Slimblade Trackball
Slimblade Trackball Pro
new. wireless version came out in 2022-11-08. Buy at amazon
- Includes choice of Bluetooth, 2.4GHz wireless and wired connection options for maximum flexibility. Compatible with Bluetooth BT3.0/BT5.0. Features 2.4GHz wireless dongle (USB-A with USB-C to USB -A adapter) and 1.5m USB-C to USB-A charging cable (USB-C port on the trackball).
- Rechargeable battery provides 4 months battery life with single charge via USB-C port
- Low-profile shape allows all-day comfort for both right-handed and left-handed users. The trackball takes up less desk space than what is needed to operate a mouse and is more comfortable during extended use because it requires less arm and wrist movement.
- Dual sensors accurately track the large 55mm ball, giving users better cursor control that requires less hand and wrist movement. Provides highly accurate and responsive cursor tracking and scrolling.
- Simply plug in the USB cable to the trackball and users will be up and running quickly. Free downloadable KensingtonWorks software provides an easy-to-configure personalized experience, giving users the ability to assign a wide variety of program functions to 8 sets of programmable buttons with KensingtonWorks installed
The Kensington Slimblade Trackball came out in 2009.
This is one of the better trackball loved by the trackball users community. Featuring large ball, and 4 large buttons.


Ball Size
Ball diameter: 55 mm.
Buttons
The 2 buttons on the north side are harder to reach. The buttons near you easier to press, by thumb.
Twist Ball to Scroll
You twist the ball to scroll, like rotating earth. It's awkward. Not the best.

Work in Linux?
Yes. Works in Linux out of the box.
- Lower left button is left click.
- Lower right button is right click.
- Top left button is double click.
- Top right button is browser back button.
- Twisting for scroll also works.
You can remap mouse buttons in Linux using xinput
.
[see Linux: How to Swap Mouse Buttons]
Slimblade vs Expert Mouse

Of all web reviews, there is no consensus of which is better. Some prefer Slimblade, some Expert Mouse.

Slimblade vs L-Trac Trackball
Trackball Size Comparison

more: Trackball Size Comparison