Answer/hang up&reminder message: This smartwatch supports two-way calls. After establishing a connection with the app Dafit, you can make phone calls and chat directly anytime, anywhere. In addition, this fitness watch can also remind you of text messages, calendar events, and other social media applications (Facebook, WhatsApp, Twitter, etc.). So you won't miss anything important. Heart rate and sleep monitoring This fitness tracker supports automatic heart rate monitoring 24/7. You can check your heart rate changes at any time. The sleep monitoring function of this smartwatch can also record your sleep status, help you understand sleep data (deep sleep, light sleep, and wake-up time), provide reference numbers for daily health analysis, and help you establish a healthier lifestyle. IP67 Waterproof and Other Features: The IP67 waterproof men's fitness watch can withstand daily sweat and rainwater splashing, without worrying about damaging the watch when washing hands. (Note: Do not wear a watch in hot showers, diving, etc. This event tracker also includes a photo remote control, music control, stopwatch, seat reminder, etc. The multifunctional design brings you a diverse experience.). 10 Sports Modes and Weather Display The men's smartwatch supports 10 sports modes, such as walking, running, cycling, and hiking. Automatically tracking steps, burning calories, and walking distance can help you effectively understand your daily activity data. This stainless steel smartwatch features weather and temperature displays. After connecting the smartphone and application, you can synchronize the local weather conditions. Compatibility and after-sales service: LIGE Men's Smart Watch is more compatible with smartphones and Android 4.4, iOS 8.0, and Bluetooth 4.0 or higher.