Main function: heart rate monitor blood pressure & oxygen monitor fatigue sleep monitor messages remind(Facebook,Twitter and others) bluetooth control taking photo sedentary reminder anti-lost step counter distance measurement OLED senstive touch screen calories alarm clock Ip 67 waterproof phone call remind Product Features: [ Message notification ] N108 can synchronize the notification from your phone and display the message, then notice you by vabration.(SMS, facebook, skype, Twitter, whatsapp, wechat, QQ, message, mission reminder, incoming call reminder,etc)(iphone does not have SMS reminder) [ Healthy related functions ] Blood pressure monitor, monitor oxygen content in human red blood cells, heart rate monitor,sports tracker, steps counting, sedentary reminder, calories burned measuring, sleep management, fatigue index etc. [ Convenient functions ] Remote selfile control, distance calculation, third generation of Gorilla tempering touch screen provide excellent anti-scratch and anti-crusing protection etc. [ Main feature ]Compatible with Android 4.4 and above, IOS above 8.0 ; Bluetooth 4.0;Dustproof and IP67 waterproof; 0.96 inch screen; 80mA battery; third generation of Gorilla tempering touch screen. [ IP67 waterproof ] This smart band can be immersed under water for up to 1m for 30 minutes,don't need to worry about it when you wear it to wash face, taking a bath. [ Additional infomation ]Charging time: 1.5 hour fast charging,7 days working time&15 days long standby time - build in lithium battery with USB easily charging,environmental friendly silicon material make it light weight and comfortable to use. Specification: Screen dimension: OLED 0.96 inch Material: Metal/PC/silicone Waterproof level: IP-67 Bluetooth chip: NRF51822 Bluetooth version: 4.0BLE Charging: USB Battery: 80mAh polymer battery Charging time: 1.5 hours Working time: 8-10 days Standby time: 35 days Support: IOS8.0 and above, Android 4.4 and above Packaging: 1 x Heart Rate Monitor Smart Band 1 x USB charging cable 1 x User manual Would you please note that: - This smart fitness tracker does not have other functions that mensioned on the user instructions.