The Samsung Galaxy S21 is a flagship smartphone released in 2021. It features a 6.2-inch Dynamic AMOLED 2X display with a 120Hz refresh rate, Exynos 2100 (or Snapdragon 888) processor, and 8GB RAM. The phone has a triple-camera system (64MP + 12MP + 12MP), supports 8K video recording, and includes a 4,000mAh battery with fast charging. It also has 5G connectivity, an IP68 water-resistant rating, and an in-display fingerprint scanner. The S21 runs on Android 11 (upgradable) with Samsung’s One UI interface.