S669 1.75 inch AMOLED GPS Sport Smart Watch, Support Bluetooth Call / Sleep / Blood Oxygen / Heart Rate / Female Menstrual Cycle

1. Model: S669
2. compatible system: IOS / Android systems
3. Key selling points: Display: AMOLED HD screen (always-on display / power-saving / rich colors)
GPS: High accuracy in distance and pace calculation, GPS movement trajectory
Appearance: Zinc alloy mid-frame
Bluetooth call: Stable call over 20 meters / clear call quality
Encoder: Photoelectric rotary encoder
Waterproof: 30 meters waterproof
4. Function: Multiple theme styles, customizable watch face, step counting, brightness adjustment, long-lasting screen mode, screen on raise, multiple sports modes, GPS track, sleep detection, stress measurement, female physiological cycle, heart rate, blood oxygen, breathing training, information push, remote music control, remote photo taking, real-time weather, phone finder (use when connected to phone), alarm clock, timer, stopwatch, do not disturb mode, Bluetooth call,
5. App supported languages: Chinese (simplified), English, German, French, Spanish, Italian, Japanese, Russian, Portuguese, Türk?e, Thai, Korean, Estonian, Lithuanian, Latvian, Bulgarian, Greek, Polish, Vietnamese, Czech, Slovak, Hungarian, Malay, Indonesian, Persian, Hindi, Hebrew, Romanian, Arabic, Ukrainian, Dutch
6. Device-side supported languages: English, German, Japanese, French, Italian, Spanish, Russian, Portuguese, Chinese
7. Languages supported by the manual: Chinese, English
8. App: Fitbeing
9. chip: ATS3085S4
10. Button type: 2 physical buttons + optical rotary encoder
11. Android system: Supports Android versions 9.0 and above
12. iOS system: Apple iOS version 12.0 or above
13. Bluetooth: BLE 5.3 + BT
14. Heart rate: HX3918
15. Product Process: Zinc alloy + ABS
16. Net weight of the body: 48g
17. Screen size: 1.75
18. Screen resolution: 466×466
19. Screen Type: AMOLED high-definition screen
20. Screen material: Glass (panda substrate)
21. Waterproof rating: IP68
22. Total length of wristband: 260 millimeters
23. Wristband material: Belt / Silicone
24. Machine head size: Height: 53.1mm x 53.1 x 12.6mm (excluding protruding platform)
25. Battery Type: lithium battery
26. Battery Model: 502833 polymer
27. Battery voltage: 3.85V
28. Battery capacity: 800mAh
29. Charging method: Magnetic charging
30. Charging time: About 3 hours