(Samsung's Silicone Cover with S Pen ) Put your phone in a case—especially if it costs $1,200. We have a great roundup of third-party Samsung Galaxy S21cases on our site right now, but as I'm using an S21 Ultra as my primary phone, I decided to request a few official Samsung cases for hands-on testing. Three are just okay. One could be a game changer. The game changer is Samsung's Silicone Cover with S Pen ($69.99). This case basically turns your phone into a Galaxy Note, along with protecting the phone, for $30 less than the price differential between the S21 Ultra and the Note. It's a black silicone sleeve that goes over your phone, with a grippy slot on the left side that holds an included S Pen.