The Samsung Galaxy S21 Ultra 5G is a high-end smartphone released by Samsung in 2021. It has a 6.8-inch Dynamic AMOLED 2X display with a resolution of 1440 x 3200 pixels and a 120Hz refresh rate, and is powered by Samsung's Exynos 2100 or Qualcomm's Snapdragon 888 chipset, depending on the region. It has a quad 108-megapixel rear camera system with ultra-wide, wide, and two telephoto lenses, as well as a 40-megapixel front-facing camera with autofocus and 4K video recording. The Samsung Galaxy S21 Ultra 5G comes in storage options of 128GB, 256GB, or 512GB, and has a non-removable 5000 mAh battery with fast charging and wireless charging capabilities. Other features include 5G connectivity, an under-display fingerprint sensor, water and dust resistance, and support for Samsung's S Pen stylus, which can be purchased separately. It runs on Android 11 with Samsung's One UI 3.1, and is available in phantom black and phantom silver color options.