The Review Score explained

Although I recommend any Trackball mouse above a regular mouse, this is the scale I use to rate the trackballs. I use a 5 star rating scale, including half stars. Most of the trackballs I have rated are 3 stars (Good), or more.

Not Rated

Not rated

Very PoorVery Poor

1.0 Stars: Very Poor

Deeply flawed and barely functional. You’re better off using a regular mouse.

PoorPoor

1.5 Stars: Poor

Bad ergonomic design, lacks important features, difficult to use.

MediocreMediocre

2.0 Stars: Mediocre

Usable, but not particularly good in anything.

OKOK

2.5 Stars: OK

Not the best choice, but it can get the job done. Better than a regular mouse.

GoodGood

3.0 Stars: Good

Good qualities outweigh the bad ones, but there might be better trackballs available in the same category.

Very GoodVery Good

3.5 Stars: Very Good

Maybe a few cons, but go for it, this is a trackball that you will be happy with.

ExcellentExcellent

4.0 Stars: Excellent

A trackball loved by users and recommended by me as a high quality trackball.

OutstandingOutstanding

4.5 Stars: Outstanding

This trackball is really the top of its category, a quality trackball even for professionals.

PerfectPerfect

5.0 Stars: Perfect

It’s virtually impossible to create a perfect trackball for all users, but if there is one, we will find it.

Editors Choice

Editor’s Choice: these are my personal favorite trackballs.
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March 14, 2016