Very clean watch, very practical use, elegant. Works with Samsung phones. Comes in three colors: white (original), black, and gray. Supports Samsung Pay. Vital indicators, date, timer, and calendar. Android system, apps can be downloaded. Easy settings. Measures stress, diet, and many other features like measuring physical activity, calculating calories, and making/receiving calls (without a SIM card). Bluetooth. Very advanced notification system that syncs with the phone, and more.