Redmi Watch 4 1.97inch AMOLED Display MI HyperOS Interaction bluetooth Call Heart Rate Blood Oxygen Monitor Women's Heal

Specification Brand Redmi Model Watch 4 Chinese Version bluetooth Version BLE5 3 Compatible OS Support Xiaomi HyperOS Android 8 0 and above Apple IOS 12 0 and above Operating Mode Full Touch APP Name MI Health System Language Multi language APP Language Multi languageSpecial Features Information Reminder bluetooth Call Call Reminder Message Reminder APP NotificationHealth Heart Rate Monitor Blood Oxygen SpO2 Monitor Breathe Training Women s Health Stress Testing Sleep Monitor 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 Waterproof 5ATM SensorAcceleration Gyroscope Optical heart rate and blood oxygen Ambient light sensor Geomagnetic sensor Screen Size 1 97 inch Material AMOLED Resolution 390 450 pixels Battery Battery Capacity 470mAh Standby Time About 20 30 days Using Time About 5 7 days Charging Time About 2 3 hours Charging Type Magnetic chargingAppearanceDetails Material Band Material TPU Watch Case Material Aluminum alloy middle frame stainless steel crown fiber high strength polymer Size Dial SIze About 47 58 41 12 10 5mm Strap Length About 205mm Band Width About 22mm Packing List 1 Redmi Watch 4 Smart Bracelet 1 Charging Cable 1 User ManualTips 1 Light of shoot will affect the color of the products pictures for reference only subject to our ava