Physiological bracelet, bluetooth, tracks heartbeat, monitors oxygen level, measures blood pressure

App: FitCloudPro Color/Style: Black (with multi-color strap) Body size: 51.5*43.8*13.5mm (circle mouth) Shell material: zinc alloy + plastic Strap specification: 22mm (removable) Band material: silicone Adjustable circumference of strap: 145-265mm Battery life: 20 days Waterproof level: IP68 CPU: Zhongke 5th generation AB5691 Memory: external 128M (RAM578+ROM640KB) Bluetooth: BLE 5.3 + BT Acceleration sensor: STK8321 Heart rate sensor: HX3917 Display: 2.01"IPS 240*296 Touch: Full screen touch Physical button: 1 LED flashlight: support Battery: 1200mAh Charging interface: 2PIN magnetic charging cable Function: Data storage: Health data can be stored in the watch for 14 days and covered in a cyclical manner; sports training data can be stored in the watch for 40 hours of cyclic coverage; the data synchronization APP can be permanently stored locally on the phone. Watch faces: watch face market, custom watch faces; built-in 7 watch faces Health: 24/7 sleep monitoring, heart rate measurement, stress measurement, blood oxygen measurement, breathing training, prolonged sitting reminder, menstrual cycle (female), etc. Sports: daily activity monitoring (recording steps, calories, distance)…