Amazon.com: Annymall Galaxy A21s Case US Version, Full Body A21s Phone Case with Built in Screen Protector Three Layer Hybrid Heavy Duty Protection Cover for Samsung Galaxy A21s (Purple/Mint) : Cell Phones
Amazon.com: for Samsung Galaxy A21 Screen Protector, 2pcs Full Coverage High Clear Screen Protector Tempered Glass for Samsung Galaxy A21 / Samsung Galaxy A21S : Cell Phones & Accessories
Tempered glass for Samsung Galaxy A21S camera lens screen protector for Samsung Galax A21 A12 A02s EU protective glass film - AliExpress
Amazon.com: Supershieldz (6 Pack) Designed for Samsung Galaxy A21s Screen Protector, Anti Glare and Anti Fingerprint (Matte) Shield : Cell Phones & Accessories