Happyfun Men Women Smart Bracelet Heart Rate Sleep Monitor Health Smart Band Waterproof Sports Fitness Tracker Smartwatch For Android iOS Smartwatch  (1 Strap, 1)

Functions: Heart rate monitor, Blood oxygen monitor, Stress test, Heart rate variability monitor, Female physiological cycle, Shake it to take a photo, Multiple sport modes, Sleep tracker (Sleep time ,Sleep quality), Step count/Pedometer, Synchronous data to APK/APP APP Download: Download “Nx Wear" from Android market or Apple store/Scan the following QR code and download"Nx Wear" APP name: Nx Wear Compatible systems: Android 6.0 and above, iOS 10.0 and above Parameter: CPU: OM6626B Material: Zinc alloy+epoxy resin Bluetooth Version: BLE 5.3 Battery capacity: 33mAh Working Time: About 5-7days Charing time: 2 Hours G Sensor: SC7A20H Heart Rate Sensor: HX3918 Magnet Cable: With SMT Protect IC Waterproof Level: IPX8 Charging Requirement: Charging 1A or less Package Included: 1*Smart bracelet 1*Free black nylon strap 1*Charging cable 1*Manual 1*Original box Note: *Please charge it for 2-3 hours when you receive it. It was running out of power after the long delivery. *Smartwatch belongs to electronic products, life waterproof, if the watch stick on the water must be timely dry, waterproof also need maintenance, at the same time, please do not use it in excessive water environment, such as bathrooms, swimming pools and so on. *Heart rate, blood oxygen, etc. measurement data are only reference values and cannot be used for medical purposes!!! *Please feel free to contact me if you have any questions.