http://www.tinydeal.com/de/no1-d2-s...eart-rate-monitor-sleep-monitor-p-156497.html Perfect Smartphone Companion Phone Calls and SMS Reminder Connected to your smart phone, NO.1 D2 smart watch will remind you when calls or SMS coming. Bluetooth 4.0 Connection Lower power consumption than Bluetooth 3.0. IP67 Water Proof Protect NO.1 D2 smart watch from water and dust (Not for shower or swimming). Heart Rate Monitor Test your heart rate, help gauge your intensity during workouts to improve overall calorie tracking. UV Monitor Monitor the rate of UV, help you keep your skin healthy during travel. Anti-lost When the Bluetooth is disconnected or the phone is out of the Bluetooth distance, the watch will alert. Pedometer Count how many steps you have walked, enjoy doing sports. Sleep Monitor Monitor whether your sleeping is well or not. Sedentary Reminder Set it to remind you to walk or exercise after a long time sit.