New, Unused 【Equipped with the Latest Bluetooth 5.3 & Supports Calls】The Rmana smart watch, compatible with Android, features a built-in speaker and high-performance microphone, allowing you to make calls without taking out your smartphone. After connecting to the dedicated app, you can make/end calls, answer/reject/mute calls directly from the smartwatch. This is convenient when driving or during sports when your hands are occupied. 【Convenient Mute/Vibration Notifications】The Rmana smart watch, compatible with Android, allows you to adjust the vibration strength on the device itself from "weak / strong" in two levels. You can also freely set the ringtone mode and mute (silent mode). You can customize the notification method according to the situation, so you can avoid disturbing others while ensuring you don't miss important notifications. You can set it to weak vibration for quiet study in the library, and turn on strong vibration + ringtone in a crowded exhibition hall to ensure you catch important calls. 【AI Voice Assistant Activation】You can activate Siri with your voice. It supports a wide range of commands, such as music playback, weather checks, and quick dialing. It completely frees your hands, enabling more efficient and convenient smart operations. For example, while driving, you can simply speak what you need without taking your eyes off the road, and Siri will make calls or switch music. 【Over 100 Sports Modes & IP Waterproof Performance】Supports over 100 sports modes, covering common sports. Accurately records exercise data such as distance and calories burned, from jogging in the park in the morning to cycling by the lake on the weekend. With a wide variety of sports modes, fitness enthusiasts and beginners can find a monitoring method that suits their activity, supporting scientific exercise and efficient training. This IP67 waterproof sports watch is ideal for everyday handwashing, rainy days, surfing, and other scenarios. However, do not use it in hot water, bathrooms, saunas, or while diving. 【1.43-inch Large Screen & Various Watch Faces】The Rmana smart watch, compatible with Android, features a 1.43-inch display with an AMOLED screen, achieving high-definition display with 466x466 pixels. You can select various watch face designs in the dedicated "DaFit" app.