Our Samsung Galaxy S21 Ultra 5G cases have been tested over and over again (by machines that carry out an incredible 1.5 million calculations in one go!) using methods independently approved by the UK’s National Physical Laboratory. Whether you’re looking for clear S21 Ultra cases that never yellow or one of our bestselling Evo Check cases with its multi-drop protection up to 12ft, you’ll find it in our out-of-this-world collection.