【Military-level standards and quality】-Tiwain smartwatch With a 1.39 inch large round screen and an aluminum metal dial, this men's smart watch is wear-resistant, dust-proof, fall-resistant, waterproof, and has ultra-long endurance. It supports multiple languages and is sturdy and durable, making it your forever reliable partner..【Health monitoring, Bluetooth calling and message】-The military smart watch has a built-in sensitive motion sensor that can automatically monitor your real-time heart rate, sleep, blood pressure, and oxygen. It will vibrate to remind you when your heart rate is abnormal. When connected to an Android or iOS mobile phone, you can directly dial or answer calls on the watch's screen. You can also receive SMS and app messages, vibration alarms, which are useful when driving or exercising..【120+ exercise modes, life assistant, fitness tracker】-The mens smart watches support 120+ sports types and can be used as an assistant for music and photo camera control, weather display, long sitting reminder, water reminder, alarm clock, stopwatch, mobile phone search, games, calculators, and more. It supports AI voice control for the watch and mobile phone, helping you live a convenient life..【IP68 waterproof long time running watch】-The smart watches for men are equipped with a 400mAh large capacity battery that can be fully charged within 2 hours and last up to 30 days, allowing you to wear it 24 hours a day. It can monitor your heart rate, blood pressure, and blood oxygen data during exercise and protect your sleep health at night. It is also IP68 waterproof, so you can wear it worry-free in ordinary times..【Wider compatibility and customized appearance】-The smart watch is compatible with most iOS 8+ and Android 4.4+ smartphones, including Huawei, Samsung, Mi, and iPhone. You can select your favorite pictures, photos, or built-in dials to show your personalized style from the "Da Fit" application. If you have any questions or problems, please feel free to contact us, and we will provide you with satisfactory solutions.