Sure there are a ton of fitness trackers out there, but Withings Go has a mind of its own.

A mind that lasts up to eight months before you have to recharge it. Go is the latest innovation to automatically track steps, distance and calories, monitor your swims and trigger sleep analysis in real time, at all times. Plus it’s legible in sunlight and underwater so you can always glance at how active you’ve been and how far you are from achieving preset goals. It auto-syncs with the Health Mate app to also provide metrics on your activity and sleep via graphs, rankings and insights. Just clip it on to your clothes or wear it on your wrist like a watch.

For its versatility, Withings Go is quite affordable at $70. Considering all the talking belt buckles and smart sneakers CES revealed this week, we think this device is actually pretty reasonable.