We have a long form review on this trackball mouse! Here is a short video review.
Kensington Expert Wireless Trackball Mouse
- 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.