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Nulea M505A Wireless Trackball Mouse Ergonomic 44mm Index Finger Control | Rechargeable rollerball mouse with 5 DPI levels,Bluetooth connection,smooth tracking,compatible with PC Mac Windows-Green
Nulea

Nulea M505A Wireless Trackball Mouse Ergonomic 44mm Index Finger Control

Bottom line: The Nulea M505A Wireless Trackball Mouse Ergonomic 44mm Index Finger: 44mm index-finger ball moves the cursor without moving your arm; main trade-off: index-finger trackballs take days of retraining from a standard mouse.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For keyboards, mice, headsets and other PC peripherals, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Pros & Cons

Pros

  • ✓ 44mm index-finger ball moves the cursor without moving your arm
  • ✓ Rechargeable battery rated up to 60 days per full charge
  • ✓ Pairs 3 devices at once, Bluetooth or USB receiver
  • ✓ 5 DPI levels switchable from a button underneath
  • ✓ Works on any surface: couch, bed, cluttered desk

Cons

  • ✗ Index-finger trackballs take days of retraining from a standard mouse
  • ✗ DPI button sits on the underside, so you flip the mouse to change it
  • ✗ Ball needs periodic removal and cleaning to keep tracking smooth
  • ✗ Shaped for one hand position, so grip preference matters a lot

Manufacturer description

The Nulea M505A wireless trackball mouse moves your cursor with a 44mm index-finger ball instead of your whole arm, so your hand stays planted while you work. That matters if your desk is crowded, or if you're working from a couch, a bed, or a train tray table: the trackball tracks on any surface, because it never touches one. Five DPI levels, cycled from a button on the underside, let you drop to fine steps for photo edits or spreadsheet cells and jump back up for wide multi-monitor sweeps. Connectivity covers three paired devices at once over Bluetooth or the bundled USB receiver, with a…

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SpecPicks Verdict

SpecPicks scored Nulea M505A Wireless Trackball Mouse Ergonomic 44mm Index Finger… using a rating × review-volume × price-fit model applied to published specs and reviews across the gaming peripherals category. Nulea's gaming peripherals lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for gaming peripherals of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

How long does the battery last on the Nulea M505A?

Nulea rates the built-in rechargeable battery at up to 60 days on a single full charge, so most users recharge every month or two rather than weekly.

Can I use this trackball with both my Mac and my iPad?

Yes. The M505A connects to up to 3 devices at once over Bluetooth or the USB receiver, and lists PC, laptop, iPad, Mac, Windows, and Android as compatible. A mode button switches between them.

Does the trackball work without a mouse pad or desk space?

It does. Because the 44mm ball is moved by your index finger rather than by sliding the body, the mouse can sit on a couch, a bed, or a cluttered desk and still track.

How do I change the DPI setting?

There are 5 DPI modes, cycled with a button on the bottom of the mouse. You lift and flip the M505A to reach it, so it is a set-and-forget adjustment rather than an on-the-fly one.

Is the Nulea M505A worth it compared to a regular wireless mouse?

The trade is a learning curve on index-finger control in exchange for less arm movement and near-zero desk space. Check the product listing for current warranty terms.

Key Features

  • Ergonomic Design for Comfort: Nulea M505 trackball mouse is designed to fit your hand greatly, reducing muscle stress and promoting comfort. The 44mm index finger trackball enhances cursor control and reduces arm stiffness, making it an effective solution for treating wrist pain.
  • Precise Tracking with Adjustable DPI: With 5 different DPI modes, the rollerball mouse allows you to adjust cursor movement for superior accuracy and control. You can easily switch between DPI modes using the button located at the bottom of the mouse.
  • Great for Small Work Spaces: The smooth index finger trackball allows you to navigate your cursor on practically any surface, making it ideal for small workspaces. Whether you're working at a cluttered desk or on a couch or bed, Nulea trackball mouse can boost your efficiency.
  • Long-Lasting Battery: Our ergonomic mouse features a built-in rechargeable battery that lasts up to 60 days on a single full charge. You can use our wireless mouse trackball for extended periods without worrying about charging it.
  • True Wireless Freedom: Our wireless trackball mouse can connect to up to 3 devices via Bluetooth or USB receiver, making it fully compatible with PC, laptop, iPad, Mac, Windows, and Android. You can easily switch between devices by pressing the mode button, improving your efficiency.

Full Specifications

BrandNulea
ColorE-Green
Range10.0 meters
Model NameM505
Style NameModern
Unit Count1 Count
ConnectivityBluetooth, USB
Model NumberM505
Power SourceBattery Powered
CompatibilityPC, Switch, Android, Mac
Button Quantity5
Connection TypeWireless
Mfr Part NumberM505A
Special FeatureErgonomic Design
Antenna LocationIndoor
Hand OrientationRight
Compatible DevicesPersonal Computer
Enclosure MaterialPlastic
Movement DetectionTrackball
Additional FeaturesErgonomic Design
Full listing titleNulea M505A Wireless Trackball Mouse Ergonomic 44mm Index Finger Control | Rechargeable rollerball mouse with 5 DPI levels,Bluetooth connection,smooth tracking,compatible with PC Mac Windows-Green

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Nulea M505A Wireless Trackball Mouse Ergonomic 44mm Index Finger Control | Rechargeable rollerball mouse with 5 DPI levels,Bluetooth connection,smooth tracking,compatible with PC Mac Windows-Green is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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Nulea M505A Wireless Trackball Mouse Ergonomic 44mm Index Finger Control | Rechargeable rollerball mouse with 5 DPI levels,Bluetooth connection,smooth tracking,compatible with PC Mac Windows-Green
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