The best Samsung Galaxy S21 Plus thin cases to buy

October 05, 2022

David Imel / Android Authority

Samsung’s Galaxy S21 Plus is a beast of a device, coming in with a 6.7-inch display. Of course, you’ll want to keep the phone safe from harm seeing as it costs a cool $1,000. The best way to do so might be with a case that offers solid protection without much bulk. We’ve put together our list of the best Samsung Galaxy S21 Plus thin cases to help you choose.

Looking for more ways to keep your phone safe and get the most out of it? Don’t forget to check out our guide for the best case brands and mobile accessories you can get! For more options, don’t forget to also check out our roundup of the best Galaxy S21 Plus cases you can get.

The best Samsung Galaxy S21 Plus thin cases:

Editor’s note: We will update this list of the best thin cases for the Samsung Galaxy S21 Plus as they release.

Spigen Rugged Armor

Spigen is among the top names in phone cases, and it won’t surprise you to see the brand pop up once or twice on our list. This first option, the Rugged Armor, is one of the best Galaxy S21 Plus thin cases if you want sleek, flexible protection. It’s matte black from top to bottom, but the TPU construction means that you can apply and remove the case itself in just seconds. You’ll also find some carbon fiber details that add an extra touch of style.

If you want to add a little bit of color to your Galaxy S21 Plus, look no further than the Nano Pop from Caseology. It skips the boring (or traditional) matte black finish in favor of bright colors. You can grab gray, navy blue, or purple bases paired with mint, yellow, or violet camera housings respectively. Outside of the color options, the Nano Pop features Caseology’s standard Air Space technology in all four corners to keep your phone safe from harm.

Sometimes it helps to go straight to the source for a thin Samsung Galaxy S21 Plus case, just take this silicone cover for example. It’s one of Samsung’s many first-party offerings, and it offers decent drop protection with almost no bulk. The silicone cover is easy to apply or peel off, and it comes in four different colors to match your phone. It also covers the camera housing between each lens so you should be safe from drops at most angles.

Spigen Liquid Air Armor

We’re back to Spigen for another matte black thin case to protect your Galaxy S21 Plus. However, the Liquid Air Armor isn’t a simple TPU case. It adopts a full-length pattern of triangles on the back to give your grip a solid boost. You should have no problem keeping hold of your Galaxy S21 Plus, and it shouldn’t slip off of most surfaces. Even if you do drop your phone, the Liquid Air Armor is MIL-STD 810G rated with an internal spider web of reinforcement.

Speck Presidio2 Grip Galaxy S21 Plus thin case

The Samsung Galaxy S21 Plus is a large, slick slab of glass, and it can be tough to grip in bad conditions. Speck’s Presidio2 Grip can help to make those fears a thing of the past. It features rows of tactile grips all across the soft-touch back panel, and it comes exclusively in a matte gray finish. Even though Speck’s Presidio2 Grip is one of the thinnest on the list, it’s designed to handle impacts from up to 13 feet thanks to durable Armor Cloud technology.

ESR metal kickstand case

One of the best uses for Samsung’s massive 6.7-inch display is to binge your favorite content. This ESR case with a metal kickstand is any Netflix or Hulu junkie’s dream, especially if you want to watch hands-free. The case itself is crystal clear so you can show off your Phantom finish, and the kickstand itself works well both vertically and horizontally. If you don’t like the clear look, you can also grab the ESR case in transparent black.

Smartish Wallet Slayer

Thin cases for the Samsung Galaxy S21 Plus don’t have to be one-trick ponies. The Smartish Wallet Slayer not only keeps your phone safe but can also free up some extra pocket space while you leave your wallet behind. It offers a rear-mounted pocket where you can store a few cards or bundle up some cash. Unfortunately, you’ll have to remove your cards or cash if you want to take advantage of wireless charging.

The Encased Thin Armor may not add much bulk to your phone, but it’s nice to see an included holster. It relies on a quick-release latch for easy access, and the holster frees up all of the pocket space you could ask for. Encased’s Thin Armor is yet another matte black option, and the thin TPU design is easy to apply and remove quickly. The case even makes the most of an internal honeycomb structure to provide extra reinforcement.

Ringke Fusion-X Galaxy S21 Plus thin case

We’re big fans of the Ringke Fusion-X here at Android Authority, and we’ll recommend it for just about any device. It features a unique geometric TPU bumper and a durable polycarbonate nack panel for some serious hybrid protection. Ringke’s Fusion-X also comes in a variety of new finishes including black camo, Ticket Band, and Cross. You can even add a lanyard to the Quik Catch holes to carry your Galaxy S21 Plus hands-free.

One final thin case to consider for your new Galaxy S21 Plus is the UAG Plasma. It’s another primarily clear option, though the matte black bumpers at the top and bottom provide the bulk of UAG’s protection. The case itself is MIL-STD 810G certified, and you can choose from four military-inspired finishes. UAG’s Plasma is thin enough to support wireless charging, and the internal honeycomb structure helps to defend against drops and scratches.

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