Elegant Design with OLED Touch Screen?The design combined with fashion and sports, racker has 64*48 OLED display screen looks clearly, slim silicone band is easy and comfortable to wear. The weight of item is very light that not feel anything on your wrist. Healthy HR Tracker?Fitness tracker will help you get better information about your fitness and physical index, check your physical index like distance, steps, calories burned. It monitors effective sleeping time and motions every night accurately; Heart Rate and Sleep Monitoring: Track heart rate continuously on your wrist to maximize workouts, better track calorie burn and get a clearer picture of your health; Never Miss Call and Message: See call, SMS and SNS notification on your wrist to keep your phone out of sight and your goals in focus. This tracker requires iOS 7.1&Android 4.4 above, Bluetooth 4.0 (Smartphone only, not for PC) Battery And Waterproof?The Fitness tracker could standard using 5 days, only need one hour to charge full power. Don't need take off when washing and taking cold shower, however don't wear it to Swimming. Pairing outfit easily and add style in your life. Wide Compatibility?The App supports smart phones with Bluetooth 4.0. Support system: iOS 7.0 or above, Android 4.4 or above. If you have any question, please do not hesitate to contact us, we will help you solving. Packing list: Smart Watch*1, USB Charger*1, User manual*1