KT92 1.7-inch TFT Display 3ATM Smart Watch with Roller Control & 1000mAh Battery 1. Case Size: 51mm x 51mm x 13.4mm 2. Weight: 45g 3. Wristband size: Total length 280mm, adjustable length 155-235mm 4. Material: Body: Zinc alloy vacuum-plated front shell + environmentally friendly plastic bottom shell + metal buttons, Wristband: Silicone 5. Waterproof Level: IPX8-3ATM 6. Chipset: JL 7074 A7 7. Compatible System: Android6.0 or above, IOS10.0 or above 8. FLASH memory: 128MB 9. Screen size: 1.7 inch TFT 10. Resolution: 360x360 11. Touch Type: Full-screen touch 12. Bluetooth: BT 5.4 13. Heart Rate Sensor: HX3918 14. G-Sensor: ST-LIS2DOCTR 15. Battery Capacity: 1000mAh 16. Charge Mode: Magnetic charging 17. Charging time: about 4 hours 18. Life time: about 25-35 days of use, about 200 days of standby 19. Language APP Language: English, Simplified Chinese, Japanese, Korean, German, French, Spanish, Arabic, Russian, Traditional Chinese, Ukrainian, Italian, Portuguese, Dutch, Polish, Swedish, Finnish, Danish, Norwegian, Hungarian, Czech, Bulgarian, Romanian, Slovak, Latvian, Indonesian, Thai, Turkish, Vietnamese, Hindi, Pashto, Lithuanian, Estonian, Slovenian, Croatian, Greek, Filipino, Hebrew, Malay, Serbian, Persian Watch Language: English, Simplified Chinese, Japanese, German, French, Spanish, Russian, Traditional Chinese, Italian, Portuguese, Dutch, Indonesian, Thai 20. Major function Exclusive side scroll wheel encoder BMQ31, controlling secondary and tertiary menus, dials, volume adjustment, track skipping, flashlight intensity adjustment, screen brightness adjustment, menu page turning, zooming inout, rotation, etc. Compass, high-powered flashlight, full-screen touch, heart rate, SpO2, blood pressure, stress, exercise and activity tracking (steps, distance, calories), sports modes, AI voice , message push, information storage, sleep monitoring, weather , alarm clock, timer, stopwatch, calculator, relaxation, world clock, camera remote control, music control, find phone, cycle tr