Product description: * 0.96'' IPS 160 * 80 resolution color screen * IP68 waterproof (you can wear it in the rain, wash your hands, but don't put it in hot water) * Built-in 105mAh battery, charging time is about 1.5H, normal use time is about 10 days, standby time is about 20 days *Bluetooth push support (call, SMS, application news alert: QQ, Facebook / Twitter / WeChat, etc.) * Support heart rate / blood pressure / blood oxygen monitoring (this function is for reference only, can not be used for medical data) *Pedometer (sports step, calorie consumption, exercise mileage record) * Support multiple sports modes (running / riding / climbing / swimming / ping pong / walking, etc.) * APP name: ''Lefun'' * detachable shoulder strap * Charging mode: USB dedicated charging cable *Compatible system: BT4.0, for Android4.4 and IOS8.0 or higher *Main features: sedentary reminder, multi-sport mode, full font push, WeChat campaign, weather forecast, reject call, search device, alarm reminder, photo, drinking reminder, gesture control, do not disturb mode, reminder mode, sleep monitoring , G-sensor * APP supports 10 languages: Simplified Chinese, English, German, Russian, French, Portuguese, Spanish note: Please do not read it compared to hospital equipment, it is not a medical device! Before using, scan the QR code on the manual to download the app and connect it to the watch via the app. package: 1*smart wristband 1* instruction manual Note: This is not the Xiaomi Band 3. The smart wristband is not for medical use, please do not buy to check health (heart problems, blood pressure problems). It is not suitable for professional use. Just refer to it.Note: This is not the Xiaomi Band 3. The smart wristband is not for medical use, please do not buy to check health (heart problems, blood pressure problems). It is not suitable for professional use. Just refer to it.