V05S Smart Bracelet BT4.0 Heart Rate Monitor SmartbandHeart rate monitoring, pedometer, calories burned, distance, sleep monitoringcall reminders, alarm reminder, anti-lost, photographs and other remote controlWaterproof and dustproof: living water (sweat-proof, rain and water spray)Lift wrist display, touch keysVibrate real-time (non-Bluetooth connection status)Compatible OS Android 4.4 / iOS 8.0 and above system Description:Available colors: Black, Blue, Orange, PurpleSpecial Feature: Light on Wrist UpData Storage: Latest 7 DaysSensor: Gsenso