Check Out the Newest Jawbone Fitness Trackers

The Up4 ($200) tracks it all: sleep, steps, distance, calories, and more — including heart rate monitoring so you can track your resting heart rate (similar to the Fitbit Charge HR). Also new: the UP4 syncs with your existing American Express account so you can tap to pay at any cash register that accepts contactless payments. No more having to reach for that sweaty $20 bill to pay for your water after a long run! The UP4 will be available in the Summer.