GT69 1.3 inch IPS Touch Screen IP67 Waterproof Bluetooth Earphone Smart Watch, Support Sleep Monitoring Heart Rate Monitoring Bluetooth Call 1. Screen: 1.28 inch IPS touch screen 2. Resolution: 240x240 3. Charging method (input): Magnetic data cable charging, 5V100MA 4. Watch Bluetooth version: 4.0 5. Output: 5V60MA 6. Earphone Bluetooth version: 5.0, support Apple and Android systems 7. Battery capacity: 360mAh 8. Compatible system: IOS 9 and above, Android 4.4 and above 9. Main chip: NRF52832 QFAA + Jerry 10. Memory: 128MB 11. Acceleration sensor: Bosch BOSCH BMA421 12. Firmware language: Chinese, Traditional Chinese, English, German, Korean, Spanish, Japanese, French, Russian, Arabic, Ukrainian 13. App languages: Chinese, Traditional Chinese, English, Korean, German, Spanish, Japanese, French, Italian, Russian, Portuguese, Arabic, Ukrainian 14. Functions: pedometer, calories, sleep monitoring, alarm clock reminder, dial-up call, call rejection, stopwatch, multi-sports mode, sedentary reminder, call reminder, SMS reminder, remote camera, music control, etc. 15. Strap material: silicone steel 16. Dial size: 46x15.5mm, strap length: 260mm