OUTDOOR ADVENTURE WITH YOU - This military outdoor smartwatch is made of special composite material and sturdy aluminum alloy bezel, which has gone through rigorous military-grade testing and supports heat resistance up to 187.96 °F, cold resistance up to -82.78 °F, waterproof, low-pressure resistant, and dust-proof, fearless of harsh environments, making it the perfect companion for outdoor adventures GUARD YOUR HEALTH - The watches for men monitors heart rate, blood oxygen and blood pressure in real time with high-precision sensors. This rugged fitness watches for men also monitors sleep, such as deep sleep, light sleep and REM, and provides sleep trends for the last seven days, analyzing your health in real time and helping you adjust to a healthy lifestyle.(Note: The health data can only be used as a reference for exercise and cannot be compared with professional medical equipment data) PERSONAL EXERCISE ASSISTANT - The iPhone smart watch has 100+ indoor and outdoor sport modes, customized for those who love to exercise. It records exercise data according to your exercise style, tracks your steps, distance, calories burned, etc., and helps you achieve your fitness goals HANDHELD COMMUNICATION - This smart watches for men is compatible with most iOS 9.0 and Android 9.0 and above. With a built-in hi-fi speaker and microphone, it supports Bluetooth to make and receive calls, receive message alerts, play music and voice assistants, freeing your hands from your cell phone and allowing for freer communication. (If you don't want your cell phone to sound from the watch, please turn off “Media Audio” on the watch) MORE EFFICIENT LIFE - The outdoor sport watches has many built-in functions including weather forecast, music control, camera control, timer, alarm, sedentary reminder, drinking water reminder function, etc. Lift up your wrist and read all the incoming calls, text messages, SNS messages sent to the smartwatch screen directly. There are various dials in the app, you can also customize the dials, it's a perfect choice for men/dad/friends LONG LASTING BATTERY - Ultra-low power consumption, the Android smart watch has a built-in 450mAh battery, which can support 50 days of standby, 7 days of general use with a 2-hour full charge, providing long-lasting power for long outdoor adventures or busy work. If you encounter any problems during use, please contact us through Amazon. Tip: If you keep using the watch to play music or make phone calls, the watch's usage hours will be greatly reduced SIZE - Smart watch head size: 58mm*46mm*13mm (2.28*1.8*0.5 inches), watch weight: 61.7g (2.18 oz), lug width: 22mm, suitable for wrist size: 169-242mm (6.65-9.53 inches) Military Smart Watches for Men (Answer/Make Call), 2.02" Rugged Smart Watch for Android Phones and iPhone, Waterproof Outdoor Sports Fitness Tracker with Heart Rate, Sleep Monitor, Black Product size: 58.3*46.1*13.3mm Packing size: 221.5mm*95mm*18.5mm Weight: 61.7g Watch Supported Languages: English, Simplified Chinese, Japanese, Korean, German, French, Spanish, Arabic, Russian, Ukrainian, Italian, Portuguese, Polish, Romanian, Turkish, Persian Touch screen: 2.02'' HD touch screen Resolution: 320*390 Water resistance: 5 ATM Type of connectors: Bluetooth Bluetooth: BLE5.3 Flash Memory: 128 MB Refresh Rate: 65Hz Battery Power Rating: 450 mAh (15 days+) Additional features: 1. Aerospace aluminum and titanium bezel 2. 5 ATM water resistance 3. 2.02'' HD touch screen 4. The latest upgraded high-precision optical sensor (Heart rate, Sleep, Blood oxygen, Blood Pressure, Step, Calorie, Distance) 5. 100+ sports modes (Walking, Running, Cycling, Skipping, Badminton, Basketball, Football, Swimming, Tennis, Rugby, Golf, Yoga, Gym, Dancing, Baseball, Elliptical Machine, Rowing Machine, Trail Running, Skiing, Bowling, Dumbbell, Crunches, mountaineering and other 10 sports) 6. Incoming call notifications, Support making and connecting calls (call function) 7. SMS and SNS messages notifications (Facebook, Twitter, Line, Skype, WhatsApp, Kakao Talk, Instagram, LinkedIn, Snapchat, etc.) 8. Camera control 9. Music control 10. Sedentary reminders 11. 3 levels vibration adjustment 12. Brightness adjustment 13. Alarm clock 14. Timer 15. Find phone 16. Women's health 17. Compatible peripherals: iOS (iOS 9.0 or above), Android (Android 9.0 or above) 18. AI voice Package list: 1 x Military Bluetooth Smart Watch 1 x Watch Bands 1 x USB Magnetic Charging Cable 1 x User Manual