Fitbug Orb
Credit: Photograph by Plamen Petkov

An entry-level option, the Fitbug Orb, much like the others, logs steps, sleep, and the time you're active. It doesn't have a screen or track steps climbed, though. It is versatile and can be stowed in your pocket or on a variety of included accessories, from lanyard to key fob. However, while access to its online suite comes free of charge, it consistently failed to sync. [$49.95; usa.fitbug.com]