This device tracks all-day activity, including steps, distance, hourly activity, active minutes, and calories burned. In addition to tracking your sleep, it can set silent alarms that wake you by buzzing on your wrist. The battery can last up to five days without constant charging. It can also record workouts like walks, swimming (it's water-resistant up to 50 meters), and bike rides with SmartTrack. You'll get call, text, and calendar alerts as well.
Promising review: "I have always been skeptical about fitness trackers but decided to give one a try. I am amazed at how motivating it is. I love it. I haven’t used all the functions yet. I have used it for steps, alarms, activity tracking, calorie burn, sleep and heart rate. It gives very clear information both on the tracker and on the app. It was really easy to set up and is light and comfortable to wear. I got the pink one, which looks nice. I have my daily and weekly goals and I get feedback and messages on how I’m doing. I really love it." —Lin
Get it from Amazon for $79 (available in three colors).