【Military Grade Standard and 5ATM Waterproof】This military men's smartwatch is made of special composite material and metal case, which is rugged and durable. The smartwatch has passed various durability tests including drilling, crushing, exposure to hot steam, salt spray and liquid contamination. In addition, it continues to function even at very low temperatures.【Bluetooth Calling and Message Notification】This men's smartwatch is equipped with a 5.0 Bluetooth chip that allows you to make and receive calls, receive text messages from your mobile phone, control music playback, and even take photos using your phone's camera. With this watch, you can free your hands and stay connected while socialising and having fun. You'll never miss an important message again and you won't have to take out your phone all the time.【Multi-function Smartwatch for Men】Bluetooth voice call rugged smartwatch features include social media message notification and preview, AI voice assistant, blood pressure, blood oxygen, dynamic heart rate, sleep monitoring, alarm clock, calculator, breathing exercises, calorie counting, usage card, sedentary reminder, stopwatch, flip wrist illumination, remote camera, music control, weather forecast, multi-dial switching, water reminder, 100 Exercise modesLarge 400mAh Battery Capacity and DIY HD Touch Screen】Military tactical sports smartwatch has 400mah battery capacity, standby time up to 30 days, normal working time up to 7-10 days.1.39 inch HD touch screen, 360 * 360 pixels. Adjustable 5 brightness levels, so you can see the content of the watch in strong outdoor light. Built-in rich UI, 7 local classic UIs and nearly 200 UIs from APP Store to choose from. Customise your personal UI to show your personality.【Personal Health Assistant】This men's smartwatch supports 24 hours heart rate monitoring, real-time blood pressure/blood oxygen detection. There is also a sleep monitoring function that records your sleep time and detects your sleep status (deep sleep, light sleep, eye movement mode). The monitoring data can be stored for 30 days, so you can better understand your physical condition and develop healthy habits.100+ SPORTS MODES】This fitness tracking watch has more than 100 sports modes, including cycling, running, basketball, rugby, skiing and more. Through Bluetooth connection APP, you can download more sports, such as ball sports, water sports, equipment sports and so on. For most exercise modes, the smartwatch can be used to monitor key data such as workout heart rate, distance travelled, speed of movement and calories burned in real time to help you track and improve your performance.