1. Bluetooth call function: K57 Pro smart watch supports Bluetooth call function, users can directly answer and make calls through the watch without carrying a mobile phone, which is convenient for daily communication. 2. Large-size touch screen: The watch is equipped with a 1.96-inch large-size touch screen with a high resolution of 320*386 pixels, which can provide a clear and bright display effect, allowing users to easily check time, message notifications, and health data wait. 3. High-capacity battery: The K57 Pro watch has a built-in 360mAh high-capacity battery, which can provide a long battery life, so that users do not need to charge frequently, making it more convenient for daily use. 4. Multiple intelligent functions: In addition to Bluetooth calls, the K57 Pro watch is also equipped with multiple intelligent functions, such as heart rate monitoring, blood pressure monitoring, sleep monitoring, step counting, etc., which can monitor and record the user's health data in real time, providing a comprehensive health management. 5. Stylish design: The watch has a stylish design, suitable for wearing on various occasions, and it is also waterproof and dustproof, which increases durability and applicability. To sum up, the K57 Pro smart watch provides users with convenient communication and health management functions through Bluetooth calls, large-size touch screen, high-capacity battery and multiple smart functions, and at the same time has a stylish appearance and waterproof and dustproof performance , is a full-featured and practical smart watch.