Feature 1Durable: Rugged smart watch is a unique combination of composite material and metal housing that ensures durability and functionality. Shockproof and anti magnetic. Designed with a fully enclosed slim case, it supports daily water and dust resistance and cannot be worn for swimming. 2Bluetooth Calling: HD touch screen watch is equipped with bluetooth chipset and speaker to answer calls, play music, read messages, store contacts, and view call history. In addition, it will vibrate to alert you when you receive a message or app notification. 31.85 Inch Touchscreen: Military smart watch is compatible for Android 4.4 and for IOS 8.0 and higher. Equipped with a touch screen, it is a large 1.85 inch HD color screen with 240x280 resolution. The enhanced color saturation provides a clearer, brighter and more detailed visual experience. 4350mAh Battery: Rugged military smart watch has a built in 350mAh battery, which can enjoy up to 5 to 7 days of activity and 30 days of ultra long standby after a full charge. Convenient for your short term outdoor activities and adventures. 5Multiple Sports Modes: Rugged outdoor watch features multiple sports modes such as walking, running, cycling, skiing, hiking, swimming, baseball, soccer and basketball. It can automatically and accurately record your sports data to help you exercise scientifically, which is the best choice for fitness enthusiasts. 6All Round Monitoring: Military smart watch supports body data monitoring and sleep monitoring, helping you to better analyze your status and adjust your life style. With weather forecast, alarm clock, camera control, music control, timer, sedentary reminder and more useful functions.Item Type: Rugged Smart WatchMaterial: Aluminum Alloy, LCDSystem Requirements: for Android 4.4 And Above, for IOS 8.0 And Above, Support Bluetooth 5.0Bluetooth Version: Bluetooth 5.0Main Control Chip: for Realtek 8762DTMemory: Flash 64MBDial Size: 1.85 InchesScreen Resolution: 240 x 280 Ips HD ScreenSpeaker: 0916 with External SpeakerBattery Capacity: 350mAh (Included) Type: Lithium BatteryCharging Method: Contact Magnetic ChargingStandby Time: About 15 DaysWorking Time: About 5 to 7 DaysMotor: Built In, Vibration AlertFunction:1.85 Inch Ips HD Screen Full ViewEasy To Replace The Strap, Standard 22mm / 0.9inMassive Dial Push,Custom DialBluetooth Call, Bluetooth Music, Weather DisplayTime Display, Pedometer, Calorie, Distance, Sleep Time, On/Off Display, Stopwatch, Multi Sport ModeSleep Monitoring (Sleep Time, Sleep Quality)Caller Notification, Message Reminder, Multi Language Push, Alarm Clock Reminder, Remote Photo, Sedentary ReminderMulti Language Bracelet SupportLarge 350 mAh Battery, Long Standby TimeSync Data To for Apk or AppApp Or Apk Download Method:For Android And for IOS App Synchronization for Da FitBy Scanning To Download And Install for Dafit .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Watches1 x Charging Cable1 x Instruction ManualNote1. For IOS system for IOS store, for Android phones in the related application Store search for Da Fit APK download and install.2. Manual measurement, please allow slight error.