Slimblade Trackball

Ball diameter: 55 mm. This is same size as Kensington Expert Mouse.

The 2 buttons on the north side are harder to reach. The bottom left is the easiest to press, with thumb. (if you use it with right hand.)

The Slimblade also features a twist scroll wheel. You twist the ball to scroll, like rotating earth. It's awkward. Not very good in comparison to a scroll ring or scroll wheel.

Work in Linux?

Yes. Works in Linux out of the box.

1. Lower left button is left click.
2. Lower right button is right click.
3. Top left button is double click.
4. Top right button is browser back button.
5. 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's no consensus of which is better. Some prefer Slimblade, some Expert Mouse.

Slimblade vs L-Trac Trackball

Trackball Sizes Comparison

more: Trackball Sizes Comparison