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Logitech MX Ergo S vs Nulea M501 Wireless Trackball Mouse

A

Product A: Logitech

MX Ergo S

71 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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All 154 fields

Every value links to where we found it.

Only differences

ALogitech MX Ergo S

BNulea M501 Wireless Trackball Mouse

General

4 of 9 differ

Series

Ergo Series1Maker product pagelogitech.com/en-us/shop/p/mx-ergo-s-wireless-trackball-mouseRead 23 October 2026

Not available

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

910-007259, 910-0072471Maker product pagelogitech.com/en-us/shop/p/mx-ergo-s-wireless-trackball-mouseRead 23 October 2026Rendered Specs and Compatibility identifies standard 910-007259 and Plus wedge bundle 910-007247. Original micro-USB MX Ergo excluded.

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

Not available

Not available

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

Not available

Not available

Status

Available1Maker product pagelogitech.com/en-us/shop/p/mx-ergo-s-wireless-trackball-mouseRead 23 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.

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.

$99.9914Press releaselogitech.com/blog/2024/09/13/work-in-your-comfort-zone-with-logitechs-upgraded-wireless-trackballsRead 23 October 2026US MSRP 99.99 dollars for either standard or Plus at launch. Tax excluded.

$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

Not available

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

US1Maker product pagelogitech.com/en-us/shop/p/mx-ergo-s-wireless-trackball-mouseRead 23 October 2026

Not available

ColoursiThe maker's own colour names

Graphite1Maker product pagelogitech.com/en-us/shop/p/mx-ergo-s-wireless-trackball-mouseRead 23 October 2026

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

Ergonomic1Maker product pagelogitech.com/en-us/shop/p/mx-ergo-s-wireless-trackball-mouseRead 23 October 2026

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

Trackball1Maker product pagelogitech.com/en-us/shop/p/mx-ergo-s-wireless-trackball-mouseRead 23 October 2026

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

Shape

2 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-handed2Maker product pagelogitech.com/en-us/shop/p/mx-ergo-s-wireless-trackball-mouseRead 23 October 2026Sculpted right-hand body and thumb-operated ball. Exact maker photos show a solid upper shell. The 20-degree tilt is a trackball-base adjustment, not a vertical mouse angle.

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.

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

Not available

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

Not available

Not available

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.

Solid2Maker product pagelogitech.com/en-us/shop/p/mx-ergo-s-wireless-trackball-mouseRead 23 October 2026

Not available

Swappable parts

Not available

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

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

Trackball position

Thumb2Maker product pagelogitech.com/en-us/shop/p/mx-ergo-s-wireless-trackball-mouseRead 23 October 2026

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

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.

Length132.5Maximum width99.8Maximum height51.4mm(5.2 × 3.9 × 2 in)3Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 October 2026Maker Height is front-to-rear length and Depth is body height. Plus table repeats bare mouse dimensions.

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

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.

259g(9.1 oz)3Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 October 2026With metal plate and internal battery, without receiver. Without metal plate is 164 g. Plus accessory wedge is excluded.

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

Not available

Not available

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

Not available

Not available

Sensor

8 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.

Advanced Optical Tracking4Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 October 2026

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.

Logitech4Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 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

Not available

Sensor type

Optical4Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 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.

2,048DPI4Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 October 2026Exact shop and maker datasheet corroborate 2048. Conflicting support 4000 firmware number has no version or update evidence.

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.

512DPI4Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 October 2026Support duplicates incompatible 100-2000 software and 4000 firmware row. Published exact shop and maker datasheet corroborate 512-2048. Those take precedence.

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.

Not available

Not available

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.

Not available

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.

20IPS4Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 October 2026Published greater than 20 IPS threshold, not an exact ceiling.

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.

10G4Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 October 2026Published greater than 10 G threshold, not an exact ceiling.

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

Not available

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 MX Ergo S

Data connection	Polling rate (Hz)	Receiver requirement
2.4 GHz	125	Included Logi Bolt USB receiver

Source5Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 October 2026Wireless Report Rate 125 Hz. Bluetooth is an interval-dependent 88-133 Hz range. No single fixed Bluetooth rate stored.

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

125Hz=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)

125Hz=CalculatedFrom Documented polling rates by connection

250Hz=CalculatedFrom Documented polling rates by connection

Polling rate (Bluetooth)

Not available

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

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

1 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.

Not available

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.

3million6Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 October 2026Official left/right durability 3M cycles. Mynavi review quotes unnamed maker contact saying 5M. Official product table retained.

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

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

7 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.

97Owner's manualsupport.logi.com/hc/en-us/articles/25066408771479-Getting-Started-MX-Ergo-SRead 23 October 2026Complete control diagram: left/right, back/forward, wheel click, two tilt directions, precision and Easy-Switch total nine. Maker numeric eight conflicts with its own complete named control list. Power slider excluded.

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.

67Owner's manualsupport.logi.com/hc/en-us/articles/25066408771479-Getting-Started-MX-Ergo-SRead 23 October 2026

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.

17Owner's manualsupport.logi.com/hc/en-us/articles/25066408771479-Getting-Started-MX-Ergo-SRead 23 October 2026Precision button beside ball is the left side-wall input. Back/forward sit on top beside left main plate and are excluded by schema definition.

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

Left7Owner's manualsupport.logi.com/hc/en-us/articles/25066408771479-Getting-Started-MX-Ergo-SRead 23 October 2026

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.

Yes7Owner's manualsupport.logi.com/hc/en-us/articles/25066408771479-Getting-Started-MX-Ergo-SRead 23 October 2026

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.

No7Owner's manualsupport.logi.com/hc/en-us/articles/25066408771479-Getting-Started-MX-Ergo-SRead 23 October 2026Complete control diagram has no profile or dedicated gesture control.

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.

No7Owner's manualsupport.logi.com/hc/en-us/articles/25066408771479-Getting-Started-MX-Ergo-SRead 23 October 2026

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, Tilt7Owner's manualsupport.logi.com/hc/en-us/articles/25066408771479-Getting-Started-MX-Ergo-SRead 23 October 2026Notched precision wheel with tilt. No free-spin control appears in complete diagram.

Not available

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

None7Owner's manualsupport.logi.com/hc/en-us/articles/25066408771479-Getting-Started-MX-Ergo-SRead 23 October 2026

Not available

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

No7Owner's manualsupport.logi.com/hc/en-us/articles/25066408771479-Getting-Started-MX-Ergo-SRead 23 October 2026

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

2 of 6 differ

Shell material

ABS, PC, Other6Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 October 2026Materials table names PCR ABS, PC, rubber and metal. Rubber and unspecified metal map to other. Polymer percentages are not material proportions.

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.

Matte10Spec databaseifixit.com/Device/Logitech_MX_Ergo_S_Advanced_Wireless_TrackballRead 23 October 2026Exact model device page names durable matte finish. Maker separately names soft rubber grip.

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.

Not available

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

2 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.

Yes7Owner's manualsupport.logi.com/hc/en-us/articles/25066408771479-Getting-Started-MX-Ergo-SRead 23 October 2026

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.

USB-C7Owner's manualsupport.logi.com/hc/en-us/articles/25066408771479-Getting-Started-MX-Ergo-SRead 23 October 2026

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

5 of 13 differ

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

2.4 GHz, Bluetooth8Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 October 2026Only Bluetooth and Bolt carry input. USB-C is charging only.

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 Bolt8Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 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.

5.28Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 October 2026

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.

27Owner's manualsupport.logi.com/hc/en-us/articles/25066408771479-Getting-Started-MX-Ergo-SRead 23 October 2026Two Easy-Switch channels support pairing over Bluetooth. One host selected at a time.

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.

27Owner's manualsupport.logi.com/hc/en-us/articles/25066408771479-Getting-Started-MX-Ergo-SRead 23 October 2026

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

Button7Owner's manualsupport.logi.com/hc/en-us/articles/25066408771479-Getting-Started-MX-Ergo-SRead 23 October 2026

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-A8Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 October 2026

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

Not available

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.

No13Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 October 2026Complete two package lists include no extender.

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.

10m8Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 October 2026Published 10 m. Depends on user 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, Android8Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 October 2026Receiver Windows 10/11+, macOS 12+, Linux, ChromeOS. Bluetooth adds iPadOS 15+ and Android 12+.

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

5 of 17 differ

Battery type

Li-Po9Maker spec sheet (PDF)device.report/m/58b51a4706b71123c78b1d4b6e1f88d1f2459e8d9038f4272f81d4781a3c5beb.pdfRead 23 October 2026Exact Logitech EMEA 910-007260 datasheet technical specs explicitly rechargeable Li-Po 500 mAh. Shared mouse hardware, not the differing pack weight.

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.

Not available

Not available

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

500mAh8Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 October 2026

Not available

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

No8Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 October 2026

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.

120days8Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 October 2026Up to 120 days normal use. Duty cycle unspecified. Apparent copied HI 500h and LO 18-month rows rejected because no such modes documented in guide.

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.

Not available

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

USB-C7Owner's manualsupport.logi.com/hc/en-us/articles/25066408771479-Getting-Started-MX-Ergo-SRead 23 October 2026

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.

120min8Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 October 2026Official empty-to-full two hours at 5V 500mA.

Not available

Quick charge

Charge time1 minUse time24 h8Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 October 2026One minute gives up to 24 hours of use. Battery life varies with use and computing conditions.

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

No13Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 October 2026Complete package lists include no dock.

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

LED7Owner's manualsupport.logi.com/hc/en-us/articles/25066408771479-Getting-Started-MX-Ergo-SRead 23 October 2026

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.

No8Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 October 2026Specification explicitly Backlighting: No. Status LEDs excluded.

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

LED7Owner's manualsupport.logi.com/hc/en-us/articles/25066408771479-Getting-Started-MX-Ergo-SRead 23 October 2026

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

5 of 9 differ

Software

Logi Options+8Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 October 2026

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, macOS8Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 October 2026

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

Yes11Maker product pagelogitech.com/en-us/shop/p/mx-ergo-s-wireless-trackball-mouseRead 23 October 2026Exact model supports Smart Actions in Logi Options+. These are software automation sequences, not onboard macros.

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

Yes11Maker product pagelogitech.com/en-us/shop/p/mx-ergo-s-wireless-trackball-mouseRead 23 October 2026

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

Yes12Reviewdigitalcameraworld.com/tech/laptops/logitech-mx-ergo-s-mouse-reviewRead 23 October 2026Key features explicitly application-specific workflows in 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.

MX Ergo S Advanced Wireless Trackball, Detachable Wedge (Plus bundle only), Logi Bolt Receiver, Document13Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 October 2026Union of documented standard and Plus contents. Neither includes charging cable. Variant rows specify each complete package.

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 MX Ergo S

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.

No13Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 October 2026Complete package lists include no spare skates.

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

No13Maker product pagesupport.logi.com/hc/en-us/articles/25066383214871-Specification-MX-Ergo-SRead 23 October 2026Complete package lists include no grip tape.

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/mx-ergo-s-wireless-trackball-mouse1Maker product pagelogitech.com/en-us/shop/p/mx-ergo-s-wireless-trackball-mouseRead 23 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-us/articles/25066383214871-Specification-MX-Ergo-S1Maker product pagelogitech.com/en-us/shop/p/mx-ergo-s-wireless-trackball-mouseRead 23 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/25066408771479-Getting-Started-MX-Ergo-S1Maker product pagelogitech.com/en-us/shop/p/mx-ergo-s-wireless-trackball-mouseRead 23 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 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/mx-ergo-s-wireless-trackball-mouseRead 23 October 2026US limited hardware warranty. Other regions differ.

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.