Description:Charging time 2 hours - ApproximatelyStandby time: 2 daysFollowing activity all day: steps, calories burned, mileage and heart rate.Automatic sleep monitoring: sleep time and sleep quality.Smart reminder: call reminder, SMS push, sedentary reminder.More features: mobile search, stopwatch. Continuous heart rate monitor: continuous and automatic monitoring of the heart rate on your wrist every second.0.96 inch TFT color touch screen: HD screen for easy reading of all fitness data.Customizable face clockSpecification:Bluetooth version: Bluetooth 4.0Waterproof: Spalsh WaterproofFunctions: time, pedometer, display of incoming calls, heart rate measurement, sleep management, Message.Operating system Compatible: Android, IOSCompatibility: for Android 4.4 and higher systems , for iOS 8.0 and above.Language: Russian, German, Italian, Japanese, French, Portuguese, Spanish, Arabic, KoreanProduct weight: 0.0530 kgPackage weight: 0.1000 kg Productsize (L x W x H): 26.00 x 1.90 x 1.10 cm