This smart watch has a 1.32-inch full touch screen, supports call functions, and has Bluetooth connectivity. At the same time, the watch is suitable for both men and women and has a built-in fitness tracker and heart rate monitor. 1. The screen size is 1.32 inches. You can operate the watch by touching the screen, display information, adjust settings, etc. 2. The call function allows you to make voice calls directly through the watch without taking out your phone. This feature is useful for making calls or staying connected while exercising. 3. The watch supports Bluetooth connection and can be connected wirelessly to mobile phones or other Bluetooth devices to facilitate you to receive incoming calls, text messages and other notifications. 4. The fitness tracker can monitor your exercise status, including steps, distance, calorie consumption, etc., to help you with health management and exercise plans. 5. The heart rate monitor can monitor your heart rate changes in real time, let you understand your health status, and provide heart rate warning reminders.