Specification Model HK3 Plus Bluetooth Version BT 5 0 Operating Mode Full Touch Compatible OS Android 4 4 or above iOS 9 0 or above APP Name FitCloudPro Watch Language Chinese English German Russian Portuguese Spanish French Japanese Arabic Dutch Italian Czech Republic Greek Hebrew Indonesian Korean Malay Polish Thai Vietnamese Finnish Romanian Turkish CroatianSpecial Features Information Reminder Bluetooth Call Call Reminder Reject Call Call ID Display Message ReminderHealth Heart Rate Monitor Blood Pressure Monitor Blood Oxygen Monitor Sleep Monitoring Female Physiological Cycle Exercise and Record Multi sport Modes Step Count Calories Distance Application Camera Control Music Control NFC AI Voice Assistant Alipay Offline Payment Password Unlock Alarm Clock Timer Stopwatch Weather Display Multi dial Switching Custom Dial Find Phone Do Not Disturb ModeTechnical Parameters Sensor PPG Heart Rate Blood Oxygen Acc Sensor Waterproof IP68 Waterproof Screen Size 1 36 inch Type TFT Resolution 390 390 pixels Battery Battery Capacity 300 mAh 4 2V Standby Time About 30 days Using Time About 3 5 days Charging Time About 2 hours Charging Type Magnetic ChargingAppearanceDetails Material Watch Material Zinc alloy Spherical toughened glass Band Material Leather Stainless Steel Size Dial Size About 46 46 12mm Band Length About 220mm adjustable length 145 190mm Band Width About 22mm Packing List 1 HK3 Plus Smart Bracelet 1 Charging Cable 1