GTS9 1.96 inch TFT Screen Outdoor Rugged Smart Watch 3ATM Waterproof 1. Chipset: JL7012F 2. Memory: 640KB ROM, 128M FLASH 3. Bluetooth version: BT5.3 4. Sensor: HX3918 heart rate sensor, SC7A20H accelerometer sensor 5. Screen: 1.96-inch TFT, 320x386 resolution, Full-screen touch 6. Battery capacity: 350mAh 7. Standby time: 45 days 8. Working time: about 5-14 days 9. Charging time: about 2.5 hours, magnetic charging 10. Waterproof: 3ATM 11. APP: Runmefit 12. System requirements: Android 7.0 or above, IOS 12.0 or above 13. Watch UI language support: English, Simplified Chinese, Traditional Chinese, Russian, German, Italian, French, Polish, Portuguese, Spanish, Thai, Japanese, Dutch, Korean, Vietnamese, Malay, Indonesian, Romanian, Turkish 14. APP language support: Simplified Chinese, Traditional Chinese, English, Japanese, Italian, German, Spanish, French, Russian, Dutch, Portuguese, Arabic, Indonesian, Korean, Thai, Polish, Vietnamese, Hindi, Turkish, Hebrew, Malaysian, Romanian, Mongolian, Slovak, Czech, Hungarian 15. Functions: MAl health management system, 100+ exercise modes, activity logging, Bluetooth calling, one-touch measurement, heart rate, stress, blood oxygen, sleep, breathing training, MET, weather, information, music control, timer, stopwatch, calculator, alarm clock, flashlight, find your cell phone and more 16. Body material: High-performance plastics 17. Wristband: Natural Silicone Gel 18. Packing list: Smartwatch (including watchband) x 1, Magnetic charging cable x 1, User manual x 1