There are so many to choose from to compliment the phone and a person's wants and needs.
Personally I prefer a minimalist approach.
For my phone's I choose the Samsung Black Leather Back Case.
Your s21 Ultra may have a factory fitted tpu screen protector already so please check by using your fingernail.
If your wanting to apply your own screen protector then remove this before applying your own.
My personal preference is the Whitestone Dome Glass Screen Protector.
Current Phone ~
Samsung Note 20 Ultra 5G SM-N9860_256Gb SnapDragon 865+
Samsung One Ui 3.1/ Android 11.
@Thurgood88: We've got a few great options to choose from on our website. To find out more, please check out the link below.