H1 1.3 inch TFT Screen IP68 Waterproof Smart Watch, Support Sleep Monitoring Heart Rate Monitoring ECG Electrocardiogram Vascular Management Body Temperature Monitoring 1. Main chip: Nordic52840+262+30101 2. Storage Flash: 8M bit 3. Main screen size: 1.3 inch TFT screen, resolution: 240*240 4. Battery capacity: polymer lithium battery 170mAh, battery life: 7 days 5. Charging: support magnetic charging 6. Waterproof rating: IP68 7. Support Bluetooth BLE5.0 8. Material: middle frame stainless steel, cover acrylic, bottom case plastic, top layer cowhide strap 9. Quick-release needle strap design, easy to disassemble and easy to replace 10. Support languages: English, German, Spanish, French, Italian, Japanese, Portuguese, Simplified Chinese, Traditional Chinese 11. Functions: step counting, calories, distance, sedentary reminder, multiple exercise modes, static heart rate, dynamic heart rate, 24-hour heart rate monitoring, heart rate off-hand detection, sleep monitoring, ECG monitoring, blood pressure monitoring, body temperature monitoring, messages Push, message storage, timedate display, custom dial, etc. 12. Sensors: blood pressure sensor, blood oxygen sensor, body temperature sensor, ECG sensor, light sensor, PPG heart rate sensor, motion acceleration sensor 13. Body size: 42x34.5x10.5mm 14. Weight: about 20g