Waterproof Smart Bracelet: Heart Rate & Sleep Tracking

Everything your wrist can tell you, in one band

• Heart rate, around the clock

  The band logs your heart rate through the day and overnight, so you see patterns instead of single snapshots. A resting heart rate that creeps up over a week of poor sleep shows up in the graph before you feel it. Keep it snug and it stays on through workouts, errands and the walk to the car.

• Sleep you can actually read

  Sleep monitoring turns your night into a readable summary on the color screen and in the companion app. You see how long you stayed asleep and where the night went. Compare a late-work week with a quiet one and the difference is hard to argue with. Check the summary after you wake, before the coffee.

• Alerts on your wrist

  Incoming notifications push to the band, so you glance at your arm instead of digging through a bag for your phone. Calls and messages stop interrupting the meeting you are sitting in. The screen is bright enough to read at a glance, and the band is waterproof, so it handles the shower and sweaty sessions without a second thought. Browse fitness trackers if you want to compare a few more options.

Three steps from box to first night

1. 1
   Charge and pair

   Charge the band, install the companion app on your phone and pair the two over Bluetooth. Set your profile so heart rate zones and sleep targets make sense for you.

2. 2
   Wear it snug

   Place the band about a finger's width above your wrist bone. A snug fit keeps the optical sensor in contact with your skin, which makes overnight readings cleaner.

3. 3
   Check the morning summary

   After a week, open the app each morning. The first few days build a baseline, and the sleep and heart rate trends get clearer from there.