$80 Manufacturer Withings, withings.com
Features Tracks steps, running, swimming, calories burned, sleep, and distance
The allure of a cool, capable smartwatch is strong, but sometimes all you need is a simple activity tracker. Withings Go, the company’s most affordable wearable yet, is just that: a small, circular sensor that can be popped out and placed into either a traditional watch form factor or a pedometer-like clip.
Included in the box are the watch and clip attachments in the color of your choice. Each configuration shows off its rather novel E-Ink screen, which lasts for up to eight months at a time, thanks to its cell battery. The screen also doubles as a button, which you can push down to show more info. Meanwhile, pressing a finger down on the screen…