CS201 1.3 inch TFT Color Screen IP68 Waterproof Sport Smart Watch, Support Sleep Monitoring Heart Rate Monitoring Blood Oxygen Monitoring Message Push(Grey) 1. Main chip: Nordic 52840, heart rate chip: GH301, Flash storage: 64Mbit 2. Sensors: acceleration sensor, heart rate sensor, 9-axis gyroscope, geomagnetometer 3. Main screen touch: full touch, full bonding process 4. Support BLE5.0, support Android 5.0, IOS 8.0 and above 5. Screen: 1.3 inch TFT color screen, resolution: 240*240 6. Lithium battery: 170mAh-3.8V, battery life: 7-10 days 7. Waterproof rating: IP68 8. Body size: 4x3.5x1cm replaceable 20mm siliconeTPU universal strap 9. Body material: zinc alloy; wristband material: silicone wristband 10. Ultra-thin, ultra-long standby 15 days, customizable dial 11. Continuous sleep blood oxygen monitoring, early detection of sleep apnea syndrome, infrared sleep monitoring, no green light, no interference in sleep 12. Automatic monitoring of continuous heart rate, black heart rate, blood oxygen, pressure, mood, and breathing rate to understand your own physical state 13. The data during exercise can be customized display according to needs, making exercise more comfortable 14. Professional dynamic heart rate, can be used as a data reference with the Japanese polo heart rate belt, can measure the heart rate of black skin 15. Professional precise exercise, heart rate interval training (detailed display data), heart rate warning 16. Support message push alarm clock schedule custom dial sleep detection sedentary reminder step count reminder, etc. 17. Support 18 kinds of sports, swimming, running (multiple running modes, colorful night running), ball sports, etc., counting sit-ups and skipping ropes 18. Calculate swimming distance, SWOLF and other professional swimming pool swimming data