【Bluetooth 5.3, Call Function, Incoming Call Notification, SOS Function】This smartwatch is equipped with advanced Bluetooth 5.3, offering faster transfer speeds and a wider communication range. The stability of the connection has also been significantly improved. After pairing, you can make and reject calls directly from the smartwatch. Call history and call logs can also be saved. You can also check message notifications from apps such as LINE, Twitter, Facebook, and email. You won't miss messages even during meetings or on the train. In addition, the SOS function is equipped, allowing you to make emergency calls in urgent situations. 【1.9-inch Large Screen, Long Battery Life】The 1.9-inch full-touch screen displays notifications and text on a larger, more precise screen. Equipped with a 300mAh large-capacity battery, it can last for 8-15 days on a single full charge. No need for frequent charging. 【Freely Customizable Watch Faces】You can freely switch between over 200 types of wallpapers in the dedicated app (and more are being updated). 【Activity Tracker, Multiple Sports Modes】Equipped with various sports modes such as running, cycling, and basketball, it's useful as a sports watch. It records data such as steps, calories burned, and distance, allowing you to set exercise goals based on your physical condition and manage your exercise volume and time rationally. 【24-Hour Health Management】With a built-in high-sensitivity detection center, simply wearing the smartwatch allows you to fully grasp your physical condition throughout the day and easily check your health. 【Music Player, Voice AI Assistant】The smartwatch has a music playback function. As a music player, you can play music from your smartphone through the smartwatch and easily control music start/stop, previous song, and next song. You can also call up Siri, the smart voice AI assistant, to access news, check the weather, make calls, and more. 【Packed with Convenient Features & Life Waterproof】This smartwatch is compatible with iPhone and Android. It's equipped with practical features such as weather forecast, stopwatch, remote camera, alarm, breathing training, and women's menstrual cycle management, supporting your daily life. It's life waterproof, so it's okay for sweat, rain, and splashes. You don't need to take it off when washing your hands or face in daily life. It is not completely waterproof, so please refrain from using it for swimming, hot springs, or bathing.