Z73 1.09 inch Touch Screen Smart Bracelet, Support Sleep Monitoring Heart Rate Monitoring Voice Control Women Menstrual Cycle Reminder 1. System requirements: Android 5.0 and above, IOS 8.0 and above, compatible with Bluetooth 4.0 and above 2. Main control platform: XC2806 3. Memory: 16+128M 4. Battery capacity: polymer 200 mA 5. Screen: 1.09 inch touch screen 6. Resolution: 240*240 7. 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, contacts, 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 phonesearch settings, raise the wrist to brighten the screen, brightness adjustment, bright screen time, theme selection , Do not disturb mode, female functions (prediction of menstrual period, menstrual period, ovulation period, ovulation day, safe period) during pregnancy, etc. 12. Dial: diameter 36mm, thickness 11.5mm 13. Watch strap: length 220x16mm