Highlight Features: OLED 0.96 Inch Screen: View your health data on a bright and clear OLED 0.96 inch screen and customize your clock face that suits your taste. Call Alert: The tracker vibrates and call is displayed on screen when there is an incoming call. Sedentary Alert: Set reminders for periods of time of inactivity. Alarm Alert: Set silent alarms on the tracker to wake you up and not disturb your partner. SNS Alert: Receive notifications from other apps (Facebook, WhatsApp, LinkedIn, Instagram, and Twitter) on your tracker screen. SMS Alert: Enable the function to read incoming text message on your tracker screen. Remote Camera Shooting: Operation on the screen could remotely control photography shooting. Multifunction Health Manager: Heart rate monitoring and activity tracking, auto sleep tracking to help you know your everyday health status Smart Notification: Receive call and message notifications and alarms on your wrist so that you never miss things that matter; sedentary alert to remind you to move for refreshment Built-in USB Plug: Built-in USB plug make it easy to charge with any USB block and computer; no charging cable and dock needed; one single charge gives you up to 7 days of battery life 16-Sport Trackin: Tracks up to 16 sports such as running, spinning, workout, dancing, yoga,swimming and more, helping you adjust your exercise intensity for better results. 7+ Days Battery & Swimming Waterproof： This watch also has IP68 waterproof standard.Built-in USB plug make it easy to charge with any USB block and computer; no charging cable and dock needed; one single charge gives you up to 7 days of battery life. SPECIFICATIONS Model: S5 Bluetooth Version:Bluetooth 4.0 or later Bluetooth Transmission Distance:10 Meters (32.8 feet) Screen size: 0.96 inch Screen type: OLED Material: TPU+ABS; strap: TPU Dimension: suits for wrist Size: 5.4 inch - 7.6 inch Battery type: Li Battery Battery capacity: 105mAh Working time: 7-10 days Charging method: USB charging Charging time: 1-2 hours Weight: 1.76 oz (50g) This tracker requires iOS 7.1 & Android 4.4 above, Bluetooth 4.0 (Smartphone only, not compatible with iPad, PC or Tablet) Note: IP68 water resistant, you can wear the tracker when running in rains and washing hands, but do not wear it when showering or diving.