CUSTOMIZED FOR THE ADVENTURER: Our military smartwatch comes with 15 military-grade tests. Heat resistant to 187.96F, cold resistant to -103.78F, and enhanced IP68 water resistance supports 20 meters underwater. This smartwatch with a Micro-blasted metal frame and titanium body. NEVER MISS ANYTHING: The tough smart watch has a built-in Hi-Fi speaker and crystal-quality microphone. It supports Bluetooth to make, receive calls and play music. It is suitable for various sports modes indoors and outdoors. The tactical smart watch allows hands-free calling at home or while walking, running, cycling or hiking, freeing your hands from your phone.COMPREHENSIVE HEALTH MANAGEMENT: It is equipped with the latest BIO3.0 PPG high-precision optical sensor. The watch supports 24/7 blood oxygen, heart rate, and blood pressure monitoring. And automatic sleep tracking monitors your sleep status (deep sleep, light sleep, REM time). Truly achieve total health protection.BEST SPORTS PARTNE: Waterproof watch brings you 20 sports modes, such as walking, running, cycling, and mountaineering. The connects to your phone's GPS to track your movements to inspire your passion for sports. It also provides many features such as weather forecast, alarm clock, stopwatch, timer, etc. Additionally, the rugged fitness watch supports viewing text messages directly on your watch(such as Facebook, Twitter, Skype, etc.).It's the best gift for men/him/dad/friends. HIGHER-LEVEL TECHNICAL SUPPORT: Compatible with Android 6.0/iOS 9.0 or higher and Bluetooth 5.0 or higher. Fully charge for 2 hours, use for 10 days+ or stand by for 40 days. Built-in 128MB flash memory gives you superfast storage so you can access what you need quickly. It's the best gift for men/him/dad/friends.