MICE · YOUR NEXT FACE-OFF

Logitech Signature Comfort Plus M850 L vs Logitech G203 LIGHTSYNC

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

Compared products

YOUR FIRST CHOICE

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

WHICH SUITS YOU?

Choose the Signature Comfort Plus M850 L for

A wireless connection

Choose the G203 LIGHTSYNC for

A wired connection

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

See the 9 verified differences

THE CONTENDER

Logitech G203 LIGHTSYNC

Black · 910-005796 · UK manufacturer configuration

Full product profile Official image

Exact model & source notes

The black G203 LIGHTSYNC (910-005796) is a wired USB mouse with an optical sensor up to 8,000 DPI, a 1000 Hz report rate, six programmable buttons and three-zone LIGHTSYNC RGB lighting, at 85 g.

Specifications checked 11 Sept 2026.

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

Manufacturer specifications

Signature Comfort Plus M850 L UK & US retailers

UK & US price history: no verified listing yet

G203 LIGHTSYNC 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 SIDE8 topics

SELECTED TOPIC

01 / 08

Connections

Check the exact configuration and source conditions for your use.

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

Logitech G203 LIGHTSYNCWired

Manufacturer specification · Original manufacturer description: Wired USB. Shared wired availability is comparable. Manufacturer cable and connector details retain their own scope; no unlisted connector is inferred.

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 ↓

9 verified differences, most decision-relevant first. 6 are also drawn in Visual facts above. Missing information stays separate.

Connections

In Visual facts

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

Logitech G203 LIGHTSYNCWired

Sources

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

Logitech G203 LIGHTSYNC

Logitech G203 LIGHTSYNC — manufacturer specifications

Check the exact configuration and source conditions for your use.

Hand orientation

In Visual facts

Logitech Signature Comfort Plus M850 LRight

Logitech G203 LIGHTSYNCSymmetric shell; side buttons on the left only

Sources

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

Logitech G203 LIGHTSYNC

Manufacturer specification · Control layout from the manufacturer's product views.

Logitech G203 LIGHTSYNC — manufacturer specifications

Check the exact configuration and source conditions for your use.

Scroll controls

In Visual facts

Logitech Signature Comfort Plus M850 LSmartWheel scrolling

Logitech G203 LIGHTSYNCWheel scrolling and middle click; no left/right tilt

Sources

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

Logitech G203 LIGHTSYNC

Manufacturer specification · Original exact supported description: Wheel scrolling and middle click; no left/right tilt. Six buttons in total, with no tilt inputs. The exact G102/G203 guide expressly lists Wheel click among six programmed controls, and the manufacturer source explicitly says no tilt. Middle click remains a separately stated positive in these conditions; it is not transferred to the counterpart.

Logitech G203 LIGHTSYNC — manufacturer specifications Logitech / Logicool G203 LIGHTSYNC — launch specification table Logitech G102 | G203 LIGHTSYNC — setup guide

Check the exact configuration and source conditions for your use.

Customisation software

In Visual facts

Logitech Signature Comfort Plus M850 LLogi Options+

Logitech G203 LIGHTSYNCLogitech G HUB

Sources

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

Logitech G203 LIGHTSYNC

Manufacturer specification · G HUB is an optional download (internet required); advanced settings need it.

Logitech G203 LIGHTSYNC — manufacturer specifications

Stored profiles, sensitivity settings and software assignments are different capabilities. An unspecified profile count is not zero; check the software and firmware conditions.

Listed package

In Visual facts

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

Logitech G203 LIGHTSYNCMouse; documentation

Sources

Logitech Signature Comfort Plus M850 L

Manufacturer specification · No receiver included.

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

Logitech G203 LIGHTSYNC

Manufacturer specification · The 2.1 m cable is fixed to the mouse. Original exact model package description: G203 LIGHTSYNC mouse; user documentation. The exact UK package names G203 LIGHTSYNC and User documentation; its2.1m cable is fixed to the mouse. This common item-function value does not claim identical document titles, physical bundles, cable parts or regional warranty entitlements.

Logitech G203 LIGHTSYNC — manufacturer specifications

Check the exact configuration and source conditions for your use.

Maximum sensitivity

In Visual facts

Logitech Signature Comfort Plus M850 L4000 DPI

Logitech G203 LIGHTSYNC8000 DPI

Sources

Logitech Signature Comfort Plus M850 L

Manufacturer specification

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

Logitech G203 LIGHTSYNC

Manufacturer specification

Logitech G203 LIGHTSYNC — manufacturer specifications

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

Show 3 more verified differences

Minimum sensitivity

Logitech Signature Comfort Plus M850 L400 DPI

Logitech G203 LIGHTSYNC200 DPI

Sources

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

Logitech G203 LIGHTSYNC

Manufacturer specification

Logitech G203 LIGHTSYNC — manufacturer 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 Signature Comfort Plus M850 L74.3 mm

Logitech G203 LIGHTSYNC62.1 mm

Sources

Logitech Signature Comfort Plus M850 L

Manufacturer specification

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

Logitech G203 LIGHTSYNC

Manufacturer specification · Overall width, not grip width.

Logitech G203 LIGHTSYNC — manufacturer specifications

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

Dimensions

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

Logitech G203 LIGHTSYNC116.6 × 62.1 × 38.2 mm (length × width × height)

Sources

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

Logitech G203 LIGHTSYNC

Manufacturer specification · Mouse body, length × width × height; cable excluded.

Logitech G203 LIGHTSYNC — manufacturer specifications

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

Small physical differences (1)

Body length

In Visual facts

Logitech Signature Comfort Plus M850 L121.8 mm

Logitech G203 LIGHTSYNC116.6 mm

Sources

Logitech Signature Comfort Plus M850 L

Manufacturer specification

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

Logitech G203 LIGHTSYNC

Manufacturer specification · Mouse body, length × width × height; cable excluded.

Logitech G203 LIGHTSYNC — manufacturer specifications

Check the exact configuration and source conditions for your use.

Configuration & compatibility details (1)

Supported operating systems

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

Logitech G203 LIGHTSYNCUSB port; Windows 7 or later; macOS 10.13 or later; ChromeOS

Sources

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

Logitech G203 LIGHTSYNC

Manufacturer specification · G HUB has its own current system requirements.

Logitech G203 LIGHTSYNC — manufacturer specifications

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

Missing or non-comparable evidence (19)

Main switch technology

Logitech Signature Comfort Plus M850 LNot verified

Logitech G203 LIGHTSYNCNot verified

Sources

Logitech Signature Comfort Plus M850 L

No source recorded for this side.

Logitech G203 LIGHTSYNC

Logitech does not list this for the model. · Manufacturer specification · Logitech does not state the switch type.

Logitech G203 LIGHTSYNC — manufacturer specifications

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

Sensor model / type

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

Logitech G203 LIGHTSYNCNot verified

Sources

Logitech Signature Comfort Plus M850 L

Manufacturer specification

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

Logitech G203 LIGHTSYNC

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

Logitech / Logicool G203 LIGHTSYNC — launch specification table

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

Maximum report rate

Logitech Signature Comfort Plus M850 LNot verified

Logitech G203 LIGHTSYNC1000 Hz

Sources

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

Logitech G203 LIGHTSYNC

Manufacturer specification · 1 ms report interval.

Logitech G203 LIGHTSYNC — manufacturer specifications

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

Onboard profile capacity

Logitech Signature Comfort Plus M850 LNot verified

Logitech G203 LIGHTSYNCNot verified

Sources

Logitech Signature Comfort Plus M850 L

No source recorded for this side.

Logitech G203 LIGHTSYNC

Logitech does not list this for the model. · Manufacturer specification · Logitech does not list a stored-profile count; the five DPI settings are separate.

Logitech G203 LIGHTSYNC — manufacturer specifications

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

Onboard memory

Logitech Signature Comfort Plus M850 LNot verified

Logitech G203 LIGHTSYNCYes

Sources

Logitech Signature Comfort Plus M850 L

No source recorded for this side.

Logitech G203 LIGHTSYNC

Manufacturer specification · Settings saved in G HUB carry to another computer.

Logitech G203 LIGHTSYNC — manufacturer specifications

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

Battery

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

Logitech G203 LIGHTSYNCNot verified

Sources

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

Logitech G203 LIGHTSYNC

No source recorded for this side.

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

Lighting

Logitech Signature Comfort Plus M850 LNot verified

Logitech G203 LIGHTSYNCRGB

Sources

Logitech Signature Comfort Plus M850 L

No source recorded for this side.

Logitech G203 LIGHTSYNC

Manufacturer specification · G HUB supports colour effects, screen sampling and audio-reactive lighting. Published lighting implementation: Three LIGHTSYNC RGB zones. Source-specific tooling, location, modes and effects remain qualified; more detailed wording does not establish another RGB product lacks that implementation.

Logitech G203 LIGHTSYNC — manufacturer specifications Logitech G102 | G203 LIGHTSYNC — setup guide

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

Cable length

Logitech Signature Comfort Plus M850 LNot verified

Logitech G203 LIGHTSYNC2.1 m

Sources

Logitech Signature Comfort Plus M850 L

No source recorded for this side.

Logitech G203 LIGHTSYNC

Manufacturer specification

Logitech G203 LIGHTSYNC — manufacturer specifications

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

Primary-button tensioning

Logitech Signature Comfort Plus M850 LNot verified

Logitech G203 LIGHTSYNCPrimary-button tensioning system

Sources

Logitech Signature Comfort Plus M850 L

No source recorded for this side.

Logitech G203 LIGHTSYNC

Manufacturer specification · Original manufacturer description: Metal-spring button tensioning. Detail absence on a counterpart is not proof of a different mechanism.

Logitech G203 LIGHTSYNC — manufacturer specifications Logitech G203 LIGHTSYNC — launch announcement

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

Certifications

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

Logitech G203 LIGHTSYNCNot verified

Sources

Logitech Signature Comfort Plus M850 L

Manufacturer specification

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

Logitech G203 LIGHTSYNC

No source recorded for this side.

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

On-the-fly DPI settings

Logitech Signature Comfort Plus M850 LNot verified

Logitech G203 LIGHTSYNC5 settings

Sources

Logitech Signature Comfort Plus M850 L

No source recorded for this side.

Logitech G203 LIGHTSYNC

Manufacturer specification · G HUB configures the levels; a button cycles through them.

Logitech G203 LIGHTSYNC — manufacturer specifications

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

RGB lighting zones

Logitech Signature Comfort Plus M850 LNot verified

Logitech G203 LIGHTSYNC3

Sources

Logitech Signature Comfort Plus M850 L

No source recorded for this side.

Logitech G203 LIGHTSYNC

Manufacturer specification · The exact product source explicitly states 3 configurable RGB zones. G HUB supports colour effects, screen sampling and audio-reactive lighting. Published lighting implementation: Three LIGHTSYNC RGB zones. Source-specific tooling, location, modes and effects remain qualified; more detailed wording does not establish another RGB product lacks that implementation. Status indicators are not counted as additional configurable zones.

Logitech G203 LIGHTSYNC — manufacturer specifications Logitech G102 | G203 LIGHTSYNC — setup guide

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

Materials

Logitech Signature Comfort Plus M850 LMade with recycled plastic

Logitech G203 LIGHTSYNCNot verified

Sources

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

Logitech G203 LIGHTSYNC

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 Signature Comfort Plus M850 LQuiet clicks

Logitech G203 LIGHTSYNCNot verified

Sources

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

Logitech G203 LIGHTSYNC

No source recorded for this side.

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

Tracking method

Logitech Signature Comfort Plus M850 LNot verified

Logitech G203 LIGHTSYNCOptical

Sources

Logitech Signature Comfort Plus M850 L

No source recorded for this side.

Logitech G203 LIGHTSYNC

Manufacturer specification · Logitech does not name the sensor model. Original manufacturer description: Optical tracking. This identifies optical tracking, not a named sensor model. Model-specific hardware, accuracy and performance are not inferred.

Logitech / Logicool G203 LIGHTSYNC — launch specification table

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

Limited hardware warranty

Logitech Signature Comfort Plus M850 LConflicting evidence

Logitech G203 LIGHTSYNCNot verified

Sources

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

Logitech G203 LIGHTSYNC

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 Signature Comfort Plus M850 L10 m

Logitech G203 LIGHTSYNCNot verified

Sources

Logitech Signature Comfort Plus M850 L

Manufacturer specification

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

Logitech G203 LIGHTSYNC

No source recorded for this side.

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

Weight

Logitech Signature Comfort Plus M850 L107.9 g

Logitech G203 LIGHTSYNC85 g

Sources

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

Logitech G203 LIGHTSYNC

Manufacturer specification · Manufacturer-listed mouse weight.

Logitech G203 LIGHTSYNC — manufacturer 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 Signature Comfort Plus M850 L82.9 g

Logitech G203 LIGHTSYNCNot verified

Sources

Logitech Signature Comfort Plus M850 L

Manufacturer specification

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

Logitech G203 LIGHTSYNC

No source recorded for this side.

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

1 shared field has the same recorded value.

WHAT EACH CHOICE ASKS OF YOU

What it brings and what to check

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

Logitech G203 LIGHTSYNC

What it brings

G HUB configures the six buttons, five DPI levels from 200 to 8,000 DPI and three RGB zones with screen- or audio-reactive effects, and saves settings to onboard memory.
Manufacturer source Manufacturer source

What to check

The 2.1 m cable is fixed, the thumb buttons are on the left side only, and the scroll wheel has no tilt.
Manufacturer source 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 Signature Comfort Plus M850 L and Logitech G203 LIGHTSYNC
Specification	Logitech Signature Comfort Plus M850 L	Logitech G203 LIGHTSYNC

WeightDifferent Sources 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 Logitech G203 LIGHTSYNC Manufacturer specification · Manufacturer-listed mouse weight. Logitech G203 LIGHTSYNC — manufacturer specifications	107.9 g	85 g
Weight without battery Sources Logitech Signature Comfort Plus M850 L Manufacturer specification Logitech UK — Signature Comfort Plus M850 L product page and technical specifications Logitech G203 LIGHTSYNC No source recorded.	82.9 g	Not provided
DimensionsDifferent Sources 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 Logitech G203 LIGHTSYNC Manufacturer specification · Mouse body, length × width × height; cable excluded. Logitech G203 LIGHTSYNC — manufacturer specifications	121.8 × 74.3 × 44.2 mm (length × width × height)	116.6 × 62.1 × 38.2 mm (length × width × height)
Body lengthDifferent Sources Logitech Signature Comfort Plus M850 L Manufacturer specification Logitech UK — Signature Comfort Plus M850 L product page and technical specifications Logitech G203 LIGHTSYNC Manufacturer specification · Mouse body, length × width × height; cable excluded. Logitech G203 LIGHTSYNC — manufacturer specifications	121.8 mm	116.6 mm
Body widthDifferent Sources Logitech Signature Comfort Plus M850 L Manufacturer specification Logitech UK — Signature Comfort Plus M850 L product page and technical specifications Logitech G203 LIGHTSYNC Manufacturer specification · Overall width, not grip width. Logitech G203 LIGHTSYNC — manufacturer specifications	74.3 mm	62.1 mm
Hand orientationDifferent Sources 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 Logitech G203 LIGHTSYNC Manufacturer specification · Control layout from the manufacturer's product views. Logitech G203 LIGHTSYNC — manufacturer specifications	Right	Symmetric shell; side buttons on the left only

Sensor model / type Sources Logitech Signature Comfort Plus M850 L Manufacturer specification Logitech UK — Signature Comfort Plus M850 L product page and technical specifications Logitech G203 LIGHTSYNC The individually reviewed exact source inventory does not identify a sensor model. The published method or description is retained separately. · Manufacturer specification Logitech / Logicool G203 LIGHTSYNC — launch specification table	Pluto ONE (Logitech Advanced Optical tracking)	Not listed by the manufacturer
Minimum sensitivityDifferent Sources 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 Logitech G203 LIGHTSYNC Manufacturer specification Logitech G203 LIGHTSYNC — manufacturer specifications	400 DPI	200 DPI
Maximum sensitivityDifferent Sources Logitech Signature Comfort Plus M850 L Manufacturer specification Logitech UK — Signature Comfort Plus M850 L product page and technical specifications Logitech G203 LIGHTSYNC Manufacturer specification Logitech G203 LIGHTSYNC — manufacturer specifications	4000 DPI	8000 DPI
Maximum report rate Sources 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 Logitech G203 LIGHTSYNC Manufacturer specification · 1 ms report interval. Logitech G203 LIGHTSYNC — manufacturer specifications	Not listed by the manufacturer	1000 Hz
Tracking method Sources Logitech Signature Comfort Plus M850 L No source recorded. Logitech G203 LIGHTSYNC Manufacturer specification · Logitech does not name the sensor model. Original manufacturer description: Optical tracking. This identifies optical tracking, not a named sensor model. Model-specific hardware, accuracy and performance are not inferred. Logitech / Logicool G203 LIGHTSYNC — launch specification table	Not provided	Optical
On-the-fly DPI settings Sources Logitech Signature Comfort Plus M850 L No source recorded. Logitech G203 LIGHTSYNC Manufacturer specification · G HUB configures the levels; a button cycles through them. Logitech G203 LIGHTSYNC — manufacturer specifications	Not provided	5 settings

Listed controls Sources 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 Logitech G203 LIGHTSYNC Manufacturer specification · Programmable in G HUB. Logitech G203 LIGHTSYNC — manufacturer specifications	6	6
Scroll controlsDifferent Sources 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 Logitech G203 LIGHTSYNC Manufacturer specification · Original exact supported description: Wheel scrolling and middle click; no left/right tilt. Six buttons in total, with no tilt inputs. The exact G102/G203 guide expressly lists Wheel click among six programmed controls, and the manufacturer source explicitly says no tilt. Middle click remains a separately stated positive in these conditions; it is not transferred to the counterpart. Logitech G203 LIGHTSYNC — manufacturer specifications Logitech / Logicool G203 LIGHTSYNC — launch specification table Logitech G102 \| G203 LIGHTSYNC — setup guide	SmartWheel scrolling	Wheel scrolling and middle click; no left/right tilt
Primary-button tensioning Sources Logitech Signature Comfort Plus M850 L No source recorded. Logitech G203 LIGHTSYNC Manufacturer specification · Original manufacturer description: Metal-spring button tensioning. Detail absence on a counterpart is not proof of a different mechanism. Logitech G203 LIGHTSYNC — manufacturer specifications Logitech G203 LIGHTSYNC — launch announcement	Not provided	Primary-button tensioning system

ConnectionsDifferent Sources 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 Logitech G203 LIGHTSYNC Manufacturer specification · Original manufacturer description: Wired USB. Shared wired availability is comparable. Manufacturer cable and connector details retain their own scope; no unlisted connector is inferred. Logitech G203 LIGHTSYNC — manufacturer specifications	Bluetooth Low Energy; Logi Bolt USB receiver compatible (not included); up to 3 paired devices	Wired
Battery Sources 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 Logitech G203 LIGHTSYNC No source recorded.	1 × AA alkaline (included, replaceable); up to 24 months over Bolt or Bluetooth	Not provided
Wireless range Sources Logitech Signature Comfort Plus M850 L Manufacturer specification Logitech UK — Signature Comfort Plus M850 L product page and technical specifications Logitech G203 LIGHTSYNC No source recorded.	10 m	Not provided
Cable length Sources Logitech Signature Comfort Plus M850 L No source recorded. Logitech G203 LIGHTSYNC Manufacturer specification Logitech G203 LIGHTSYNC — manufacturer specifications	Not provided	2.1 m

Customisation softwareDifferent Sources 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 Logitech G203 LIGHTSYNC Manufacturer specification · G HUB is an optional download (internet required); advanced settings need it. Logitech G203 LIGHTSYNC — manufacturer specifications	Logi Options+	Logitech G HUB
Lighting Sources Logitech Signature Comfort Plus M850 L No source recorded. Logitech G203 LIGHTSYNC Manufacturer specification · G HUB supports colour effects, screen sampling and audio-reactive lighting. Published lighting implementation: Three LIGHTSYNC RGB zones. Source-specific tooling, location, modes and effects remain qualified; more detailed wording does not establish another RGB product lacks that implementation. Logitech G203 LIGHTSYNC — manufacturer specifications Logitech G102 \| G203 LIGHTSYNC — setup guide	Not provided	RGB
Onboard memory Sources Logitech Signature Comfort Plus M850 L No source recorded. Logitech G203 LIGHTSYNC Manufacturer specification · Settings saved in G HUB carry to another computer. Logitech G203 LIGHTSYNC — manufacturer specifications	Not provided	Yes
RGB lighting zones Sources Logitech Signature Comfort Plus M850 L No source recorded. Logitech G203 LIGHTSYNC Manufacturer specification · The exact product source explicitly states 3 configurable RGB zones. G HUB supports colour effects, screen sampling and audio-reactive lighting. Published lighting implementation: Three LIGHTSYNC RGB zones. Source-specific tooling, location, modes and effects remain qualified; more detailed wording does not establish another RGB product lacks that implementation. Status indicators are not counted as additional configurable zones. Logitech G203 LIGHTSYNC — manufacturer specifications Logitech G102 \| G203 LIGHTSYNC — setup guide	Not provided	3

Click noise Sources 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 Logitech G203 LIGHTSYNC No source recorded.	Quiet clicks	Not provided
Supported operating systemsDifferent Sources 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 Logitech G203 LIGHTSYNC Manufacturer specification · G HUB has its own current system requirements. Logitech G203 LIGHTSYNC — manufacturer specifications	Bluetooth Low Energy required: Windows 10, 11 or later, macOS 12 or later, Linux, ChromeOS, iPadOS 15 or later, Android 12 or later	USB port; Windows 7 or later; macOS 10.13 or later; ChromeOS
Certifications Sources Logitech Signature Comfort Plus M850 L Manufacturer specification Logitech UK — Signature Comfort Plus M850 L product page and technical specifications Logitech G203 LIGHTSYNC No source recorded.	Certified for WWCB; Engineered for Intel Evo laptops	Not provided
Materials Sources 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 Logitech G203 LIGHTSYNC No source recorded.	Made with recycled plastic	Not provided
Listed packageDifferent Sources Logitech Signature Comfort Plus M850 L Manufacturer specification · No receiver included. Logitech UK — Signature Comfort Plus M850 L product page and technical specifications Logitech G203 LIGHTSYNC Manufacturer specification · The 2.1 m cable is fixed to the mouse. Original exact model package description: G203 LIGHTSYNC mouse; user documentation. The exact UK package names G203 LIGHTSYNC and User documentation; its2.1m cable is fixed to the mouse. This common item-function value does not claim identical document titles, physical bundles, cable parts or regional warranty entitlements. Logitech G203 LIGHTSYNC — manufacturer specifications	Mouse with 1 × AA battery; user documentation	Mouse; documentation

Show unverified (3)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 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 Logitech G203 LIGHTSYNC No source recorded.	Conflicting sources	Not provided
Onboard profile capacity Sources Logitech Signature Comfort Plus M850 L No source recorded. Logitech G203 LIGHTSYNC Logitech does not list this for the model. · Manufacturer specification · Logitech does not list a stored-profile count; the five DPI settings are separate. Logitech G203 LIGHTSYNC — manufacturer specifications	Not provided	Not provided
Main switch technology Sources Logitech Signature Comfort Plus M850 L No source recorded. Logitech G203 LIGHTSYNC Logitech does not list this for the model. · Manufacturer specification · Logitech does not state the switch type. Logitech G203 LIGHTSYNC — manufacturer specifications	Not provided	Not provided

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.