooth Edition

Manufacturer specification · Logitech lists left/right click, back/forward, app-switch (gesture), wheel mode-shift and middle click; scroll and thumb wheels are separate.

Logitech UK — MX Master 3S Bluetooth Edition product page and technical specifications

Logitech Signature Comfort Plus M850 L

Manufacturer specification · Left/right click, scroll-wheel middle click, side buttons and DPI button; 4 programmable.

Logitech UK — Signature Comfort Plus M850 L product page and technical specifications

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 3S Bluetooth EditionMagSpeed wheel with SmartShift; thumb wheel

Logitech Signature Comfort Plus M850 LSmartWheel scrolling

Sources

Logitech MX Master 3S Bluetooth Edition

Manufacturer specification · Original manufacturer description: MagSpeed electromagnetic scroll wheel with SmartShift (up to 1,000 lines per second); separate thumb wheel. 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 3S Bluetooth Edition product page and technical specifications

Logitech Signature Comfort Plus M850 L

Manufacturer specification · Original manufacturer description: SmartWheel; virtual horizontal scroll; no thumb wheel. Shared SmartWheel availability is comparable; unlisted counterpart horizontal/thumb-wheel details remain unknown.

Logitech UK — Signature Comfort Plus M850 L product page and technical specifications

Check the exact configuration and source conditions for your use.

Battery

In Visual facts

Logitech MX Master 3S Bluetooth EditionRechargeable Li-Po (500 mAh); up to 70 days on a full charge; one-minute quick charge gives three hours of use

Logitech Signature Comfort Plus M850 L1 × AA alkaline (included, replaceable); up to 24 months over Bolt or Bluetooth

Sources

Logitech MX Master 3S Bluetooth Edition

Manufacturer specification · Logitech notes battery life may vary based on user and computing conditions. The quick charge uses a USB-C cable that is not included.

Logitech UK — MX Master 3S Bluetooth Edition product page and technical specifications Logitech Support — Specification - MX Master 3S Bluetooth Edition

Logitech Signature Comfort Plus M850 L

Manufacturer specification · Actual battery life varies by usage.

Logitech UK — Signature Comfort Plus M850 L product page and technical specifications

Manufacturer claims for the stated mode and equipment. Read each test condition; this is not measured everyday battery life.

Listed package

In Visual facts

Logitech MX Master 3S Bluetooth EditionMouse; user documentation

Logitech Signature Comfort Plus M850 LMouse with 1 × AA battery; user documentation

Sources

Logitech MX Master 3S Bluetooth Edition

Manufacturer specification · No Logi Bolt receiver in this edition.

Logitech Signature Comfort Plus M850 L

Manufacturer specification · No receiver included.

Logitech UK — Signature Comfort Plus M850 L product page and technical specifications

Check the exact configuration and source conditions for your use.

Click noise

In Visual facts

Logitech MX Master 3S Bluetooth EditionQuiet Clicks: 90% less left/right click Sound Power Level than MX Master 3

Logitech Signature Comfort Plus M850 LQuiet clicks

Sources

Logitech MX Master 3S Bluetooth Edition

Manufacturer specification · Logitech comparison with MX Master 3, measured at 1 m.

Logitech UK — MX Master 3S Bluetooth Edition product page and technical specifications

Logitech Signature Comfort Plus M850 L

Manufacturer specification · Logitech publishes no decibel or percentage figure. Original manufacturer description: Quiet clicks (Logitech: less noisy operation). These own claims do not establish a measured noise advantage over another quiet-click mouse.

Logitech UK — Signature Comfort Plus M850 L product page and technical specifications

Check the exact configuration and source conditions for your use.

Show 4 more verified differences

Maximum sensitivity

In Visual facts

Logitech MX Master 3S Bluetooth Edition8000 DPI

Logitech Signature Comfort Plus M850 L4000 DPI

Sources

Logitech MX Master 3S Bluetooth Edition

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

Logitech UK — MX Master 3S Bluetooth Edition product page and technical specifications

Logitech Signature Comfort Plus M850 L

Manufacturer specification

Logitech UK — Signature Comfort Plus M850 L product page and technical specifications

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

Minimum sensitivity

Logitech MX Master 3S Bluetooth Edition200 DPI

Logitech Signature Comfort Plus M850 L400 DPI

Sources

Logitech MX Master 3S Bluetooth Edition

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

Logitech UK — MX Master 3S Bluetooth Edition product page and technical specifications

Logitech Signature Comfort Plus M850 L

Manufacturer specification · Adjustable in 100 DPI increments; nominal 1,000 DPI.

Logitech UK — Signature Comfort Plus M850 L product page and technical specifications

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

Body width

Logitech MX Master 3S Bluetooth Edition84.3 mm

Logitech Signature Comfort Plus M850 L74.3 mm

Sources

Logitech MX Master 3S Bluetooth Edition

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

Logitech UK — MX Master 3S Bluetooth Edition product page and technical specifications Logitech Support — Specification - MX Master 3S Bluetooth Edition

Logitech Signature Comfort Plus M850 L

Manufacturer specification

Logitech UK — Signature Comfort Plus M850 L product page and technical specifications

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

Dimensions

Logitech MX Master 3S Bluetooth Edition124.9 × 84.3 × 51 mm (manufacturer-labelled height × width × depth)

Logitech Signature Comfort Plus M850 L121.8 × 74.3 × 44.2 mm (length × width × height)

Sources

Logitech MX Master 3S Bluetooth Edition

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 3S Bluetooth Edition product page and technical specifications

Logitech Signature Comfort Plus M850 L

Manufacturer specification · Logitech labels these Height 121.8 mm, Width 74.3 mm, Depth 44.2 mm; the first is the front-to-back length in its top-view convention.

Logitech UK — Signature Comfort Plus M850 L product page and technical specifications

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

Configuration & compatibility details (2)

Hand orientation

Logitech MX Master 3S Bluetooth EditionRight-handed sculpted shell; thumb wheel and thumb buttons on the left side

Logitech Signature Comfort Plus M850 LRight

Sources

Logitech MX Master 3S Bluetooth Edition

Manufacturer specification · From the manufacturer's product views, the 'Hand sculpted' description and its side thumb-wheel and thumb-control description.

Logitech UK — MX Master 3S Bluetooth Edition product page and technical specifications

Logitech Signature Comfort Plus M850 L

Manufacturer specification · Sculpted right-hand shape with palm cushion and rubber side grips.

Logitech UK — Signature Comfort Plus M850 L product page and technical specifications

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

Supported operating systems

Logitech MX Master 3S Bluetooth EditionWindows 10/11+, macOS 10.15+, iPadOS 14+, Android 8.0+; Linux and ChromeOS basic functions

Logitech Signature Comfort Plus M850 LBluetooth Low Energy required: Windows 10, 11 or later, macOS 12 or later, Linux, ChromeOS, iPadOS 15 or later, Android 12 or later

Sources

Logitech MX Master 3S Bluetooth Edition

Manufacturer specification · Bluetooth Low Energy required. Basic functions without software on systems other than Windows and macOS. Logitech also lists it as Engineered for Intel® Evo™ Laptops.

Logitech UK — MX Master 3S Bluetooth Edition product page and technical specifications

Logitech Signature Comfort Plus M850 L

Manufacturer specification · Device basic functions are supported without software on systems other than Windows and macOS (Linux, ChromeOS, iPadOS and Android).

Logitech UK — Signature Comfort Plus M850 L product page and technical specifications

These descriptions or measurements differ. Wording alone does not establish a different capability; check the exact configuration.

Missing or non-comparable evidence (11)

Sensor model

Logitech MX Master 3S Bluetooth EditionNot verified

Logitech Signature Comfort Plus M850 LPluto ONE (Logitech Advanced Optical tracking)

Sources

Logitech MX Master 3S Bluetooth Edition

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 3S Bluetooth Edition product page and technical specifications Logitech Support — Specification - MX Master 3S Bluetooth Edition

Logitech Signature Comfort Plus M850 L

Manufacturer specification

Logitech UK — Signature Comfort Plus M850 L product page and technical specifications

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

Maximum report rate

Logitech MX Master 3S Bluetooth EditionNot verified

Logitech Signature Comfort Plus M850 LNot verified

Sources

Logitech MX Master 3S Bluetooth Edition

Logitech does not list a report rate for this model. · Manufacturer specification

Logitech UK — MX Master 3S Bluetooth Edition product page and technical specifications

Logitech Signature Comfort Plus M850 L

Logitech does not list a report rate for this model. · Manufacturer specification

Logitech UK — Signature Comfort Plus M850 L product page and technical specifications

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

Certifications

Logitech MX Master 3S Bluetooth EditionNot verified

Logitech Signature Comfort Plus M850 LCertified for WWCB; Engineered for Intel Evo laptops

Sources

Logitech MX Master 3S Bluetooth Edition

No source recorded for this side.

Logitech Signature Comfort Plus M850 L

Manufacturer specification

Logitech UK — Signature Comfort Plus M850 L product page and technical specifications

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

Charging connector

Logitech MX Master 3S Bluetooth EditionUSB-C

Logitech Signature Comfort Plus M850 LNot verified

Sources

Logitech MX Master 3S Bluetooth Edition

Manufacturer specification · USB-C cable not included (Logitech support specification).

Logitech Support — Specification - MX Master 3S Bluetooth Edition

Logitech Signature Comfort Plus M850 L

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 3S Bluetooth EditionPTFE

Logitech Signature Comfort Plus M850 LNot verified

Sources

Logitech MX Master 3S Bluetooth Edition

Manufacturer specification · Logitech's support specification rates the PTFE feet for a 250 km range.

Logitech Support — Specification - MX Master 3S Bluetooth Edition

Logitech Signature Comfort Plus M850 L

No source recorded for this side.

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

Claimed main-button durability

Logitech MX Master 3S Bluetooth Edition10 million clicks (left / right buttons)

Logitech Signature Comfort Plus M850 LNot verified

Sources

Logitech MX Master 3S Bluetooth Edition

Manufacturer specification

Logitech Support — Specification - MX Master 3S Bluetooth Edition

Logitech Signature Comfort Plus M850 L

No source recorded for this side.

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

Tracking technology

Logitech MX Master 3S Bluetooth EditionDarkfield high precision

Logitech Signature Comfort Plus M850 LNot verified

Sources

Logitech MX Master 3S Bluetooth Edition

Manufacturer specification · Original manufacturer description: Darkfield high precision optical sensor. Logitech does not publish a sensor part number. Logitech says it tracks virtually anywhere, even on 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 3S Bluetooth Edition product page and technical specifications Logitech Support — Specification - MX Master 3S Bluetooth Edition

Logitech Signature Comfort Plus M850 L

No source recorded for this side.

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

Limited hardware warranty

Logitech MX Master 3S Bluetooth EditionConflicting evidence

Logitech Signature Comfort Plus M850 LConflicting evidence

Sources

Logitech MX Master 3S Bluetooth Edition

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

Logitech UK — MX Master 3S Bluetooth Edition product page and technical specifications Logitech US — MX Master 3S Bluetooth Edition product page and technical specifications

Logitech Signature Comfort Plus M850 L

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

Logitech UK — Signature Comfort Plus M850 L product page and technical specifications Logitech US — Signature Comfort Plus M850 L product page and technical specifications

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

Body length

Logitech MX Master 3S Bluetooth EditionNot verified

Logitech Signature Comfort Plus M850 L121.8 mm

Sources

Logitech MX Master 3S Bluetooth Edition

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 3S Bluetooth Edition product page and technical specifications

Logitech Signature Comfort Plus M850 L

Manufacturer specification

Logitech UK — Signature Comfort Plus M850 L product page and technical specifications

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

Weight

Logitech MX Master 3S Bluetooth Edition141 g

Logitech Signature Comfort Plus M850 L107.9 g

Sources

Logitech MX Master 3S Bluetooth Edition

Manufacturer specification · Manufacturer-listed mouse weight.

Logitech UK — MX Master 3S Bluetooth Edition product page and technical specifications

Logitech Signature Comfort Plus M850 L

Manufacturer specification · With the AA battery; receiver not included. 82.9 g without battery.

Logitech UK — Signature Comfort Plus M850 L product page and technical specifications

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

Weight without battery

Logitech MX Master 3S Bluetooth EditionNot verified

Logitech Signature Comfort Plus M850 L82.9 g

Sources

Logitech MX Master 3S Bluetooth Edition

No source recorded for this side.

Logitech Signature Comfort Plus M850 L

Manufacturer specification

Logitech UK — Signature Comfort Plus M850 L product page and technical specifications

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

3 shared fields have the same recorded value.

WHAT EACH CHOICE ASKS OF YOU

What it brings and what to check

Logitech MX Master 3S Bluetooth Edition

What it brings

Seven buttons, a separate thumb wheel and the electromagnetic MagSpeed wheel give many shortcut and scrolling options, customisable in Logi Options+ on Windows and macOS, which also provides Flow for moving the cursor and copying and pasting between computers.
Manufacturer source
The Darkfield sensor is adjustable from 200 to 8,000 DPI in 50 DPI steps, and Logitech says it tracks on glass with a 4 mm minimum thickness.
Manufacturer source
Logitech states its Quiet Clicks have 90% less left and right click Sound Power Level than the MX Master 3, measured at 1 m.
Manufacturer source
Works over Bluetooth with Windows, macOS, iPadOS, Android, Linux and ChromeOS; Logitech rates it for up to 70 days on a full charge and three hours of use from a one-minute USB-C quick charge.
Manufacturer source Manufacturer source

What to check

This edition ships with only the mouse and documentation: no receiver and no USB-C cable. A Logi Bolt receiver must be bought separately to use one, and Unifying receivers are not supported.
Manufacturer source Manufacturer source Manufacturer source
It weighs 141 g and is 84.3 mm wide, with a shape sculpted for the right hand.
Manufacturer source
Logitech does not publish a report rate, and the warranty differs by region (2 years UK, 1 year US).
Manufacturer source Manufacturer source

Logitech Signature Comfort Plus M850 L

What it brings

Right-hand sculpted shape with a palm cushion, thumb rest and rubber side grips, measuring 121.8 × 74.3 mm.
Manufacturer source
Six buttons, including side buttons and a DPI button; four are programmable in Logi Options+ or Logi Tune.
Manufacturer source
One included AA battery rated for up to 24 months, and Easy-Switch pairing with up to three devices.
Manufacturer source
Quiet clicks for less noisy operation, which Logitech positions for shared or flexible workspaces.
Manufacturer source

What to check

No receiver in the box: without Bluetooth you need a separately bought Logi Bolt receiver, and other Logitech USB receivers are not supported.
Manufacturer source
No thumb wheel (horizontal scrolling is virtual), and sensitivity tops out at 4,000 DPI.
Manufacturer source
Right-handed only; Logitech does not publish a report rate.
Manufacturer source

COMPARE THE DETAILS

Full specifications

How we verify

Differences only

26 of 26 specifications Sources in each row

Source-backed specifications for Logitech MX Master 3S Bluetooth Edition and Logitech Signature Comfort Plus M850 L
Specification	Logitech MX Master 3S Bluetooth Edition	Logitech Signature Comfort Plus M850 L

WeightDifferent Sources Logitech MX Master 3S Bluetooth Edition Manufacturer specification · Manufacturer-listed mouse weight. Logitech UK — MX Master 3S Bluetooth Edition product page and technical specifications Logitech Signature Comfort Plus M850 L Manufacturer specification · With the AA battery; receiver not included. 82.9 g without battery. Logitech UK — Signature Comfort Plus M850 L product page and technical specifications	141 g	107.9 g
DimensionsDifferent Sources Logitech MX Master 3S Bluetooth Edition 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 3S Bluetooth Edition product page and technical specifications Logitech Signature Comfort Plus M850 L Manufacturer specification · Logitech labels these Height 121.8 mm, Width 74.3 mm, Depth 44.2 mm; the first is the front-to-back length in its top-view convention. Logitech UK — Signature Comfort Plus M850 L product page and technical specifications	124.9 × 84.3 × 51 mm (manufacturer-labelled height × width × depth)	121.8 × 74.3 × 44.2 mm (length × width × height)
Body length Sources Logitech MX Master 3S Bluetooth Edition 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 3S Bluetooth Edition product page and technical specifications Logitech Signature Comfort Plus M850 L Manufacturer specification Logitech UK — Signature Comfort Plus M850 L product page and technical specifications	Not listed by the manufacturer	121.8 mm
Body widthDifferent Sources Logitech MX Master 3S Bluetooth Edition Manufacturer specification · Manufacturer-listed Width; the source does not identify the measurement basis or a distinct grip-width measurement. Logitech UK — MX Master 3S Bluetooth Edition product page and technical specifications Logitech Support — Specification - MX Master 3S Bluetooth Edition Logitech Signature Comfort Plus M850 L Manufacturer specification Logitech UK — Signature Comfort Plus M850 L product page and technical specifications	84.3 mm	74.3 mm
Hand orientationDifferent Sources Logitech MX Master 3S Bluetooth Edition Manufacturer specification · From the manufacturer's product views, the 'Hand sculpted' description and its side thumb-wheel and thumb-control description. Logitech UK — MX Master 3S Bluetooth Edition product page and technical specifications Logitech Signature Comfort Plus M850 L Manufacturer specification · Sculpted right-hand shape with palm cushion and rubber side grips. Logitech UK — Signature Comfort Plus M850 L product page and technical specifications	Right-handed sculpted shell; thumb wheel and thumb buttons on the left side	Right
Glide feet Sources Logitech MX Master 3S Bluetooth Edition Manufacturer specification · Logitech's support specification rates the PTFE feet for a 250 km range. Logitech Support — Specification - MX Master 3S Bluetooth Edition Logitech Signature Comfort Plus M850 L No source recorded.	PTFE	Not provided
Weight without battery Sources Logitech MX Master 3S Bluetooth Edition No source recorded. Logitech Signature Comfort Plus M850 L Manufacturer specification Logitech UK — Signature Comfort Plus M850 L product page and technical specifications	Not provided	82.9 g

Tracking technology Sources Logitech MX Master 3S Bluetooth Edition Manufacturer specification · Original manufacturer description: Darkfield high precision optical sensor. Logitech does not publish a sensor part number. Logitech says it tracks virtually anywhere, even on 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 3S Bluetooth Edition product page and technical specifications Logitech Support — Specification - MX Master 3S Bluetooth Edition Logitech Signature Comfort Plus M850 L No source recorded.	Darkfield high precision	Not provided
Minimum sensitivityDifferent Sources Logitech MX Master 3S Bluetooth Edition Manufacturer specification · Adjustable in 50 DPI increments; nominal 1,000 DPI. Logitech UK — MX Master 3S Bluetooth Edition product page and technical specifications Logitech Signature Comfort Plus M850 L Manufacturer specification · Adjustable in 100 DPI increments; nominal 1,000 DPI. Logitech UK — Signature Comfort Plus M850 L product page and technical specifications	200 DPI	400 DPI
Maximum sensitivityDifferent Sources Logitech MX Master 3S Bluetooth Edition Manufacturer specification · Adjustable in 50 DPI increments; nominal 1,000 DPI. Logitech UK — MX Master 3S Bluetooth Edition product page and technical specifications Logitech Signature Comfort Plus M850 L Manufacturer specification Logitech UK — Signature Comfort Plus M850 L product page and technical specifications	8000 DPI	4000 DPI
Sensor model Sources Logitech MX Master 3S Bluetooth Edition 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 3S Bluetooth Edition product page and technical specifications Logitech Support — Specification - MX Master 3S Bluetooth Edition Logitech Signature Comfort Plus M850 L Manufacturer specification Logitech UK — Signature Comfort Plus M850 L product page and technical specifications	Not listed by the manufacturer	Pluto ONE (Logitech Advanced Optical tracking)

Listed controlsDifferent Sources Logitech MX Master 3S Bluetooth Edition Manufacturer specification · Logitech lists left/right click, back/forward, app-switch (gesture), wheel mode-shift and middle click; scroll and thumb wheels are separate. Logitech UK — MX Master 3S Bluetooth Edition product page and technical specifications Logitech Signature Comfort Plus M850 L Manufacturer specification · Left/right click, scroll-wheel middle click, side buttons and DPI button; 4 programmable. Logitech UK — Signature Comfort Plus M850 L product page and technical specifications	7	6
Claimed main-button durability Sources Logitech MX Master 3S Bluetooth Edition Manufacturer specification Logitech Support — Specification - MX Master 3S Bluetooth Edition Logitech Signature Comfort Plus M850 L No source recorded.	10 million clicks (left / right buttons)	Not provided
Scroll controlsDifferent Sources Logitech MX Master 3S Bluetooth Edition Manufacturer specification · Original manufacturer description: MagSpeed electromagnetic scroll wheel with SmartShift (up to 1,000 lines per second); separate thumb wheel. 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 3S Bluetooth Edition product page and technical specifications Logitech Signature Comfort Plus M850 L Manufacturer specification · Original manufacturer description: SmartWheel; virtual horizontal scroll; no thumb wheel. Shared SmartWheel availability is comparable; unlisted counterpart horizontal/thumb-wheel details remain unknown. Logitech UK — Signature Comfort Plus M850 L product page and technical specifications	MagSpeed wheel with SmartShift; thumb wheel	SmartWheel scrolling

ConnectionsDifferent Sources Logitech MX Master 3S Bluetooth Edition Manufacturer specification · Package lists the mouse and user documentation only. Logitech support states the mouse is Logi Bolt compatible and can be connected to a Logi Bolt receiver (not included). Not compatible with Logitech Unifying USB Receiver technology. Logitech UK — MX Master 3S Bluetooth Edition product page and technical specifications Logitech US — MX Master 3S Bluetooth Edition product page and technical specifications Logitech Support — Specification - MX Master 3S Bluetooth Edition Logitech Signature Comfort Plus M850 L Manufacturer specification · Not compatible with other Logitech receivers; not Unifying-ready. Logitech UK — Signature Comfort Plus M850 L product page and technical specifications	Bluetooth Low Energy; Logi Bolt compatible with a separately bought Logi Bolt receiver (not included)	Bluetooth Low Energy; Logi Bolt USB receiver compatible (not included); up to 3 paired devices
BatteryDifferent Sources Logitech MX Master 3S Bluetooth Edition Manufacturer specification · Logitech notes battery life may vary based on user and computing conditions. The quick charge uses a USB-C cable that is not included. Logitech UK — MX Master 3S Bluetooth Edition product page and technical specifications Logitech Support — Specification - MX Master 3S Bluetooth Edition Logitech Signature Comfort Plus M850 L Manufacturer specification · Actual battery life varies by usage. Logitech UK — Signature Comfort Plus M850 L product page and technical specifications	Rechargeable Li-Po (500 mAh); up to 70 days on a full charge; one-minute quick charge gives three hours of use	1 × AA alkaline (included, replaceable); up to 24 months over Bolt or Bluetooth
Charging connector Sources Logitech MX Master 3S Bluetooth Edition Manufacturer specification · USB-C cable not included (Logitech support specification). Logitech Support — Specification - MX Master 3S Bluetooth Edition Logitech Signature Comfort Plus M850 L No source recorded.	USB-C	Not provided
Wireless range Sources Logitech MX Master 3S Bluetooth Edition Manufacturer specification · Range may vary with operating environment and computer setup. Logitech UK — MX Master 3S Bluetooth Edition product page and technical specifications Logitech Signature Comfort Plus M850 L Manufacturer specification Logitech UK — Signature Comfort Plus M850 L product page and technical specifications	10 m	10 m

Customisation software Sources Logitech MX Master 3S Bluetooth Edition Manufacturer specification · Original source-supported software description retained: Logi Options+ (Windows and macOS): button customisation, tracking speed, app-specific customisations, Smart Actions and Flow (cursor, copy and paste across computers). This is the shared primary customisation app, not a complete feature-equivalence claim. The reviewed source does not resolve Tune, Actions Ring, plugin or haptic support for this predecessor; no counterpart absence is inferred from its shorter feature inventory. Logitech UK — MX Master 3S Bluetooth Edition product page and technical specifications Logitech Signature Comfort Plus M850 L Manufacturer specification · Original exact supported software description: Logi Options+; Logi Tune. The exact source additionally names Logi Tune; that positive is retained here. The predecessor source does not resolve Tune support, so omission cannot establish a missing app or capability. Logitech UK — Signature Comfort Plus M850 L product page and technical specifications	Logi Options+	Logi Options+

Click noiseDifferent Sources Logitech MX Master 3S Bluetooth Edition Manufacturer specification · Logitech comparison with MX Master 3, measured at 1 m. Logitech UK — MX Master 3S Bluetooth Edition product page and technical specifications Logitech Signature Comfort Plus M850 L Manufacturer specification · Logitech publishes no decibel or percentage figure. Original manufacturer description: Quiet clicks (Logitech: less noisy operation). These own claims do not establish a measured noise advantage over another quiet-click mouse. Logitech UK — Signature Comfort Plus M850 L product page and technical specifications	Quiet Clicks: 90% less left/right click Sound Power Level than MX Master 3	Quiet clicks
Supported operating systemsDifferent Sources Logitech MX Master 3S Bluetooth Edition Manufacturer specification · Bluetooth Low Energy required. Basic functions without software on systems other than Windows and macOS. Logitech also lists it as Engineered for Intel® Evo™ Laptops. Logitech UK — MX Master 3S Bluetooth Edition product page and technical specifications Logitech Signature Comfort Plus M850 L Manufacturer specification · Device basic functions are supported without software on systems other than Windows and macOS (Linux, ChromeOS, iPadOS and Android). Logitech UK — Signature Comfort Plus M850 L product page and technical specifications	Windows 10/11+, macOS 10.15+, iPadOS 14+, Android 8.0+; Linux and ChromeOS basic functions	Bluetooth Low Energy required: Windows 10, 11 or later, macOS 12 or later, Linux, ChromeOS, iPadOS 15 or later, Android 12 or later
Listed packageDifferent Sources Logitech MX Master 3S Bluetooth Edition Manufacturer specification · No Logi Bolt receiver in this edition. Logitech UK — MX Master 3S Bluetooth Edition product page and technical specifications Logitech US — MX Master 3S Bluetooth Edition product page and technical specifications Logitech Support — Specification - MX Master 3S Bluetooth Edition Logitech Signature Comfort Plus M850 L Manufacturer specification · No receiver included. Logitech UK — Signature Comfort Plus M850 L product page and technical specifications	Mouse; user documentation	Mouse with 1 × AA battery; user documentation
Materials Sources Logitech MX Master 3S Bluetooth Edition Manufacturer specification · The exact UK Graphite910-007501 store claim is27% certified PCR plastic, excluding packaging and printed wiring assembly; the US Graphite/Black page also gives27%. Support separately states “PCR85% in dark colors” without enumerating those colours or the same denominator. Preserve both scoped claims without asserting an established same-basis contradiction or selecting a universal percentage. Logitech UK — MX Master 3S Bluetooth Edition product page and technical specifications Logitech US — MX Master 3S Bluetooth Edition product page and technical specifications Logitech Support — Specification - MX Master 3S Bluetooth Edition Logitech Signature Comfort Plus M850 L Manufacturer specification · Logitech gives no recycled-content percentage on this page. Logitech UK — Signature Comfort Plus M850 L product page and technical specifications	Made with recycled plastic	Made with recycled plastic
Certifications Sources Logitech MX Master 3S Bluetooth Edition No source recorded. Logitech Signature Comfort Plus M850 L Manufacturer specification Logitech UK — Signature Comfort Plus M850 L product page and technical specifications	Not provided	Certified for WWCB; Engineered for Intel Evo laptops

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
Maximum report rate Sources Logitech MX Master 3S Bluetooth Edition Logitech does not list a report rate for this model. · Manufacturer specification Logitech UK — MX Master 3S Bluetooth Edition product page and technical specifications Logitech Signature Comfort Plus M850 L Logitech does not list a report rate for this model. · Manufacturer specification Logitech UK — Signature Comfort Plus M850 L product page and technical specifications	Not listed by the manufacturer	Not listed by the manufacturer
Limited hardware warranty Sources Logitech MX Master 3S Bluetooth Edition Logitech UK lists a 2-year limited hardware warranty; Logitech US lists 1 year. Regional terms differ. · Manufacturer specification Logitech UK — MX Master 3S Bluetooth Edition product page and technical specifications Logitech US — MX Master 3S Bluetooth Edition product page and technical specifications Logitech Signature Comfort Plus M850 L Logitech UK lists a 2-year limited hardware warranty; Logitech US lists 1 year. Regional terms differ. · Manufacturer specification Logitech UK — Signature Comfort Plus M850 L product page and technical specifications Logitech US — Signature Comfort Plus M850 L product page and technical specifications	Conflicting sources	Conflicting sources

First product manufacturer source Second product manufacturer source

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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.