HK50 Screenless Smart Bracelet

HK50 Screenless Smart Bracelet Fitness Band, QWatch Pro, Heart Rate, Blood Oxygen Monitoring Features: 1. Supports multiple health monitoring functions including heart rate, blood oxygen, stress, HRV, sleep monitoring and step counting. 2. Equipped with multiple sports modes and QWatch Pro APP support for activity tracking and health data management. 3. Uses Realtek 8762ESF chipset with BT 5.3 connection for stable wireless communication. 4. Built-in 120mAh lithium polymer battery with magnetic charging, providing up to 40 days of battery life. 5. IP68 waterproof design suitable for daily wear and outdoor activities. 6. Supports smart notifications including incoming call reminders, message alerts, device search, low battery reminders and do not disturb mode. 7. Lightweight design with a 43g body weight, comfortable for long-term wearing. Specification: 1. Product name: Smart Fitness Band 2. Product size: 34.5 x 23.8 x 10.9 mm (excluding strap) 3. Weight: 43g (excluding strap) 4. Main functions: Heart rate monitoring, blood oxygen monitoring, stress monitoring, HRV, female physiological cycle, shake photo, sports modes, sleep monitoring and step counting 5. Chipset supplier: Realtek 6. Chipset: 8762ESF 7. APP: QWatch Pro 8. Compatible system: Android 4.0 and above, iOS 9.0 and above 9. Memory: RAM 104KB, ROM 272KB, Flash 32Mb 10. Bluetooth version: BT 5.3 11. G-sensor: STK8321 12. Heart rate sensor: VC30FS 13. Battery type: Lithium polymer 14. Battery capacity: 120mAh 15. Charging method: Magnetic charging cable 16. APP functions: Heart rate, sleep, sports records, blood oxygen, physiological cycle, GPS sports, one-click measurement, body energy, HRV and stress monitoring 17. Smart functions: Call reminders, message notifications, smart reminders, do not disturb mode, find device, health monitoring, photo control, low battery reminder, restart device and factory reset 18. Waterproof level: IP68 19. Charging time: Approx. 1.5 hours 20. Battery life: Approx. 40 days, stand