Note Non medical equipment The health test function is for reference only and cannot be used for medical purposes Specification Model S28 bluetooth Version 5 3BLE Compatible OS Support Android 8 0 and above Apple IOS 12 0 and above Operating Mode Full Touch APP Name Healthwear System Language English Chinese Traditional Japanese Korean French German Italian Portuguese Spanish Polish Russian APP Language Chinese Traditional Chinese English Japanese German Russian Italian French Spanish Portuguese Thai Czech Greek Polish Vietnamese Turkish Romanian Hungarian Danish Finnish Arabic Ukrainian Hebrew Persian Irish Slovak Korean Croatian Swedish Bokmål Norwegian IndonesiaSpecial Features Information Reminder bluetooth Call Call Reminder Message Reminder APP NotificationHealth Heart Rate Monitor Blood Pressure Monitor Blood Oxygen SpO2 Monitor Blood Glucose Monitor Blood Sugar Monitor Body Temperature Monitor Breathing Exercise Uric Acid Lipid Function SOS Emergency Call Respiratory Rate Sleep Monitor Sedentary Reminder Exercise and Record Multiple Sports Modes Calorie Distance Step Count Application Music Control Camera Control Alarm Clock Stopwatch Weather Custom Dial Dial Market Brightness Adjustment Find Phone Do Not Disturb ModeTechnical Parameters Screen Size 1 39 inch Material IPS Battery Battery Capacity 530mAh Standby Time About 30 35 days Using Time About 7 12 days Charging Time About 2 3 hours Charging Type Magnetic c