[ Upgraded Heart Rate Monitor & Sleep Tracker ] 115U HR smart bands used the most advanced sensor that can automatically and continuously check your heart rate 24hours per day ; check all-day dynamic heart rate curve in the app, allowing you to soon and easy know your heart rate during rest or walking,running and bicycling; automatically tracks your sleep, just bind the fitness watch with your phone, it will tell you the light/deep/awake sleep of last night

[ Smart Activities Tracker ] This fitness Tracker will track your daily activities like steps, cycling, running, distance, calories burned and miles walked, activity minutes and more ; can work as a step counter and calories counter even if the tracker watch does connect with your mobile. Set a silent alarm and your tracker will wake you with a quiet vibration

[ Call/SMS/ Messages Reminder ] Getting phone calls, whatsapp/facebook/ins-gram /twitter/ messenger/sms messages notifications on this activity tracker screen via Bluetooth ( suits for all ios and androids mobiles). Plus, this smart watch band is with alarm clock, sedentary reminder, remote control camera anti lost functions and gesture control functions.Note:these functions can be worked when the tracker band is connected with your smart phone by Bluetooth in the very fitpro app

[ Up to 7 Days Working Time ] This smart watchband supports 7 + days working after single fully charge 1-2Hours.All HolyHigh sports tracker are built-in USB dongle, please remove off the tracker both sides strap and plugin the usb dongle in your laptop or power bank USB port for charging 15minutes as soon as you received the item. Note:please first read the user guide before you charge it

[ Wide Compatibility & Warranty ] iOS 7.1 & above/Android 4.4 & above, Bluetooth 4.0 & above mobile can work with 115U HR fitness watches. Note: it can not work with laptop, iPad or tablets and Samsung j1,j2,j3,j4,j5,j7,j9 A3, A5, HUAWEI P8, P8 Lite;All items sold by HolyHigh is with 360 days no-worry free guarantee