Answer / hang up & reminder message Smartwatch supports two-way conversation. After you have connected to APP Dafit, you can directly call and chat with family and friends anytime anywhere. (Note: The watch must also turn on bluetooth). In addition, this fitness watch can Timely remind you of text messages, calendar events and other social media applications (Facebook, WhatsApp, Twitter, etc.) so you don't miss anything important.Heart rate & sleep monitor This fitness tracker supports automatic heart rate monitoring around the clock. You can check your heart rate changes at any time. The sleep monitoring function of the mens smartwatch can also record your sleep status to help you understand the sleep data (deep sleep, light sleep, sleep and wake time). You will be given reference numbers for daily health analysis to help you build a healthier lifestyle.IP67 Waterproof & Other Features IP67 waterproof men's watch can withstand daily sweat and rain without having to worry about damaging the watch while washing your hands. (Note: The watch should not be worn in hot showers, diving, etc. ) This activity tracker also has a photo remote control, a music control, a stopwatch, a seat reminder and much more. The multifunctional design offers you a varied experience.10 sport modes & weather display Smartwatches for men support 10 sport modes like walking, running, cycling and climbing. Automatically track number of steps, burn calories, walking distance, it can help you understand your daily activity data effectively. The stainless steel smartwatch has a weather and temperature display. After connecting the smartphone and the app, you can synchronize the local weather conditions.