The Samsung Galaxy S21 is a flagship smartphone with a 6.2-inch Dynamic AMOLED 2X display, a powerful processor, and an advanced camera system. It features a triple rear camera setup, including a 12MP wide-angle lens, a 12MP ultrawide lens, and a 64MP telephoto lens. The device offers 128GB of internal storage and has a sleek and modern design. It is powered by a high-performance processor and has a 4,000mAh battery with support for fast charging. The Galaxy S21 runs on Android with Samsung's One UI interface and includes features like facial recognition, an ultrasonic fingerprint scanner, and IP68 water and dust resistance.