Fitbit Blaze Smart Fitness Watch, Black, Silver, Small

Note that notifications are not available on Windows 10 devices | Charge time one to two hours. Bluetooth 4.0. Syncing range 20 feet. Fitbit Blaze is sweat, rain and splash proof | The minimum and maximum circumference range between 140 - 170 millimeters | Track steps, distance, calories burned, floors climbed and active minutes | Get PurePulse continuous, wrist-based heart rate monitoring with no uncomfortable chest straps | See simplified heart rate zones for quickly checking exercise intensity during workouts | Use multi-sport tracking to track runs, cardio, cross-training, biking and more | Effortlessly and automatically record workouts to your dashboard with SmartTrack