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Logitech Signature M650 Wireless Mouse vs Nulea M501 Wireless Trackball Mouse

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Product A: Logitech

Signature M650 Wireless Mouse

65 of 154 known

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B

Product B: Nulea

M501 Wireless Trackball Mouse

58 of 154 known

Change Nulea M501 Wireless Trackball Mouse

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Only differences

ALogitech Signature M650 Wireless Mouse

BNulea M501 Wireless Trackball Mouse

General

5 of 9 differ

Series

Signature Series1Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026

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

910-006250, 910-006251, 910-006252, 910-0062681Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026The page lists four Signature M650 SKUs for the Medium size: 910-006250 Graphite, 910-006251 Rose, 910-006252 Off-white and 910-006268 Black. The Large and Large Left SKUs belong to the separate M650 L and M650 L Left. Regional EU SKUs such as 910-006253 and 910-006262 appear at EU retailers and are not stored.

M5013Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026Specifications page: Model M501.

GTIN / EAN

097855167637, 0978551676446Retailer pageebay.com/p/13052404644Read 20 October 2026Graphite 910-006250: UPC 097855167637. ADI Global lists the same number as 97855167637. Read from search result text. The check digit is valid. The Rose SKU 910-006251 has UPC 097855167644 on a CompSource listing, also from search text. The other two SKUs have no UPC found.

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

11 January 20224Press releasenews.logitech.com/press-releases/news-details/2022/Logitech-Signature-M650-Mouse-Offers-a-More-Personalized-Experience-and-a-Left-Handed-Option/default.aspxRead 20 October 2026Press release dated 11 January 2022.

Not available

Status

Available1Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026

Available1Maker product pagenulea.com/products/nulea-m501-wireless-trackball-mouseRead 15 October 2026Store page lists the mouse in stock at 33.99 USD for Red. Other colours are 34.99 to 36.99 USD.

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

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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.

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

$39.994Press releasenews.logitech.com/press-releases/news-details/2022/Logitech-Signature-M650-Mouse-Offers-a-More-Personalized-Experience-and-a-Left-Handed-Option/default.aspxRead 20 October 2026Suggested retail price 39.99 USD for the Signature M650 and the larger M650 L. US price, tax excluded. No EUR price is stated.

$39.995Maker product pageweb.archive.org/web/20211127234425/https://nulea.com/products/nulea-m501-wireless-trackball-mouseRead 15 October 2026Archived maker page of 2021-11-27, 11 days after the store page was published, shows 39.99 USD with no sale price. 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

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

Not available

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ColoursiThe maker's own colour names

Graphite, Rose, Off-white, Black1Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 20264Press releasenews.logitech.com/press-releases/news-details/2022/Logitech-Signature-M650-Mouse-Offers-a-More-Personalized-Experience-and-a-Left-Handed-Option/default.aspxRead 20 October 2026Launch colours: off-white, graphite and rose. Black is listed on the current Logitech US page, and its launch date was not found.

Red, Blue, Black, Silver, Pink, Purple, Green, Orange, Gold1Maker product pagenulea.com/products/nulea-m501-wireless-trackball-mouseRead 15 October 2026The colour selector lists Red, Blue, Black, Silver, Pink, Purple, Green, Orange and Gold. A separate store page, Nulea M501 Wireless Trackball Mouse Dark Blue, exists since 2025-03-25 and is not stored here.

Segment

Office1Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026Logitech sells it in its Signature mouse series for office use. No gaming or travel claim is made.

Ergonomic1Maker product pagenulea.com/products/nulea-m501-wireless-trackball-mouseRead 15 October 2026The page files the mouse under ERGO MICE and describes an ergonomic design for all-day comfort.

Mouse type

Standard1Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026

Trackball1Maker product pagenulea.com/products/nulea-m501-wireless-trackball-mouseRead 15 October 2026The page describes a trackball moved by thumb control.

Shape

5 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.

Symmetrical body1Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026FAQ: the M550, M650 and M750 share the exact same shape. The M550 is ambidextrous and the M650 adds two side buttons. The body is stored as symmetrical with side buttons on one side. A dedicated M650 L Left exists with the side buttons on the right.

Asymmetric, right-handed7Retailer pageamazon.com/dp/B09HHHDZZGRead 15 October 2026Product information lists Hand Orientation Right. The brand's comparison chart marks every Nulea trackball in it as Right.

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

Medium5Maker product pagefutureisnow.logitech.com/en-ca/products/mice/m650-signature-for-business.htmlRead 20 October 2026The M650 for Business page labels the 108.2 x 61 x 38.8 mm body Medium and the 118.7 x 66.2 x 42 mm body Large. The consumer page names the sizes M650 and M650 L. The Medium label comes from the Business page for the same body, so check it if the consumer label is wanted.

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

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

Hand length (max)190mm1Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026Page: M650 for small-to-medium hands, M650 L for large hands. The M650 for Business spec page gives a sizing guide for the same Medium body: fits hand length 17.5 to 19.0 cm. Only the upper limit 190 mm is stored, as for the M550. Inclusive or exclusive is not stated.

Not available

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

Not available

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Thumb rest

Not available

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Ring or pinky finger rest

Not available

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

Not available

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Swappable parts

Not available

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Adjustable weight

Not available

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

Not available

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Vertical angle

Not available

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Trackball diameter

Not available

34mm7Retailer pageamazon.com/dp/B09HHHDZZGRead 15 October 2026Brand comparison chart on the Amazon page lists Trackball size 34mm for the M501 column.

Trackball position

Not available

Thumb7Retailer pageamazon.com/dp/B09HHHDZZGRead 15 October 2026The same chart lists Trackball Control Method Thumb Control for the M501. The ball sits under the thumb on the left wall.

Dimensions and weight

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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.

Length108.2Maximum width61Maximum height38.8mm(4.3 × 2.4 × 1.5 in)2Maker product pagesupport.logi.com/hc/en-001/articles/4414480412567-Specification-Signature-M650Read 20 October 2026Table lists Height 108.2 mm, Width 61 mm and Depth 38.8 mm. Logitech labels the front-to-rear length Height and the body height Depth, so the figures are mapped by size: length 108.2, width 61, height 38.8. The M550 has the same three figures, and the page states they share the exact same shape.

Length136Maximum width103Maximum height50mm(5.4 × 4.1 × 2 in)3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026Specifications page lists Size 136x103x50 mm. The drawing marks 136 mm as body length, 103 mm as width across the trackball lobe and 50 mm as height. A ManualsLib copy of an older manual lists 137x104x51 mm and Frontum lists 104 mm and 51 mm. The current maker manual is stored.

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

Not available

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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.

101.4g(3.6 oz)2Maker product pagesupport.logi.com/hc/en-001/articles/4414480412567-Specification-Signature-M650Read 20 October 2026101.4 g (3.58 oz) for the Signature M650. The page says the AA battery is included inside the mouse and does not say whether it is in the weight. The Gadgeteer review of Feb 2022 listed 101.2 g, so the figure may have been revised.

128g(4.5 oz)3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026Specifications page lists Weight 128 g. Amazon lists 4.51 oz (127.9 g). The mouse has a built-in battery, so the weight includes it. Colour not stated. A ManualsLib copy of an older manual lists 130 g.

Box dimensions

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

Not available

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Sensor

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

Advanced Optical Tracking1Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026Specs: Sensor technology Logitech Advanced Optical Tracking.

Not available

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/m650-signature-wireless-mouse.910-006250Read 20 October 2026

Not available

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

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Sensor type

Optical1Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026

Optical3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026FAQ 1 tells the user to wipe carefully near the optical sensor.

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/m650-signature-wireless-mouse.910-006250Read 20 October 2026Specs: Max value up to 4000. FAQ: adjustable from 400 to 4000 DPI in Logi Options+.

1,600DPI1Maker product pagenulea.com/products/nulea-m501-wireless-trackball-mouseRead 15 October 2026FAQ Q4: 4 DPI settings, 400 (Default)-800-1200-1600. The manual agrees. Images on the same page say 5 DPI Level, and Amazon and retailer listings of older units list 100-200-400-800-1200. The FAQ and manual value is stored.3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026Specifications page lists DPI 400 (Default)-800-1200-1600.

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

400DPI1Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026FAQ: adjustable from 400 DPI up to 4000 DPI.

400DPI1Maker product pagenulea.com/products/nulea-m501-wireless-trackball-mouseRead 15 October 2026FAQ Q4: 4 DPI settings from 400 to 1600. No lower setting is documented.3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026Specifications page lists DPI 400 (Default)-800-1200-1600.

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

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

Not available

41Maker product pagenulea.com/products/nulea-m501-wireless-trackball-mouseRead 15 October 2026FAQ Q4 and the manual list four DPI levels. The manual says more speed can only be set in the computer's own pointer settings.3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026DPI Mode: there are 4 DPI levels.

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

400DPI1Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026Specs: Nominal value 400 DPI. Same convention as the Signature M550 entry.

400, 800, 1,200, 1,600DPI1Maker product pagenulea.com/products/nulea-m501-wireless-trackball-mouseRead 15 October 2026FAQ Q4: 400 (Default), 800, 1200 and 1600.3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026DPI Mode: the red light flashes once, twice, three or four times for 400, 800, 1200 and 1600 DPI. The default is 400.

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

30IPS3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026Specifications page lists Tracking Speed 30 In/sec. Stored as published, with no qualifier.

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.

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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.

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Separate lift and landing distance

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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

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

Not available

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Angle snapping

Not available

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Ripple control

Not available

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Tracks on glass

No1Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026FAQ: it does not work well on clear glass because the sensor needs some surface texture.

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Sensor position

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Performance

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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 M650 Wireless Mouse

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

Source2Maker product pagesupport.logi.com/hc/en-001/articles/4414480412567-Specification-Signature-M650Read 20 October 2026Report rates: Logi Bolt 7.5 ms and Bluetooth 7.5 to 11.25 ms. 7.5 ms is stored as 133 Hz for both, as in the M240 entry, and the Bluetooth range stays in this note. The USB 1 ms figure is the receiver's own USB interface, not a wired mouse mode.

BNulea M501 Wireless Trackball Mouse

Data connection	Polling rate (Hz)	Receiver requirement
2.4 GHz	250	included USB receiver
Bluetooth	115	Not available

Source3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026Specifications page lists Report Rate 250 Hz (2.4G) and 115 Hz (Bluetooth). Read as the report rate.

Max polling rate

133Hz=CalculatedFrom Documented polling rates by connection

250Hz=CalculatedFrom Documented polling rates by connection

Polling rate (wired)

Not available

Not available

Polling rate (2.4 GHz)

133Hz=CalculatedFrom Documented polling rates by connection

250Hz=CalculatedFrom Documented polling rates by connection

Polling rate (Bluetooth)

133Hz=CalculatedFrom Documented polling rates by connection

115Hz=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

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Adjustable debounce

Not available

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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

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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

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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.

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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.

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Switches

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

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

Logitech1Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026

Not available

Main switch model

SilentTouch1Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026The page names SilentTouch technology, which cuts click noise by over 90 percent compared with the Logitech M185. The switch maker is not named. SilentTouch is the maker's own brand.

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.

5million2Maker product pagesupport.logi.com/hc/en-001/articles/4414480412567-Specification-Signature-M650Read 20 October 2026Rated clicks: left and right (silent) 5 million. Wheel middle-click 1 million, forward and back 500K, connectivity button 3K.

Not available

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

Not available

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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

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Side switch model

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Middle click switch

Not available

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Scroll encoder type

Not available

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Scroll encoder

Not available

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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.

61Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026Specs: 5 buttons (left and right click, back and forward, scroll wheel with middle click). The support specification adds a connectivity button, which counts here, so 6. The On/Off switch is not counted.2Maker product pagesupport.logi.com/hc/en-001/articles/4414480412567-Specification-Signature-M650Read 20 October 2026Buttons: 5 (left and right click, back and forward, scroll wheel with middle click) plus a connectivity button.

73Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026Product Features diagram labels Left Key, Right Key, Scroll Wheel, Move Forward Key, Move Backward Key, DPI Switch Key and a Mode Key on the underside. A buyer guide counts the scroll click among the maker's six buttons. The Mode Key switches the connection, so it counts under the schema rule. The ON/OFF button only switches power and is not counted. The maker's own count is 6.6Reviewgamingpcguru.com/nulea-m501-trackball-reviewRead 15 October 2026Article dated 2026-05-20 and updated 2026-10-09 lists six buttons: two main clicks, scroll click, DPI and two thumb buttons for forward and back. It reports no hands-on testing. The Mode Key on the underside is added under the schema rule, so the stored count is 7.

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

Not available

01Maker product pagenulea.com/products/nulea-m501-wireless-trackball-mouseRead 15 October 2026FAQ Q3: all buttons are not programmable.

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.

21Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026Back and forward buttons on the thumb side.

23Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026Move Forward Key and Move Backward Key sit on the thumb-side wall.

Side buttons on

Left1Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026FAQ: M650 L Left is the left-handed version with the side buttons placed on the right side. The standard M650 therefore has them on the left side, the thumb side for a right hand.

Left3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026The diagram shows both buttons on the left wall of this right-handed mouse, above the trackball.

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

No1Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026The support overview lists no DPI button. The M750 adds a top DPI button, the M650 does not (FAQ).

Yes3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026Diagram label: DPI Switch Key.

DPI button position

Not available

Top3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026Diagram and photos show the DPI key on the top shell below the scroll wheel.

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

Not available

No3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026The complete control list in Product Features has no profile button.

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

No3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026The complete control list has no dedicated DPI-shift button.

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

No3Owner's manualsupport.logi.com/hc/en-us/articles/4414473810583-Getting-Started-Signature-M650Read 20 October 2026A gesture action is assigned to the forward or back button in Options+. No separate gesture button exists.

No3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026The complete control list has no gesture button.

Scroll wheel

Notched, Free spin1Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026SmartWheel switches between line-by-line ratchet scrolling and fast free-spin scrolling with a flick.

Not available

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

Automatic1Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026Automatic by flick of the finger, no button.3Owner's manualsupport.logi.com/hc/en-us/articles/4414473810583-Getting-Started-Signature-M650Read 20 October 2026Flick a finger on the SmartWheel to switch between ratchet and speed modes.

Not available

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/m650-signature-wireless-mouse.910-006250Read 20 October 2026Specs list 5 buttons and the SmartWheel only. The setup guide overview lists no thumb wheel. Horizontal scrolling uses a side button with the wheel.

No3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026The complete control list has no separate thumb wheel.

Scroll wheel material

Not available

Not available

Build

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Shell material

Plastic, polymer unspecified2Maker product pagesupport.logi.com/hc/en-001/articles/4414480412567-Specification-Signature-M650Read 20 October 2026Plastic is PCR plastic (Kingfa 35 percent PCR or Wistron 85 percent PCR). The polymer is not named.

ABS3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026Specifications page lists Material ABS.

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.

PTFE2Maker product pagesupport.logi.com/hc/en-001/articles/4414480412567-Specification-Signature-M650Read 20 October 2026PTFE feet, rated for 100 km.

Not available

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

Not available

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

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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.

None2Maker product pagesupport.logi.com/hc/en-001/articles/4414480412567-Specification-Signature-M650Read 20 October 2026The setup guide product overview lists every external part: scroll wheel, LEDs, connect button, sensor, On/Off switch, battery and receiver compartment and back/forward buttons. No data or charging port is listed.

USB-C3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026Charging section: Type-C charging cable. Photos show the USB-C socket on the front edge. The cable is for charging and cannot be used as a wired mouse.

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

Not available

USB-A3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026Troubleshooting says not to use a Type C-C cable, so the supplied cable has another host plug. The included cable is a USB-A to USB-C charging cable by that rule.

Connectivity

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

2.4 GHz, Bluetooth1Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026Logi Bolt USB receiver or Bluetooth Low Energy.

2.4 GHz, Bluetooth1Maker product pagenulea.com/products/nulea-m501-wireless-trackball-mouseRead 15 October 2026Page says the mouse connects by Bluetooth or a 2.4G USB receiver. The USB cable is for charging only, so no wired mode is stored.

Wireless technology

Logi Bolt1Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026

Not available

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.

Not available

23Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026The mode switch diagram shows two Bluetooth channels, BT1 and BT2, and one 2.4G channel. Troubleshooting says one channel pairs with one device.

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.

11Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026FAQ: the M750 adds multi-device switching for up to three computers. The M650 has one channel (Channel 1 in the setup guide).3Owner's manualsupport.logi.com/hc/en-us/articles/4414473810583-Getting-Started-Signature-M650Read 20 October 2026Bluetooth pairing is described for Channel 1 only.

31Maker product pagenulea.com/products/nulea-m501-wireless-trackball-mouseRead 15 October 2026Page says it connects to up to 3 devices via Bluetooth or the USB dongle.

Device switching

Not available

Button1Maker product pagenulea.com/products/nulea-m501-wireless-trackball-mouseRead 15 October 2026Page says to switch between devices with the button on the bottom.

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.

USB-A2Maker product pagesupport.logi.com/hc/en-001/articles/4414480412567-Specification-Signature-M650Read 20 October 2026Logi Bolt USB receiver. The Type-A plug is stated on the M650 for Business page for the same receiver.5Maker product pagefutureisnow.logitech.com/en-ca/products/mice/m650-signature-for-business.htmlRead 20 October 2026In the box: Logi Bolt USB receiver (USB Type-A).

USB-A3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026The 2.4G Connection page draws a nano receiver with a USB-A plug.

Receiver storage in mouse

Yes2Maker product pagesupport.logi.com/hc/en-001/articles/4414480412567-Specification-Signature-M650Read 20 October 2026Logi Bolt USB receiver, stored inside the mouse. USB 2.0, Full Speed.

Yes1Maker product pagenulea.com/products/nulea-m501-wireless-trackball-mouseRead 15 October 2026Page and FAQ Q5: the 2.4G USB receiver is stored at the bottom of the mouse.

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

No1Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026

No3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026Package Content lists the mouse, manual and cable only.

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

Not available

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/m650-signature-wireless-mouse.910-006250Read 20 October 2026Wireless range up to 33 ft (10 m). It may vary with the operating environment.

10m7Retailer pageamazon.com/dp/B09HHHDZZGRead 15 October 2026Product information lists Range 10.0 meters. Test conditions are not stated and the maker does not publish a range.

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/m650-signature-wireless-mouse.910-006250Read 20 October 2026Logi Bolt receiver: Windows 10 or later, macOS 10.10 or later, Linux, ChromeOS. Bluetooth LE adds iPadOS and Android. Works with Chromebook certified.2Maker product pagesupport.logi.com/hc/en-001/articles/4414480412567-Specification-Signature-M650Read 20 October 2026Windows 10 and 11, macOS 10.10 or later, Chrome OS, Linux, Android 5.0 or later, iPadOS 13.4 or later.

Windows, macOS1Maker product pagenulea.com/products/nulea-m501-wireless-trackball-mouseRead 15 October 2026Page says the forward and backward buttons are not compatible with macOS, which confirms macOS use. The manual gives Windows and macOS Bluetooth steps. No other operating system is documented on the current page.

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/m650-signature-wireless-mouse.910-006250Read 20 October 2026

Li-ion7Retailer pageamazon.com/dp/B09HHHDZZGRead 15 October 2026Product information lists 1 Lithium Ion batteries required. The battery is built in and not a replaceable cell.

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/m650-signature-wireless-mouse.910-006250Read 20 October 2026

Not available

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.

Yes2Maker product pagesupport.logi.com/hc/en-001/articles/4414480412567-Specification-Signature-M650Read 20 October 2026Battery: 1 x AA, non-rechargeable, user replaceable.

No1Maker product pagenulea.com/products/nulea-m501-wireless-trackball-mouseRead 15 October 2026Page describes a built-in rechargeable battery. The manual says do not disassemble. No replacement procedure is given.

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/m650-signature-wireless-mouse.910-006250Read 20 October 2026Up to 24 months with the Logi Bolt receiver, up to 20 months with Bluetooth (support specification). The longer figure is stored. It may vary based on use and computing conditions.

Not available

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

None2Maker product pagesupport.logi.com/hc/en-001/articles/4414480412567-Specification-Signature-M650Read 20 October 2026The battery is non-rechargeable and the overview lists no charging port.

USB-C1Maker product pagenulea.com/products/nulea-m501-wireless-trackball-mouseRead 15 October 2026FAQ and page images: the mouse charges over a Type-C cable. The charging indicator turns blue while charging.

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

No1Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026

No3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026Package Content is complete and lists no dock. The mouse charges over its Type-C port.

Battery indicator

LED, Software1Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026Battery status LED on the mouse (setup guide). Logi Options+ shows the battery level.3Owner's manualsupport.logi.com/hc/en-us/articles/4414473810583-Getting-Started-Signature-M650Read 20 October 2026Green LED from 100 percent down to above 5 percent, red LED at the critical level, and Logi Options+ reports the level.

LED1Maker product pagenulea.com/products/nulea-m501-wireless-trackball-mouseRead 15 October 2026FAQ Q1: an indicator light under the DPI button turns blue when charging and off when fully charged. The manual adds a red flicker for low battery.

Lighting

1 of 4 differ

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

Not available

Not available

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

LED3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026Light Indication: DPI switching shows a red light.

Software

4 of 9 differ

Software

Logi Options+1Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026Logi Options+ on Windows and macOS, optional download.

Not available

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/m650-signature-wireless-mouse.910-006250Read 20 October 20262Maker product pagesupport.logi.com/hc/en-001/articles/4414480412567-Specification-Signature-M650Read 20 October 2026Logi Options+ on Windows 10 or later and macOS 10.15 or later.

Not available

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/m650-signature-wireless-mouse.910-006250Read 20 October 2026Logi Options+ customises the side buttons.3Owner's manualsupport.logi.com/hc/en-us/articles/4414473810583-Getting-Started-Signature-M650Read 20 October 2026The article says the side buttons can be customised in Logi Options+.

No1Maker product pagenulea.com/products/nulea-m501-wireless-trackball-mouseRead 15 October 2026FAQ Q3: all buttons on this wireless trackball mouse are not programmable.

Per-app profiles

Yes1Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026The setup guide describes app-specific settings in Logi Options+.

Not available

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

2 of 4 differ

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

Wireless Mouse, USB Receiver, 1 AA Battery, User documentation1Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026Package contents row list: Wireless Mouse, USB Receiver, 1 AA Battery, User documentation.

Wireless Trackball Mouse, User Manual, Type-C Charging Cable3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026Package Content: 1 Wireless Trackball Mouse, 1 User Manual, 1 Type-C Charging Cable. The USB receiver is stored in the mouse and is not listed.

Cables included

ALogitech Signature M650 Wireless Mouse

Not available

BNulea M501 Wireless Trackball Mouse

Type	Cable count
Type-C charging cable	1

Source3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026Package Content: 1 Type-C Charging Cable.

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.

No1Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026

No3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026Package Content is complete and lists no spare skates.

Grip tape

No1Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026

No3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026Package Content is complete and lists no grip tape.

Links

Not compared

Product page

www.logitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-0062501Maker product pagelogitech.com/en-us/shop/p/m650-signature-wireless-mouse.910-006250Read 20 October 2026

nulea.com/products/nulea-m501-wireless-trackball-mouse1Maker product pagenulea.com/products/nulea-m501-wireless-trackball-mouseRead 15 October 2026

Spec sheet

support.logi.com/hc/en-001/articles/4414480412567-Specification-Signature-M6502Maker product pagesupport.logi.com/hc/en-001/articles/4414480412567-Specification-Signature-M650Read 20 October 2026

cdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdf3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026The manual's Specifications page is the only spec table the maker publishes.

Manual

support.logi.com/hc/en-us/articles/4414473810583-Getting-Started-Signature-M6503Owner's manualsupport.logi.com/hc/en-us/articles/4414473810583-Getting-Started-Signature-M650Read 20 October 2026Getting Started article. It lists the product overview: SmartWheel, battery status LED, connection status LED, connect button, 4000 DPI sensor, On/Off toggle switch, battery and receiver compartment, back and forward buttons.

cdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdf3Owner's manualcdn.shopify.com/s/files/1/0549/9768/0300/files/M501_Wireless_Trackball_Mouse_-_User_Manual.pdfRead 15 October 2026

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

0 of 1 differ

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/m650-signature-wireless-mouse.910-006250Read 20 October 20261-Year Limited Hardware Warranty (US page).

1year4Maker product pagenulea.com/pages/product-warrantyRead 15 October 2026All Nulea keyboard and mouse products come with a 12-month warranty from the date of purchase. US store. An archived page of 2021 offered 18 months at launch.

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