Jawbone Up 24 Sleep/Activity Monitor

Use the Jawbone UP24, in Medium, to track your sleep, food intake and activity levels. It is made of hypoallergenic TPU rubber, making it comfortable on your wrist. This Jawbone UP24 wristband comes in an onyx color, so it looks good with whatever you're wearing.

It also syncs wirelessly via Bluetooth, so your activities are tracked in real-time.