K52 Smart Watch Outdoors IPS HD Screen Bluetooth Call Heart Rate Monitor Waterproof Long Standby Fitness Tracker Sports Watch System requirements: Android system 4.4 version or above; iOS system 8.0 version or above; Support bluetooth-compatible with 5.0 version; Bluetooth version: BLE 5.0 Main control chip: Realtek8763EW Memory: Flash128MB Screen resolution: 360*360 Battery capacity: 400mAh Standby time: About 30days Working time: 5-10days Motor: Built in, vibratng reminder Specifications: 1.1.39 inch IPS screen 2.Detachable 22mm strap Standard 3.Multiple watch faces pushing,Customized watch faces 4.Bluetooth-compatible calling/BT music(Superior clear audio like sound effect),Weather 5.Heart rate detection/Blood pressure detection/Blood oxygen detection/Wole-day heart rate monitor 6.Timer ,Pedometer,Calorie Consumption,Distance Calculation,Heart rate,Blood pressure,Blood oxygen,Sleep time /quality,On & Off dispalyMultiple sport modes 7.Sleep detection (Sleep time ,Sleep quality) 8.push,Clock alarm,Remote CameraSedentary reminder 9.English,Chinese,Japanese,German,French,Spanish,Arabic,Russian,Ukrainian,Russian,Portuguese 10.400mAh big battery,super long standby time,Bright screen under sunshine 11.Synchronous data to APK/APP Package Included: 1 * Smart Watch 1 * Charger 1 * Instructions