? IMPORTANT NOTE: This fitness tracker doesn't need the usb charger cable. Just pull the strap and find the golden chip-mounted part for charging it 2 hours to activate firstly. It is not compatible with Samsung J3, J5, S3, S9, S9+ Smartphones, Windows, PC, iPad or tablet. IP67 waterproof can't support swim more than 30 minutes.
? SUPPORT MULTI-SPORTS TRACKING: This activity tracker can track all-day activities. 14 training modes( including yoga, tennis, football, dancing, etc ) help you better understanding every activity data of yourself. 4 customizable clock faces suit your taste in different styles. Professional workout App will help you get a better understanding of your fitness level and health.
? HEART RATE & SLEEP MONITOR: The smart bracelet can monitor your heart rate to help you do exercise scientifically and accurately monitor total effective sleeping time and motions every night, you can better understand your sleeping quality.
? CALLS/ TEXT REMINDER & SEDENTARY ALERT: It will vibrate to alert you if your phone receives a phone call, text, facebook notice (App: "VeryFitPro", the bright OLED tap display can not show the very long massages considered the size of the screen). You will never miss important messages. Sedentary reminder will give you a notice to relax when you focus on your work too much time.
? LONG-LASTING BATTERY & WIDER COMPATIBILITY: Full charge requires only about 1-2 hours and the standby time can be up to 6-8 days with full power. App supports most smart phones with Bluetooth 4.0 or above, iOS 7.0 or above Android 4.4 or above.