*H803 heart rate armband has a maximum battery life of 45 hours *IP67 waterproof function *Heart rate warning vibration reminder function safe exercise *Photoelectric sensor detects changes in data to calculate heart rate beat rate *The arm strap is adjustable (about 190-310mm) *It is recommended to use a weight of 40-120kg *Applicable to general sports such as cycling, fitness, hiking, running, yoga, etc. *Support ANT+ and Bluetooth connection *Compatible with various sports APP *Heart rate range: 40-220BPM Approximate weight: sensor 12g, armband 9g
