Z7 Ultra 1.46 inch Color Screen Smart Watch, Support Bluetooth Call Health Monitoring About Product 1. Main chip: JL7012F 2. Bluetooth version: BLE 3.0 and 5.1 3. Screen resolution: 360 x 360 4. Battery capacity: 300 mAh 5. Bracelet memory: RAM672KB ROM64Mb 6. Standby time: about 15-20 days 7. Working time: about 2-3 days 8. Charging method: magnetic charging 9. APP supported languages: Chinese, English (default), Russian, Spanish, German, Italian, French, Portuguese, Polish, Greek, Turkish, Hebrew, Arabic, Indonesian, Vietnamese, Thai, Persian Main Function 1. Heart rate monitoring,blood pressure monitoring,blood oxygen monitoring 2. Step,distance,calorie 3. Sleep monitoring (sleep duration, sleep quality) 4. Precise compass,AAC speaker with SOS emergency function,worship pointer and worship alarm clock 5. ECG monitoring,body temperature monitoring,blood sugar, Mette 6. QR code push,women's health,take medicine reminders,altitude, air pressure 7. Multi-sports mode:walking, running, football, badminton, tennis, basketball, table tennis, cycling, climbing, skipping rope, yoga 8. Information push:facebook、twitter、whatsapp、qq、WeChat Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.