The Apple Watch SE smart watch has a bright Retina screen with a thin frame. If necessary, the user can independently select a watch face from the Apple library Set your own photo or motivational image to your screensaver. The device connects to a smartphone wireless headphones and various compatible devices via Bluetooth communication module or Wi-Fi adapter. Thanks to built-in sensors, the watch detects the user's heartbeat and also monitor sleep quality. This allows you to increase the effectiveness of your training and create an optimal activity plan for the day..