Jawbone throws health junkies a proverbial bone with the new Up3.

Like a stalker obsessed with tracking your well being, the upgraded features include an accelerometer, temperature sensor, heart beat sensor and more. Awake or asleep, this obsessive device will stay on your wrist and concern itself with nothing other than your health.

Very thoughtful and creepy at the same time, if you think about it. Just make sure to put it down gently when you need to take it off.