X20 1.43 inch IP67 Waterproof 2 in 1 Bluetooth Earphone Smart Watch 1. Main chip: RTL8773EWE-VP 2. TWS chip: Bluetrum 8926B2 3. Heart rate chip: Tianyi Hexin HX3918 4. Screen size: 1.43-inch AMOLED, resolution: 466x466 5. Bluetooth version: mobile Bluetooth 5.0, data storage Bluetooth 4.0 6. Charging compartment battery capacity: 240mAh polymer lithium battery 7. Earphone battery capacity: 25mAh polymer lithium battery 8. Charging box function: The main body can charge the ear for 2-3 cycles 9. Standby time: 8-12 days 10. Music time: 3.5 hours 11. Charging method: wireless charging 12. Charging time: 2-2.5 hours 13. Dustproof and waterproof: IP67 14. Memory: 578KB RAM+578KB ROM+128MB UI-Flash 15. Control mode: touch screen 16. Vibration: real-time vibration reminder 17. Main shell material: glass lens + zinc-aluminum alloy 18. Compatible systems: Android 4.4 and above; ios 8.0 and above 19. APP software: FitCloudPro 20. Functions: Bluetooth calls, full touch, heart rate, shake to take pictures, call reminderrejection, information storage, multi-sports mode, weather, multi-language, information reminder, alarm clock, find bracelet, health monitoring, sports records (pedometer, calories, mileage), time, week, date, information reminder: SMS, QQ, WeChat, Skype, Facebook, Twitter, WhatsApp, Line, Viber 21. APP supports languages: Chinese, Simplified Chinese, Traditional Chinese, German, French, Arabic, Czech, Greek, Spanish, Japanese, Persian, Italian, Korean, Dutch, Polish, Portuguese, Russian, Finnish, Swedish, Thai, Hungarian, Slovak, Croatian, Albanian, Turkish, Ukrainian, Hindi 22. Watch languages: English, Spanish, Portuguese, German, Italian, French, Russian, Japanese, Polish, Vietnamese, Arabic, Hebrew, Thai, Croatian, Turkish, Czech, Dutch, Indonesian, Malay, Finnish, Greek, Romanian