Main Features:New heart rate monitor: adopted with HUAWEI TruSeen heart rate technology, the Honor 4 measure heart rate for all day, accurate and faster Sleep monitor: 8 sleep mode, 6 typical sleep problems identify automatically provide sleep improvement advices and personalized sleep services. Care about your sleep quality and adjust sleep habitsSedentary reminder: the smart bracelet will inspire you to move if you’ve been sitting too muchPedometer: keeps your steps and shows your daily calorie burnedMultiple sports management: displays the real-time status on screen, records more than 20 types of sports and tracks every aspect of your training like sports steps, distance, calories, etc.50M IP68 Waterproof: support swimming stroke recognition function. Can withstand temporary soaking like raining, bathing, hand washing, etc. Not support hot water showerNPC payment: support for Alipay, convenient payment for bus, subwayMessages notification: messages on your phone can be pushed to your Honor 4 immediatelyConnect App and use intelligently: download and connect with HUAWEI sport health App, the data of motion, sleep and health advice can be provided, health goal setting, sports management schedule and GPS running record are all supportedParameters:Display: AMOLED Waterproof level: IP68, 50MSystem requirement: for iOS 9.0 and above, Android 4.4 and aboveCharging: 2 pinBattery capacity: 100mAh Li-ion battery (included)Charging time: 1.5 hoursWorking time: 6 days (sleep monitor on, heart rate monitor on), 9 days (sleep monitor on, heart rate monitor off), 14 days (sleep monitor off, heart rate monitor off)Standby time: 20 days Wrist strap: siliconeBluetooth version: Bluetooth 4.2, 2.4GHz