Smart watches with call functionSmart watches with microphones can support two-way calls.After connecting the smart watch to the phone via 'Da Fit' software and Bluetooth,you can synchronize the contacts in the phone to the watch,and you can also manually enter the number on the watch and dial it without inserting a SIM card.The sound from the watch is loud and clear. Health TrackingMens fitness watch supports real-time heart rate, blood pressure,sleep(Deep sleep, light sleep, wake up time).You only need to check the data on the app every day to easily understand your physical condition. Mens smart watches to help you get a healthier lifestyle and body. Warm reminder: All the above data is for reference only and cannot replace medical treatment. Compatible phoneSmartWatches are compatible with smartphones with Android 4.4, iOS 8.4 and Bluetooth 5.0 or higher. Information reminder functionThe smart watch suitable for Samsung Android iOS phones also has various information reminders. You only need to set the one-key open information permission in the 'Da Fit' application, so that the information will be displayed on the smart watch and notify you through the vibration mode, so that you will not miss any important information. For example, call, SMS, Facebook, Twitter, WhatsApp, Instagram, Skype, Gmail, etc. 10 sports modes and other functionsMen's fitness watches have 10 sports modes to choose from, such as walking, running,football, basketball, etc. Through exercise mode, you can clearly understand the calories you burn and exercise time, so as to motivate yourself to achieve your exercise goals. The smart watch also has functions such as stopwatch, countdown, alarm clock, sedentary reminder, remote photo taking, drinking water reminder, music control, calendar, etc.