Samsung Galaxy S21 Ultra Silver slate
Robert Triggs / Android Authority

Samsung’s new Galaxy S21 Ultra is the most powerful Galaxy flagship yet. It packs revamped cameras, S Pen support, and a brilliant 6.8-inch display. The 120Hz refresh rate and QHD+ resolution are incredible, but you have to take care to keep the massive device safe. Here are our picks for the best Samsung Galaxy S21 Ultra cases you can buy.

See also: Samsung Galaxy S21 Ultra review

The best Galaxy S21 Ultra cases:

Editor’s note: We’ll be sure to update this list of the best Galaxy S21 Ultra cases as new options launch, so check back regularly.

Ringke Air Galaxy S21 Ultra case

The Ringke Air is a great way to keep your protection as simple as possible. It’s a flexible TPU option, and it employs a microdot matrix on the back panel to prevent the rainbow effect. Ringke’s Air case for the Galaxy S21 Ultra offers solid protection against scratches, and a pair of Quik Catch holes allows you to add a lanyard for hands-free carrying. It may not be the best case for drops, but the raised bezels should help in a pinch.

See also: The best Ringke cases

Spigen Ultra Hybrid

Spigen is a top name in the case game, and the Ultra Hybrid is one of our favorite models for any device. It does a great job at protecting the Galaxy S21 Ultra, and you can grab the case with either a clear bumper or a matte black option. Either way, the entire polycarbonate back panel is crystal clear so that you can show off your phone’s finish. The case provides raised protection for all buttons, but it’s thin enough to allow wireless charging.

See also: The best Spigen cases



If you want an unbelievably thin case, then the PHNX MNML Case might be the perfect case for you. At just 0.35mm thin, you’ll barely even notice that you have a case on your S21 Ultra. The case works with wireless chargers, is branding free and has protective camera cutouts. The PHNX MNML Case sells for $27 and is available in 3 colors, frosted black, white, and matte black. Right now, you can get 15% off your order with discount code 15AA at checkout.

Speck Presidio2 Grip

Speck’s Presidio2 Grip ditches the transparent finish, but it’s not likely to slip out of your hands at any point. The case comes in a matte gray finish lined with raised ridges that offer a better grip than previous versions. Speck boasts that its Presidio2 Grip can handle drops from up to 13 feet without a problem, thanks to the Armor Cloud technology. It should keep your Galaxy S21 Ultra safe with the raised bezels on the front and around the camera unit.

See also: The best Speck cases

Spigen Rugged Armor

We’re right back to Spigen for another Galaxy S21 Ultra case, though the Rugged Armor is much different than the Ultra Hybrid. It sports a black finish with a few carbon fiber details, and the entire case is made of flexible TPU. You should be able to apply or remove the case in seconds. Spigen’s Air Cushion technology and internal spider web pattern should offer solid protection against drops, but TPU isn’t always the most scratch-resistant.

Caseology Nano Pop

The Nano Pop from Caseology is a relative newcomer to our case lists, but it’s an excellent option for slim protection. It’s a matte case, but you can grab yours in either gray or navy blue. The Nano Pop name comes from the small ring of color around the camera unit, and the navy blue option comes paired with a raised yellow lip. If you prefer the gray case, you’re looking at a mint green pop of color instead. Either way, you’ll have Air Space technology in all four corners to guard your Galaxy S21 Ultra.

See also: The best Caseology cases

UAG Civilian Galaxy S21 Ultra case

UAG’s Civilian line of cases may not look quite as rugged as the Plasma line, but don’t let that fool you. It’s engineered with Hyper Cush technology for maximum impact protection, and it features a MIL-STD 810G rating. You can even choose from several muted shades like Eggplant, Mallard, and Olive. All options come with a small orange highlight on the front of the case, and a honeycomb pattern helps to protect the inside of the case.

See also: The best UAG cases

Incipio Grip

If you’re prone to dropping your phone, the Incipio Grip might be an option to consider. It’s similar to the Speck Presidio2 Grip in that it features a raised pattern, but the Incipio Grip keeps the texture confined to the side rails. The case comes in black or navy blue, and it offers a raised 1.7mm lip for extra screen protection. It’s rated for 14-foot drops, though you shouldn’t have to worry about falls from that height too often.

See also: The best Incipio cases

Samsung S-View Cover

Third-party cases dominate our list for the Galaxy S21 Ultra, but sometimes you have to go right to the source for protection. The S-View Cover adopts a folding folio design, which is great if you want to keep your device protected from all angles. It also has a clear panel on the front so you can check on your all-important notifications without unlocking your phone. If you plan to use an S Pen with your Galaxy S21 Ultra, there’s an alternate version of the S-View Cover with a special storage slot.

See also: The best official Samsung Galaxy S21 Ultra cases

ESR metal kickstand case

Samsung’s Galaxy S21 Ultra is a beast of a phone, no doubt about it. As a result, it’s a great option if you want to stream your favorite shows from Netflix, Hulu, or otherwise. If you’re hoping to watch your shows hands-free, you might want to invest in this ESR case. It features a durable metal kickstand that works either vertically or horizontally, and the clear finish shows off the design of your phone. You can also grab a black version if you prefer to hide your phone away.

Smartish Wallet Slayer

The Galaxy S21 Ultra isn’t exactly the most pocket-friendly phone on the market right now; just look at the size. If you plan to fit it in your pocket, you may want to free up some other space. One of the best ways to do so is with a clever wallet case. This option from Smartish is called the Wallet Slayer, and it adds a simple slot on the back to store a few cards. You won’t find a cash pocket, but the back panel comes in various bright finishes.

See also: The best phone wallet cases

Ocase Galaxy S21 Ultra wallet case

If you’re set on a wallet case, this Ocase option takes a more traditional approach to protection. It’s a folding folio that comes in a nice mix of colors and locks in place with a magnetic clasp. The Ocase wallet is made of soft PU leather and has a TPU bumper that helps to absorb impacts if you should drop it. You can store up to three cards in the folding folio, and a large cash pocket gives you even more flexibility.

Spigen Tough Armor

One final option from Spigen, the Tough Armor, is the way to go if you want to maximize your protection. It comes in Gunmetal or black, and it relies on a hybrid design to keep your Galaxy S21 Ultra safe from both drops and scratches. You can even pop open the small kickstand for hands-free media streaming. The Spigen Tough Armor is thicker and more durable than the other Spigen options on the list, though it’s still thin enough to support wireless charging.

Otterbox Commuter

Otterbox is another obvious choice if you want to place protection above all else. The Commuter series is one of the lighter options, and it no longer comes with a built-in screen protector. It’s a two-piece hybrid case with Drop+ protection on the inside, and you’ll only find the Otterbox Commuter in matte black. Otterbox claims that its Commuter case comes with a MIL-STD 810H rating for three times the military standard, but ideally, you won’t have to find out.

See also: The best Otterbox cases

Supcase UB Pro Galaxy S21 Ultra case

The last option, but certainly not the least, on our list of the best Samsung Galaxy S21 Ultra cases, is the Supcase UB Pro. It’s a highly durable option, and you can grab yours in any of four colors, including red, blue, and purple. Like many other durable options, the UB Pro is a hybrid case with a stiff lip that reinforces the display. You won’t find a built-in screen protector, but the UB Pro is built so you can add your preferred display protection.

See also: The best Supcase cases