SMA-07 Fitness Tracker IP68 Wristband Watch Smart Bracelet Compatible with Android Phones and iPhone 5 5s 6 6s 6Plus 7 7s 7plus 8 X for Men for Women Gift 1)Two Mode of dynamic heart rate monitor: a.Monitor your heart rate 24 hours, you can set in Application, every 15 or 30 or 60 minutes checking once, then SMA Wristband will monitor your heart rate every 15 or 30 or 60 minutes once automatically. After you contact your phone by bluetooth And Application will supply graph for review.b.Long press the touch button switch on heart rate, real-time heart rate monitor. 2) IP65 waterproof and anti-splash, support wash hand and wear in the raining day. But can't support swimming and shower. Battery life time can last 15 days charge once. Charging time: 2.5 hours. 3) Call/Message Reminder: When there is message incoming, it will vibrate to remind you,and call/message content display on the wristband.Support 38 different language message display. 4)Function:Track Steps,Calories,Distance,Pace,Goal,Sleep,Sedentary,Anti-Lost,and Support 8Alarmssetting, vibration reminder,Never miss any important meet. 5)Compatibility: Android 4.3 iphone 5/5s/6/6s/plus/7/plus or above, iOS 8.0 or above, Bluetooth 4.0 or above. One year warranty