Comprehensive Features: Before first use, please ensure FULLY CHARGED. One-tap measurement, Brightness set, Customizable WatchFace/Health/Activity Tracker/Female Health/Sedentary & Drink Reminder/Calorie/Step Counter/Call/Message Notification/Google fit supported Activity Tracking: Records all-day activities like steps, distance, calories, heart rate, bp, etc. 17 sports modes. To ensure the data accuracy, you need wear the watch close to your skin, the strap should be one finger away from the wrist Health Data Monitor: Fitness tracker can track real-time heart rate/ blood pressure and other health data automatically & continuously, also tracks your sleep with comprehensive analysis in app, helping you adjust yourself for a healthier lifestyle Smart Notifications and Specifications: Receive call, calendar, SMS and SNS (Facebook/Ins/Twitter/etc.) notifications, call Reject/Schedule Reminder function. Wearing Size: One size fits all, 4.7in x 7.9in(band length adjustable), 5-7days last, IP68 Waterproof Charging Instructions: Remove the band from watch body, both 2 sides can be removed, but only one side with metal piece can be charged, if not vibrate when plug-in USB port, turn the watch to another face and plug again Compatibility Requirements: This fitness tracker requires iOS 9.0 & Android 4.4 above, Bluetooth 5.0 (Smartphone only, not compatible with iPad, PC or Tablet) with Bluetooth transmission distance up to 10 Meters Special strength of BrilliantHouse electronic product (S5 fitness tracker) 1. Customized design of box and laser logo, fashionable with sense of future. 2. Online instruction video and revision operation manual, eliminate any confusion of disorderly guidebook. 3. One on one support， 24/7 online email， we can support"Get your money without return" if device got in trouble, no worry about the service. 【You can get more colors of watch band on (Search: BrilliantHouse S5 fitness tracker bands) 】 This fitness tracker requires iOS 9.0 & Android 4.4 above,Bluetooth 5.0 (Smartphone only, not compatible with iPad, PC or Tablet) Highlight Features - CustomizableWatch Face/Fitness Tracker/Activity Tracker/Female Health Assistant/ MET/EmotionalPressure Monitor - Blood Pressure /Heart Rate/BloodOxygen/Sleep Monitor, Sedentary Reminder/Drink Water Reminder - Smart Watch/Pedometer/Calorie Tracker/Step Counter/Alarm Clock Calendaring/Phone Call/MessageNotification.   - Google FitSupported/Remote Camera Shooting/Raise to wake up screen/Vibrateto Find phone - More to find by yourself! Specifications    Model: S5 Bluetooth Version: Bluetooth 5.0 or later Adapt system: Android 4.4 or above, IOS 9.0 or above Bluetooth Transmission Distance: 10 Meters (32.8 feet) Screen size: 0.96 inch Screen type: TFT Screen Battery type: Li Battery Battery capacity: 105mAh Working time: 7-10 days Standby time: 30days Charging time: 1-2 hours Charging type: USB(no need cable/dock) Dimension: suits for wrist size: 5 inch - 8 inch Weight: 0.84 oz (23.8g.)