Feature: 1. Waterproof: Rugged outdoor watch is designed for outdoor sports enthusiasts, daily waterproof, shockproof and anti magnetic. Designed with a fully enclosed slim case, it cannot be worn for swimming. 2. Bluetooth Calling: Sports rugged smartwatch is equipped with a bluetooth chipset and speaker to answer calls, play music, read messages, store contacts, and view call logs. 3. Sms Alert: Rugged military smart watch will vibrate to alert you when you receive a message or app notification, so you'll never miss an important call or message again. 4. 1.6 Inch Touchscreen: Rugged smart watch is compatible for Android 6.0 and for IOS 9.0 and higher. Featuring a 1.6 inch hd color touchscreen with 400x400 resolution. Color saturation provides a clearer visual experience. 5. 400mAh Battery: Rugged multisport smart watch has a built in 400mah battery, which can enjoy up to 5 to 10 days of activity and 30 days of ultra long standby after a full charge. 6. Multiple Sports Modes: HD touch screen watch has multiple sports modes that will automatically and accurately record your sports data to help you exercise scientifically. With weather forecast, alarm clock, camera, music control, timer, sedentary reminder and other functions. Specification: Item Type: Rugged Outdoor Watch Material: Aluminum Alloy, LCD System Requirements: for Android 6.0 and Above, for IOS 9.0 and Above Bluetooth Version: BLE 5.0 Main Control Chip: ATS3085 Memory: 4GB Dial Size: 1.6 Inches Screen Resolution: 400x400 IPS HD Screen Speaker: 0916 with External Speaker Battery Capacity: 400mAh (Included) Type: Lithium Battery Charging Method: Contact Magnetic Charging Motor: Built In, Vibration Alert Function: 1.6 Inch IPS HD Screen Full View Easy to Replace the Strap, Standard 22mm / 0.9in Massive Dial Push,Custom Dial Bluetooth Call, Bluetooth Music, Weather Display Time Display, Pedometer, Calorie, Distance, Sleep Time, On/Off Display, Stopwatch, Multi Sport Mode Sleep Monitoring (Sleep Time, Sleep Quality) Caller Notification, Message Reminder, Multi Language Push, Alarm Clock Reminder, Remote Photo, Sedentary Reminder Multi Language Bracelet Support Large 400mAh Battery, Long Standby Time Sync Data to for Apk or App App Or Apk Download Method: For Android and for IOS App Synchronization for CyFit APP By Scanning To Download and Install for CyFit APPfor. Package List: 1 x Watch1 x Charging Cable1 x Instruction Manual Note: 1. For IOS system for IOS store, for Android phones in the related application Store search for CyFit APP download and install.2. Manual measurement, please allow slight error.