Smart Watch/Bracelet, USB Monitors Heart Rate, BP, Count Steps, Waterproof Details: Warm Remind USB Quick Removal Direct Charge Brand new bracelet charging method, quick-release detachable wristband design, can be charged by plugging in the USB interface, eliminating the trouble of carrying a charging cable and charging stand. Smart Life Assistant The watch can monitor the steps, calories, heart rate, distance, sleep quality, etc. Of the day. At the same time, it can connected to a smart phone to view information, remotely take pictures, retrieve mobile phones and other thoughtful and convenient functions to make your life more convenient. Practical Keep abreast of your exercise intensity and physical condition in order to adjust your fitness plan in a timely manner. Skin-friendly material The bracelet wristband is made of lightweight skin-friendly soft TPU, which adopts lightweight design, no feeling to wear. Main Features Model Number: D20 Pro Smart Watch APP: FitPro Bluetooth Version: Bluetooth 4.0 Waterproof / Water-Resistant: Yes(Not for swimming ) Operating mode: Touch button Power on: press and hold the function key Screen Type: 1.3inch TFT LCD Storage(FLASH)16MB+128KB Compatible OS: Android,IOS Standby time: 4-7days normally use; 30 days standbybased on 230mAh Functions: Sport,Message,Alarm Clock,Blood Oxygen,Date,Measurement of heart rate,Sedentary reminder,Sleep management,Time Notification type: Facebook,Twitter,Wechat,WhatsApp Alert type: Vibration APP Language Support English,French,Italian,Japanese,Korean,Polish,Portuguese,Russian,Simplified Chinese,Spanish,Traditional Chinese,ect Package Contents 1 x Smart Watch, 1 x Manual, 1 x Box Tips for use 1. This product can only surface splash waterproof(Cool water),please don't wear it to swim,drop it to the water or soaked in water ect. 2. When you first receive the product, charge it for 5-10 minutes at first if it cannot be turned on because it is already low on power.