HK13 Screenless Smart Bracelet Fitness Band, QWatch Pro, Heart Rate, Blood Oxygen Monitoring

Features:
1. Multi-function smart band supporting heart rate monitoring, blood oxygen detection, stress monitoring, HRV analysis, sleep tracking and step counting.
2. Supports multiple sports modes and GPS sports tracking through the QWatch Pro app for comprehensive activity management.
3. Equipped with BT 5.3 connection, providing stable and efficient wireless communication with Android and iOS devices.
4. Lightweight and compact design with a 25g body weight, comfortable for daily wearing.
5. Built-in 50mAh lithium polymer battery, supporting magnetic charging and long battery life up to about 20 days.
6. Supports smart reminders including incoming call alerts, message notifications, low battery reminders and do not disturb mode.
7. 1ATM waterproof design suitable for daily use and basic water-resistant protection.

Specification:
1. Product name: Smart Fitness Band
2. Product size: 34.6 x 16.6 x 8.2 mm (excluding strap)
3. Weight: 25g (excluding strap)
4. Main functions: Heart rate monitoring, blood oxygen monitoring, stress monitoring, heart rate variability, female menstrual cycle monitoring, shake-to-take photo function, multiple 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. WiFi: Not supported
12. NFC: Not supported
13. G-sensor: STK8321
14. Heart rate sensor: VC30FS
15. GPS: Not supported
16. Battery type: Lithium polymer
17. Battery capacity: 50mAh
18. Charging method: Magnetic charging cable
19. Waterproof level: 1ATM
20. Charging time: Approx. 1.5 hours
21. Battery life: Approx. 20 days, standby time approx. 40 days
22. Notification method: Motor vibration