Kensington Expert Wireless Trackball Mouse

Editor rating

4.0/5 on 30 May 2021

User's rating

2273 reviews


  • Large ball is comfy to use and provides enhanced precision over a small one.
  • Four full-size buttons, customizable to your needs.
  • Dedicated scroll wheel included.
  • Cushy palm rest attaches to the unit.


  • Trackball body has a built-in positive tilt - back higher than the front - which can cause back-bending of the user's wrist.
  • There's no mechanism other than gravity to hold in the large ball, which makes the trackball tricky for mobile work.
  • As of our last test, the included scroll wheel was less than smooth in its action.
  • Palm rest attachment consists of plastic pegs, which can break off.


If you're looking for the biggest trackball available, the confusingly-named Kensington Expert Mouse is it. The product suffers from a few minor flaws, but gets a lot fundamentally right.

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