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Logitech Signature Comfort Plus M850 L vs Logitech Signature M550 Wireless Mouse

A

Product A: Logitech

Signature Comfort Plus M850 L

62 of 154 known

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B

Product B: Logitech

Signature M550 Wireless Mouse

62 of 154 known

Change Logitech Signature M550 Wireless Mouse

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All 154 fields

Every value links to where we found it.

Only differences

ALogitech Signature Comfort Plus M850 L

BLogitech Signature M550 Wireless Mouse

General

4 of 9 differ

Series

Signature Series1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026

Signature Series1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

910-007709, 910-007710, 910-007711, 910-007715, 910-007716, 910-0078071Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026US page lists 910-007709 Graphite, 910-007710 Off White and 910-007711 Black.

910-006781, 910-006592, 910-007237, 910-006593, 910-0079051Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026The shared page sells two sizes. The size selector maps 910-006781 Graphite, 910-006592 Off-white, 910-007237 Black, 910-006593 Rose and 910-007905 Red to Signature M550. The Signature M550 L SKUs 910-006591, 910-007911, 910-007238, 910-007910 and 910-007912 are a separate size and are not stored here.

GTIN / EAN

Not available

0978551809714Retailer pagecompsource.com/buy/910006781/Logitech-256/Logitech-Signature-M550-Mouse--Optical--Wireless--3281-ft--Bluetooth--Graphite--USB--4000-dp-910006781Read 15 October 2026Retailer listing for 910-006781 Graphite shows UPC 097855180971. Newegg and other listings repeat it. The pages blocked direct reads, so the value comes from search result text. The UPC check digit is valid. No UPC for the other SKUs was found.

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

26 May 20265Press releaselogitech.com/blog/2026/05/26/signature-comfort-plus-more-comfort-less-distraction-workdays-easierRead 14 October 2026Logitech blog post dated May 26, 2026 announces the Signature Comfort Plus lineup.

Not available

Status

Available1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026

Available1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page shows the mouse in stock at 29.99 USD.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$49.996Press articlecgmagonline.com/news/logitech-unveils-new-comfort-plus-lineupRead 14 October 2026Article of May 26, 2026 states US$49.99 for the M850 L. The Logitech store page shows the same price.

$29.993Maker product pageweb.archive.org/web/20220702111134/https://www.logitech.com/en-us/products/mice/m550-signature-wireless-mouse.htmlRead 15 October 2026The archived page of 2022-07-02 shows an MSRP of 29.99 USD for the Signature M550 SKUs. US price excludes tax.

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

US, EU, GB2Maker product pagelogitech.com/en-eu/shop/p/signature-comfort-plus-m850lRead 14 October 2026EU and GB store pages list 910-007715 Graphite, 910-007716 Off White and 910-007807 Black with the same specification.

Not available

ColoursiThe maker's own colour names

Graphite, Off White, Black1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026

Graphite, Off-white, Black, Rose, Red1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page size selector lists Graphite, Off-white, Black, Rose and Red for Signature M550.

Segment

Office5Press releaselogitech.com/blog/2026/05/26/signature-comfort-plus-more-comfort-less-distraction-workdays-easierRead 14 October 2026Filed under Personal Work Solutions and described as a mouse for long desk days.

Office1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Filed under Signature Series. The page describes a mouse for all-day comfort and productivity.

Mouse type

Standard1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026Conventional horizontal mouse with a sculpted right-hand shape (FAQ). Not a vertical mouse or a trackball.

Standard1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page describes a conventional contoured wireless mouse.

Shape

3 of 14 differ

Body shapeiDescribes shell symmetry, not the intended hand. Symmetrical with side buttons on one side differs from an asymmetric right-handed body. Ambidextrous means a symmetrical body with side buttons on both sides.

Asymmetric, right-handed1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026

Symmetrical body1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page FAQ says the M550 lacks side thumb buttons and its shape is symmetrical and ambidextrous. Stored as symmetrical because it has no side buttons on either side.

Maker size classiThe maker’s marketed size label. Do not infer a size class from dimensions or reviewer hand-fit recommendations.

Not available

Not available

Recommended gripsiGrip styles explicitly recommended by the maker. A reviewer finding a grip usable does not add a maker recommendation.

Not available

Not available

Recommended hand sizeiMaker recommendation, measured from wrist to middle fingertip for hand length. Source notes specify whether limits are inclusive or exclusive.

Not available

Hand length (max)190mm3Maker product pageweb.archive.org/web/20220702111134/https://www.logitech.com/en-us/products/mice/m550-signature-wireless-mouse.htmlRead 15 October 2026Archived page of 2022-07-02: We recommend the M550 for small-to-medium hands and M550 L for large hands. Sizing guide: small under 17.5 cm, medium 17.5 to 19.0 cm, large over 19.0 cm. The guide does not name the measured dimension, so it is read as hand length. Stored as an upper limit of 190 mm. The current page repeats the recommendation without the numbers.

Hump positioniPosition of the shell’s highest point along its length, from a maker drawing or exact-model review.

Not available

Not available

Thumb rest

Yes1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026

Yes1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page text: "Each mouse features a contoured shape, soft thumb area, and rubber side grips that keep your hand snug and in place."

Ring or pinky finger rest

Not available

Not available

Upper shelliThe primary hand-contact shell. An open or perforated bottom alone does not make the upper shell perforated.

Not available

Not available

Swappable parts

Palm rest3Owner's manuallogitech.com/content/dam/support/mice/m850-l/m850-l-ww.pdfRead 14 October 2026Replacing the palm cushion: the cushion is designed to be replaceable and is removed with a pick tool.

Not available

Adjustable weight

Not available

Not available

Maximum added weightiTotal removable weight supplied with the mouse, excluding the mouse’s normal weight.

Not available

Not available

Vertical angle

Not available

Not available

Trackball diameter

Not available

Not available

Trackball position

Not available

Not available

Dimensions and weight

2 of 5 differ

Mouse body dimensionsiLength from front to rear, width at the widest body point, and maximum height. Cable and receiver are excluded. Approximate maker figures are qualified in source notes. Logitech pages often label the front-to-rear length Height and the body height Depth, so map the figures by size.

Length121.8Maximum width74.3Maximum height44.2mm(4.8 × 2.9 × 1.7 in)1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026Page lists Height 121.8 mm, Width 74.3 mm and Depth 44.2 mm. Stored as length, width and height. Receiver not included.

Length108.2Maximum width61Maximum height38.8mm(4.3 × 2.4 × 1.5 in)1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page lists Signature M550 Height 108.2 mm, Width 61 mm and Depth 38.8 mm. Stored as length, width and height by size. The Signature M550 L is larger at 118.7 x 66.2 x 42 mm.

Grip widthiBody width where the thumb and opposite grip finger sit. This differs from maximum body width.

Not available

Not available

Mouse weight (claimed)iWireless mice include the battery. When the maker does not say whether a removable battery is in the weight, the published weight is stored and the source note says so. Wired mice exclude the cable. Source notes identify installed skates, colour, approximation, tolerance or a published bound.

107.9g(3.8 oz)1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026Page lists 107.9 g with battery and 82.9 g without battery. The Signature Comfort Plus M850 L for Business (910-007703) is listed at 102.9 g with battery, so the Business version is a different configuration.

97.4g(3.4 oz)1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page lists Signature M550 at 3.44 oz (97.4 g). It does not say whether the AA battery is included. The colour is not stated. The L size lists 111.12 g.

Box dimensions

Not available

Not available

Packed weightiMouse, packaging and included accessories. Shipping-service weight is not evidence of packed weight.

Not available

Not available

Sensor

4 of 20 differ

Marketed sensor nameiMaker’s sensor branding, or reviewer identification when the maker does not publish one. The physical part number is recorded separately.

Pluto ONE1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026Page lists Sensor Technology Pluto ONE.

Advanced Optical Tracking1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page lists Sensor Technology: Logitech Advanced Optical Tracking. This is the maker's sensor name. No chip part number is published.

Published sensor brandiSensor brand or trademark named by the source, which may be the mouse maker’s proprietary branding. Physical silicon manufacturer and part number are separate facts.

Logitech1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026

Logitech1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page lists Logitech Advanced Optical Tracking.

Physical sensor part numberiExact physical sensor family or part identified by the maker or an exact-model reviewer. Do not infer it from DPI, speed or a sibling mouse.

Not available

Not available

Sensor type

Optical1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026Page lists Tracking technology Logitech Advanced Optical.

Optical1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page lists Logitech Advanced Optical Tracking.

Maximum configurable DPIiMaximum selectable DPI with the documented firmware. Later firmware increases are noted in sources. The sensor chip’s theoretical maximum is not the mouse’s maximum.

4,000DPI1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026

4,000DPI1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page lists DPI Up to 4000. The page FAQ says adjustable from 400 DPI up to 4000 DPI in Logi Options+.

Minimum configurable DPIiLowest selectable sensitivity on this mouse. Factory presets do not establish its minimum.

400DPI1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026

400DPI1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page FAQ says the optical sensor is adjustable from 400 DPI up to 4000 DPI in Logi Options+. The nominal value is also 400 DPI.

DPI adjustment stepiSmallest documented configuration increment, not the spacing between factory presets.

100DPI1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026Page says 400-4000 DPI can be set in increments of 100 DPI. The Business datasheet says 50 DPI increments.

Not available

Maximum DPI stagesiMaximum number of selectable sensitivity presets saved at once, not the number of distinct supported DPI values.

Not available

Not available

Default DPI presetsiFactory preset sensitivity values for the exact model and firmware. Source notes distinguish different factory profiles.

1,000DPI1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026Page lists Nominal value 1000 DPI.

400DPI1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page lists Nominal value: 400 dpi.

Separate X and Y DPI

Not available

Not available

Tracking speed (claimed)iMaker or published product specification, in inches per second. If the source says more than a value, that numeric threshold is stored and qualified in the source note. Do not read it as an exact ceiling.

Not available

Not available

Tracking acceleration (claimed)iMaximum tracking acceleration in multiples of gravitational acceleration, not mouse weight. A source saying more than a value is retained as a qualified threshold in the source note.

Not available

Not available

Lift-off distance settingsiOnly documented selectable lift-off values, or one documented fixed value. A minimum, approximate measured result or unquantified range does not establish a complete option list.

Not available

Not available

Separate lift and landing distance

Not available

Not available

Surface calibrationiSensor calibration for a tracking surface. Adjustable lift-off distance or copying sensitivity from another mouse alone does not establish this feature.

Not available

Not available

Motion SynciWhether sensor motion synchronization is supported. Polling-rate restrictions and default state belong in source notes.

Not available

Not available

Angle snapping

Not available

Not available

Ripple control

Not available

Not available

Tracks on glass

Not available

No1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page FAQ: it does not work well on clear glass. Logitech Advanced Optical Tracking needs some surface texture, so a mouse pad is needed on a clear glass desk.

Sensor position

Not available

Not available

Performance

4 of 8 differ

Documented polling rates by connectioniOne row per documented usable rate and connection. Receiver and firmware requirements are noted. Maximum-only claims do not imply all intermediate settings or the same ceiling over USB.

ALogitech Signature Comfort Plus M850 L

Data connection	Polling rate (Hz)
Bluetooth	125

Source7Reviewtomsguide.com/computing/mice/logitech-signature-comfort-plus-m850l-reviewRead 14 October 2026Review text says Bluetooth maxes out at 125 Hz. The spec table lists polling rate as not specified. Logitech does not publish a rate.

BLogitech Signature M550 Wireless Mouse

Data connection	Polling rate (Hz)	Receiver requirement
2.4 GHz	133	Logi Bolt USB receiver, included
Bluetooth	133	Not available

Source5Maker product pagesupport.logi.com/hc/zh-cn/articles/5271920813335-%E8%A7%84%E6%A0%BC-Signature-M550Read 21 October 2026Chinese-language Specifications article for the Signature M550. The English version asks for a login. Report rates: BOLT 7.5 ms and BLE 7.5 to 11.25 ms. 7.5 ms is stored as 133 Hz for both, as in the M650 entry (1 / 7.5 ms is 133.3 Hz). The BLE range stays in this note. The USB report rate of 1 ms is the receiver own USB interface, not a wired mouse mode.

Max polling rate

125Hz=CalculatedFrom Documented polling rates by connection

133Hz=CalculatedFrom Documented polling rates by connection

Polling rate (wired)

Not available

Not available

Polling rate (2.4 GHz)

Not available

133Hz=CalculatedFrom Documented polling rates by connection

Polling rate (Bluetooth)

125Hz=CalculatedFrom Documented polling rates by connection

133Hz=CalculatedFrom Documented polling rates by connection

Claimed click latencyiAbsolute click-latency claim from the maker. A relative improvement is not absolute latency. Source notes give polling mode and whether the number is an average, bound or best case.

Not available

Not available

Adjustable debounce

Not available

Not available

Minimum debounceiLowest documented debounce setting or fixed main-switch debounce delay. Click response time or total click latency is not the same quantity.

Not available

Not available

Measured

None of 7 known

Latency per connection (measured)iReviewer measurements for an identified connection, polling rate, firmware and settings. Click and sensor latency use different test methods and are not interchangeable.

Not available

Not available

DPI deviation (measured)iReviewer measurement of deviation from a specified DPI value. Test DPI, travel speed, distance and method belong in source notes.

Not available

Not available

Lift-off distance (measured)iReviewer-measured lift-off height at the lowest setting, on the specified surface. Do not store the maker’s selectable LOD here.

Not available

Not available

Main click force (measured)iReviewer-measured main-button actuation force in gram-force. Not the mouse weight and not an electrical latency measure.

Not available

Not available

Weight (measured)iReviewer scale measurement. Include battery for wireless mice and exclude cable for wired mice. Source notes identify colour and installed skates.

Not available

Not available

Battery life (measured)iReviewer-measured runtime from a stated test, not a claim, forecast or extrapolation. Polling, lighting and other power settings must be identified.

Not available

Not available

Hand size fitiExact-model reviewer fit assessment. Source notes define the hand-length bands and tested grip. Do not translate general praise into every size fitting.

Not available

Not available

Switches

2 of 11 differ

Main switch typeiActuation technology for the left and right main buttons. Hybrid means optical-mechanical. Inductive analog switches detect travel by induction.

Mechanical7Reviewtomsguide.com/computing/mice/logitech-signature-comfort-plus-m850l-reviewRead 14 October 2026Review calls the main clicks silent microswitches.

Not available

Published main-switch brandiBrand named for the main switches. Proprietary Razer, Pulsar, Glorious or Logitech branding does not identify the physical contract manufacturer.

Not available

Not available

Main switch model

Not available

Not available

Main switch rated lifeiManufacturer or component rating for the main left/right switches, in millions of actuations. This is not a whole-mouse durability measurement.

Not available

5million5Maker product pagesupport.logi.com/hc/zh-cn/articles/5271920813335-%E8%A7%84%E6%A0%BC-Signature-M550Read 21 October 2026Durability: left and right buttons about 5 million clicks. Scroll wheel middle button about 1 million and connect button about 3000. The article labels the left and right buttons as silent buttons.

Hot-swap main switchesiMain switches can be changed without soldering. Opening the case or using a switch pack can still be required.

Not available

Not available

Adjustable click actuationiThe point where a main click registers can be configured. Debounce adjustment changes timing, not actuation travel.

Not available

Not available

Separate main buttons

Not available

Not available

Side switch model

Not available

Not available

Middle click switch

Not available

Not available

Scroll encoder type

Not available

Not available

Scroll encoder

Not available

Not available

Buttons and scroll wheel

8 of 13 differ

Physical button inputsiIncludes left/right, wheel click, each wheel-tilt direction, DPI/report-rate/profile buttons and a wheel-mode pushbutton. Excludes scroll rotation, power sliders and connection sliders. A connection pushbutton, such as Logitech Easy-Switch, counts even when the maker's own count leaves it out. A button that only switches power does not. Counts each physical input once.

71Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 20263Owner's manuallogitech.com/content/dam/support/mice/m850-l/m850-l-ww.pdfRead 14 October 2026Physical inputs are left and right click, wheel click, DPI button, back and forward buttons and the connect button under the mouse. The field counts the connection pushbutton, so the count is 7. The on/off switch is not counted.

42Maker product pagesupport.logi.com/hc/en-us/articles/5271911123479-Getting-Started-Signature-M550Read 15 October 2026Product Overview lists SmartWheel scroll wheel, connection status LED, connect button, 4000DPI sensor, on/off toggle switch and battery and receiver compartment. Counts left, right, wheel click and the connect button. The maker counts 3 and leaves out the connect pushbutton. The power switch is not counted. The article is titled Signature M550 and its text covers the Signature M550 and M550L.

Programmable buttonsiNumber of physical button inputs that can be remapped. Excludes scroll-up/down actions, alternate software layers and non-programmable mode controls.

41Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026Page lists 4 (scroll-wheel middle click, side buttons, DPI button).

Not available

Side buttonsiButtons on the thumb-facing side walls, including a side DPI-shift button. Top buttons beside the main click plate and bottom setting buttons are excluded.

23Owner's manuallogitech.com/content/dam/support/mice/m850-l/m850-l-ww.pdfRead 14 October 2026

01Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page spec table lists 3 buttons: left and right click and the scroll wheel with middle click. FAQ says the M550 has no side thumb buttons. An archived 2022 spec table listed 5 buttons with Back/Forward, which does not match the current page.

Side buttons on

Left8Reviewbusinesstoday.in/technology/reviews/story/logitech-signature-comfort-plus-m850-l-review-comfort-meets-productivity-547783-2026-08-07Read 14 October 2026Review places the customisable shortcut buttons on the thumb side of this right-handed mouse, which is the left wall.

Not available

DPI buttoniA physical pushbutton that changes sensitivity. A button shared with power or report rate still counts. Software-only switching does not.

Yes3Owner's manuallogitech.com/content/dam/support/mice/m850-l/m850-l-ww.pdfRead 14 October 2026

No1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page FAQ says the M750 adds a top DPI button, which the M550 does not have. Pointer speed is set in Logi Options+.

DPI button position

Top3Owner's manuallogitech.com/content/dam/support/mice/m850-l/m850-l-ww.pdfRead 14 October 2026Top view lists the DPI button beside the SmartWheel on the top shell.

Not available

Profile buttoniA dedicated physical profile-switch button. A remappable input that could be assigned this action does not prove a dedicated control.

Not available

Not available

Dedicated DPI-shift buttoniDedicated physical control for temporarily switching sensitivity while held. A software-remappable input is not automatically a dedicated sniper control.

Not available

Not available

Dedicated gesture buttoniA dedicated physical gesture control. Assigning a gesture action to a remappable button does not establish a separate gesture button.

No1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026Page lists Gesture button: No.

Not available

Scroll wheel

Notched, Free spin1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026Page lists SmartWheel. The setup guide describes ratchet and free-spin scrolling.

Notched, Free spin1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page describes SmartWheel scrolling with line-by-line precision and a fast mode.2Maker product pagesupport.logi.com/hc/en-us/articles/5271911123479-Getting-Started-Signature-M550Read 15 October 2026Article describes line-by-line (ratchet) scroll and speed (inertia) scroll on the SmartWheel.

Scroll mode switchiHow the wheel changes between notched and free-spin modes. None means there is no such mode-switch mechanism.

Automatic3Owner's manuallogitech.com/content/dam/support/mice/m850-l/m850-l-ww.pdfRead 14 October 2026SmartWheel switches between line-by-line and super-fast scrolling with a flick of the wheel.

Automatic1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page says SmartWheel automatically switches modes with the flick of a finger.2Maker product pagesupport.logi.com/hc/en-us/articles/5271911123479-Getting-Started-Signature-M550Read 15 October 2026Article says to switch between the two scrolling styles with the flick of your finger.

Separate thumb wheeliA separate side wheel operated by the thumb. Tilting the central scroll wheel does not count.

No1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026

Not available

Scroll wheel material

Not available

Not available

Build

1 of 6 differ

Shell material

Plastic, polymer unspecified7Reviewtomsguide.com/computing/mice/logitech-signature-comfort-plus-m850l-reviewRead 14 October 2026Spec table lists Body material: Plastic.

Plastic, polymer unspecified1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page callout says Made with recycled plastic. The sustainability data lists certified post-consumer recycled plastic for the mouse, excluding packaging, printed wiring assembly and receiver. The plastic type is not published, so only plastic is stored.

Surface finishiPublished surface finish, such as matte or textured. Soft-feel wording does not establish rubber material or a chemical coating.

Not available

Not available

Installed feet materialiMaterial of the factory-installed skates, excluding separately supplied replacements or dot skates. Virgin PTFE means additive-free or explicitly virgin-grade PTFE.

PTFE7Reviewtomsguide.com/computing/mice/logitech-signature-comfort-plus-m850l-reviewRead 14 October 2026Review says two PTFE skates on the underside.

PTFE5Maker product pagesupport.logi.com/hc/zh-cn/articles/5271920813335-%E8%A7%84%E6%A0%BC-Signature-M550Read 21 October 2026Durable feet: PTFE feet, about 100 km distance.

Installed skate piecesiNumber of separate factory-installed skate pieces, including a sensor ring. Excludes spare skates supplied in the box.

27Reviewtomsguide.com/computing/mice/logitech-signature-comfort-plus-m850l-reviewRead 14 October 2026Review says two PTFE skates on the underside.

Not available

Feet shapeiGeometry of the installed skates. Pads plus a sensor ring are mixed. Separate dots are dots.

Not available

Not available

Feet thickness

Not available

Not available

Cable

0 of 5 differ

Cable

Not available

Not available

Cable length

Not available

Not available

Detachable cableiThe cable unplugs from an external socket on the mouse without opening it. A service-replaceable internal cable does not count.

Not available

Not available

Port on mouseiExternally accessible data/charging socket on the mouse. A fixed cable is none. USB-C describes the connector, not a transfer-speed version.

None3Owner's manuallogitech.com/content/dam/support/mice/m850-l/m850-l-ww.pdfRead 14 October 2026The top, bottom and side views name every external control: wheel, DPI button, LEDs, connect button, sensor, on/off switch, battery compartment and back/forward buttons. No port is shown.

None2Maker product pagesupport.logi.com/hc/en-us/articles/5271911123479-Getting-Started-Signature-M550Read 15 October 2026Product Overview names every external feature. No data or charging port is listed.

Cable host plugiConnector on the computer end of the supplied or fixed cable, independent of the mouse-end connector.

Not available

Not available

Connectivity

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ConnectionsiConnections that carry mouse input data. A USB cable used only for charging does not establish wired USB operation.

Bluetooth1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026Bluetooth Low Energy only in the box. The page says the mouse is compatible with a Logi Bolt USB Receiver that is not included, so 2.4 GHz is not listed.

2.4 GHz, Bluetooth1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page lists the Logi Bolt USB receiver and Bluetooth Low Energy technology.

Wireless technology

Not available

Logi Bolt1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page names the Logi Bolt USB receiver.

BluetoothiThe version number only, such as 5.1. LE and Low Energy are left out. A source that names only Bluetooth Low Energy gives no version.

Not available

Not available

Saved Bluetooth pairing slotsiNumber of Bluetooth hosts whose pairing the mouse remembers. A limit of one concurrently connected host does not establish the number of saved slots.

33Owner's manuallogitech.com/content/dam/support/mice/m850-l/m850-l-ww.pdfRead 14 October 2026Easy-Switch channels 1 to 3 each pair over Bluetooth. A short press of the connect button under the mouse selects the next channel.

Not available

Switchable host devicesiNumber of host devices selectable through the documented mouse controls without manually moving a data cable. Not the number of physical receivers or simultaneous active links alone.

31Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026

11Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page FAQ lists multi-device switching for up to three computers as an M750 feature, not an M550 feature. The M550 pairs one device at a time over Bluetooth or the Logi Bolt receiver.

Device switching

Button3Owner's manuallogitech.com/content/dam/support/mice/m850-l/m850-l-ww.pdfRead 14 October 2026

Not available

Receiver host connectoriHost plug on the included small receiver. A larger cabled receiver is described in source notes. This differs from the charging cable’s plug.

None1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026No receiver in the box. Logi Bolt receiver is sold separately.

USB-A6Maker spec sheet (PDF)logitech.com/content/dam/logitech/en/business/pdf/logi-bolt-ebook.pdfRead 21 October 2026Logi Bolt e-book: the user plugs the Logi Bolt USB receiver into a USB-A port, and the Logi Bolt device technical specification lists USB 2.0 Type-A. The M550 ships the Logi Bolt USB receiver (model CU0021 in the M550 specification article). The separate Logi Bolt USB-C receiver is not in the box.

Receiver storage in mouse

Not available

Yes2Maker product pagesupport.logi.com/hc/en-us/articles/5271911123479-Getting-Started-Signature-M550Read 15 October 2026Step 1: take the Logi Bolt receiver from the compartment inside the battery door. Overview lists a battery and receiver compartment.

Receiver extender includediAn included adapter, dock or cabled receiver arrangement moves the receiver closer to the mouse. A charging-only adapter does not count.

Not available

No1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026In the box: Wireless Mouse, USB Receiver, 1 AA Battery, User documentation. No extender.

Receiver pairing sharediA receiver can pair with another supported device, such as a keyboard, at the same time. This does not mean the mouse switches between computers.

Not available

Yes6Maker spec sheet (PDF)logitech.com/content/dam/logitech/en/business/pdf/logi-bolt-ebook.pdfRead 21 October 2026Logi Bolt e-book: five more Logi Bolt devices can be paired with the same receiver, six in total.7Maker product pagesupport.logi.com/hc/en-001/articles/1500007361841-How-to-connect-multiple-Bolt-devices-to-one-receiverRead 21 October 2026Logitech support: "You can pair up to six Logi Bolt wireless mice and keyboards to a single Logi Bolt USB receiver." The article does not name the M550. The M550 ships a Logi Bolt USB receiver.

Wireless rangeiPublished range and test conditions. A recommended receiver distance or minimum reliable range is not an exact maximum.

10m1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026Page lists 33 ft (10 m).

10m1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page lists 33 ft (10 m) wireless range. Range may vary with the operating environment.

Basic mouse OS supportiOperating systems supported for basic input. Configuration software support is listed separately and may require a newer OS version.

Windows, macOS, Linux, ChromeOS, iPadOS, Android1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026

Windows, macOS, Linux, ChromeOS, iPadOS, Android1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Logi Bolt receiver: Windows 10 and 11 or later, macOS 10.10 or later, Linux, ChromeOS. Bluetooth: Windows, macOS 10.15 or later, Linux, ChromeOS, iPadOS 14 or later, Android 8.0 or later. Linux and ChromeOS need no drivers.

ConsolesiConsole families explicitly supported. Source notes identify exact consoles, games and reduced polling or software functions.

Not available

Not available

Battery

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Battery type

AA1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026

AA1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page lists 1 x AA battery (included).

Disposable battery countiNumber of disposable cells, such as AA or AAA. Do not use this field for internal rechargeable cells.

11Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026

11Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page lists 1 x AA battery (included).

Battery capacityiPublished or physically identified internal battery capacity. Do not calculate mAh from claimed runtime or compare capacities across unverified hardware revisions.

Not available

Not available

User-replaceable batteryiBattery replacement is a supported user procedure. The ability to open and modify the mouse does not establish this feature.

Yes1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026FAQ says the mouse has a replaceable battery.

Yes1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page FAQ says the mouse runs on a single AA battery that lasts up to 24 months before needing a replacement.2Maker product pagesupport.logi.com/hc/en-us/articles/5271911123479-Getting-Started-Signature-M550Read 15 October 2026Article: slide the battery compartment cover down and lift it off to install a new AA battery. Requires 1 AA alkaline battery.

Battery life by mode (claimed)iOne manufacturer or published product claim per documented connection, polling rate and lighting condition. Omit unstated conditions. Source notes identify performance, switch and haptic modes and whether runtime is up to a value.

Not available

Not available

Battery life (up to)iManufacturer estimate of days of normal use between full charges. This includes periods when the mouse is idle. It is not continuous runtime. Source notes preserve usage conditions and qualifiers when published. Do not convert this estimate to continuous hours.

Not available

Not available

Battery life (normal use)iManufacturer estimate of calendar months of normal use between charges or battery replacements. It is not continuous runtime. Source notes retain approximate, up-to, or-more and operating-mode qualifiers. Do not convert this estimate to continuous hours.

24months1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026Page lists up to 24 months. Actual battery life varies by usage.

24months1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page lists up to 24 months with the Logi Bolt USB receiver and up to 20 months with Bluetooth. Stored the receiver figure. It may vary with use and computing conditions.

Longest battery life

Not available

Not available

Battery life at 1000 HziLongest stored claim explicitly at 1000 Hz over 2.4 GHz. A claim without a confirmed polling rate is excluded.

Not available

Not available

Battery life on Bluetooth

Not available

Not available

Charging port

None1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026FAQ: no charging cable is needed because the mouse has a replaceable battery.

None2Maker product pagesupport.logi.com/hc/en-us/articles/5271911123479-Getting-Started-Signature-M550Read 15 October 2026The mouse takes one AA alkaline battery and no charging port is listed.

Full charge timeiClaimed time from empty to full charge, in minutes. Approximation and charging setup are stated in source notes.

Not available

Not available

Quick charge

Not available

Not available

Use while chargingiMouse input works while the internal battery charges through the documented wired or dock arrangement.

Not available

Not available

Charging system compatibilityiNamed wireless charging pad or contact dock. Source notes distinguish inductive pads from pogo-pin contact charging.

Not available

Not available

Charging dock included

Not available

No1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026The in-the-box list has no dock. The mouse uses an AA battery.

Battery indicator

LED, Software3Owner's manuallogitech.com/content/dam/support/mice/m850-l/m850-l-ww.pdfRead 14 October 2026LED on top shows battery status. Logitech software adds low-charge notifications.

LED, Software2Maker product pagesupport.logi.com/hc/en-us/articles/5271911123479-Getting-Started-Signature-M550Read 15 October 2026Connection status LED is green from 100 to above 5 percent and red at the critical level, about one month of average use. Logitech software gives battery status notifications including low-charge warnings.

Lighting

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Decorative RGB lightingiUser-configurable decorative lighting. A multicolour status, DPI or battery indicator alone is not decorative RGB.

No7Reviewtomsguide.com/computing/mice/logitech-signature-comfort-plus-m850l-reviewRead 14 October 2026Spec table lists Lighting: No.

No5Maker product pagesupport.logi.com/hc/zh-cn/articles/5271920813335-%E8%A7%84%E6%A0%BC-Signature-M550Read 21 October 2026LEDs listed: one battery indicator on top and one connection indicator on the bottom. No other lighting is listed.

Decorative lighting zonesiNumber of independently controlled decorative lighting zones. Status indicator LEDs are excluded.

Not available

Not available

Lighting sync

Not available

Not available

DPI indicator

Not available

None5Maker product pagesupport.logi.com/hc/zh-cn/articles/5271920813335-%E8%A7%84%E6%A0%BC-Signature-M550Read 21 October 2026Only the battery and connection LEDs are listed, and there is no DPI button, so there is no DPI indicator.

Software

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Software

Logi Options+1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026

Logi Options+1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page lists the optional customization app Logi Options+.

Configuration software platformsiPlatforms explicitly supported for configuring this exact model. Basic input compatibility and availability of a generic app on another platform do not establish model support.

Windows, macOS1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026

Windows, macOS1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page lists Logi Options+ on Windows and macOS.

Onboard memoryiDocumented settings remain available without configuration software running. Which settings persist is stated in source notes.

Not available

Not available

Onboard profilesiMaximum distinct hardware-stored profiles. Software game profiles and factory preset profiles do not establish this maximum.

Not available

Not available

Macros

Not available

Not available

Macros stored onboardiMacros themselves execute from mouse memory without the configuration app. Onboard DPI or button assignments alone do not prove onboard macros.

Not available

Not available

Button remapping

Yes1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026

Yes2Maker product pagesupport.logi.com/hc/en-us/articles/5271911123479-Getting-Started-Signature-M550Read 15 October 2026The same section says each app-specific setting can be customized manually. The mouse has no side buttons, so the assignable buttons are the clicks and the wheel click.

Per-app profiles

Yes4Maker product pagesupport.logi.com/hc/en-us/articles/39622699741847-Getting-Started-Signature-Comfort-Plus-MK880Read 14 October 2026The page covers the M850 L mouse in the MK880 combo. App-specific settings for Chrome, Zoom, Excel, Word and others are listed. Needs Logi Options+ running.

Yes2Maker product pagesupport.logi.com/hc/en-us/articles/5271911123479-Getting-Started-Signature-M550Read 15 October 2026App-Specific Settings section: with Logitech software installed, mouse buttons can be assigned different functions per application, with predefined settings such as middle button actions for browsers, Office apps and Photoshop. Needs the software.

User firmware updatesiA public user-accessible updater or documented software firmware-update procedure exists for this exact model.

Not available

Not available

In the box

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In the boxiDocumented contents of the specified colour or bundle. Installed parts and optional extras are distinguished in source notes.

Mouse with 1 x AA battery (included), User documentation1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026

Wireless Mouse, USB Receiver, 1 AA Battery, User documentation1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026Page lists Wireless Mouse, USB Receiver, 1 AA Battery and User documentation.

Cables included

Not available

Not available

Extra skates includediAn extra usable skate set is supplied separately from installed skates, including an alternative dot set. Factory protective film is not a spare skate.

Not available

No1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026The in-the-box list has no spare skates.

Grip tape

Not available

No1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026The in-the-box list has no grip tape.

Links

Not compared

Product page

www.logitech.com/en-us/shop/p/signature-comfort-plus-m850l1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026

www.logitech.com/en-us/shop/p/m550-signature-wireless-mouse1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026

Spec sheet

www.logitech.com/en-us/shop/p/signature-comfort-plus-m850l1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026

www.logitech.com/en-us/shop/p/m550-signature-wireless-mouse1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026

Manual

www.logitech.com/content/dam/support/mice/m850-l/m850-l-ww.pdf3Owner's manuallogitech.com/content/dam/support/mice/m850-l/m850-l-ww.pdfRead 14 October 2026

support.logi.com/hc/en-us/articles/5271911123479-Getting-Started-Signature-M5502Maker product pagesupport.logi.com/hc/en-us/articles/5271911123479-Getting-Started-Signature-M550Read 15 October 2026Official Getting Started article for the Signature M550. No PDF manual was found.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

Warranty

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Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

1year1Maker product pagelogitech.com/en-us/shop/p/signature-comfort-plus-m850lRead 14 October 2026US page states a 1-Year Limited Hardware Warranty. The EU and GB pages state 2 years.

1year1Maker product pagelogitech.com/en-us/shop/p/m550-signature-wireless-mouseRead 15 October 2026US page states a 1-Year Limited Hardware Warranty. The EU and GB pages for the L size state 2 years.

Both are also in the API. Back to all mice.