Z73 1.09 inch Touch Screen Smart Bracet 1. System requirements: Android 5.0 and above, IOS 8.0 and above, compatible with Bluetooth 4.0 and above 2. Main control platform: XC 28063. Memory: 16+128M 4. Battery capacity: polymer 200 mA 5. Screen: 1.09 inch touch screen 6. Resolution: 240* 2407. Material: zinc alloy 8. Normal use: one week 9. Standby time: half a month 10. Support languages: Chinese, English, Japanese, Korean, German, French, Spanish, Portuguese, Russian, Italian, Traditional Chinese, Thai, Polish, Malay, Vietnamese, Turkish, Dutch, Greek, Arabic, Persian (the watch comes with it) 11. Functions: calls, s, call records, music playback, custom dials, multi-language, recording, voice control, multi-sports modes, steps, sleep monitoring, heart rate monitoring, blood pressure monitoring, blood oxygen monitoring, GPS running, Alarm clock, sedentary reminder, drinking water reminder, message push, incoming call reminder, weather, calculator, alarm clock, stopwatch, countdown, remote camera, search phone/search settings, raise the wrist to brighten the screen, brightness adjustment, bright screen time, theme section , Do not disturb mode, female functions (prediction of menstrual period, menstrual period, period, day, safe period) during pregnancy, etc. 12. Dial: diameter 36mm, thickness 11.5mm 13. Watch strap: length 220x16mm