19: Fitbit Force
Slowly but surely, Fitbit has refined its step- and sleep-tracking hardware over the past few years, and it all culminates in the Force.
This simple wristband includes a bright OLED display that reveals your steps taken, miles covered, floors climbed, and calories burned, all in real time. The display can even function as a simple digital watch. Sync the wristband with your smartphone or desktop PC, and you can drill further into your step data, and also learn more about the quality of your sleep.
The Force may not make sense if you already wear a wristwatch, but otherwise it’s one of best activity-tracking wristbands around.