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Best Samsung Galaxy S21 cases: how to protect your S21, S21 Plus or S21 Ultra

Best Samsung Galaxy S21 cases
(Image credit: Samsung)

Samsung’s latest flagship S range includes the Galaxy S21, Galaxy S21 Plus and Galaxy S21 Ultra. All three of these are top-end and expensive phones, so it's likely you'll want to defend your device with a case. 

While the 'Glasstic' feel of the S21 and S21 Plus are undoubtedly good-looking, it’s almost always a good idea to put your new handset in a case – especially with sizeable displays such as these.

With that in mind, we’ve sifted through every case available right now to bring you a selection of the best Galaxy S21, Galaxy S21 Plus and Galaxy S21 Ultra cases. 

We haven't had all of these Samsung Galaxy S21 cases in our test labs yet, but based on our experts' opinion and knowledge of the most reputable brands around, we think these are worth looking at.

Our selections take into account online reviews, brand reputation, product capability, or unique features, to help you pick through the maze of choices available to you.

Best Samsung S21, Samsung S21 Plus and Samsung S21 Ultra cases 

Best Samsung Galaxy S21 cases

(Image credit: Samsung)

1. Samsung LED Cover

Your case can do more

Reasons to buy
+Great for quick access to controls +Interior pocket 
Reasons to avoid
-Won’t offer a huge amount of protection 

Samsung’s LED cover may look a bit on the basic side, but look closer and it offers more than you may expect.

For one, the LED display can show you the time at a glance, and you can customize it to display alerts without needing to open it up.

It also has an antimicrobial coating to kill bacteria (ideal in today’s world) and offers an interior pocket for your credit card or ID. 

Best Samsung Galaxy S21 cases

(Image credit: Speck)

2. Speck Presidio 2 Grip

Grip for days

Reasons to buy
+Durable +Armour Cloud cushions the phone from falls 
Reasons to avoid
-A little on the ugly side, if we’re being honest 

Have you ever wanted to drop your phone 13 feet just to see if it survived? Well, now you can, and it will – as long as it’s got this Presidio2 Grip from Speck on it.

Sure, it’s not going to win any beauty contests, but it’s as durable as they come thanks to mini airbags that the company dubs Armor Cloud Technology. 

As the name suggests, there’s plenty of grip, too, as well as an antimicrobial coating and a raised bezel to help keep your screen intact – yes, even from 13 feet.

Best Samsung Galaxy S21 cases

(Image credit: Caseology)

3. Caseology Vault

Inexpensive but very effective

Reasons to buy
+Great price+Slim
Reasons to avoid
-A little on the boring side

Caseology’s case ticks all the right boxes for a great price. It has a raised bezel to keep your screen free from scratches, and the camera module gets the same treatment. 

It’s thin enough to support wireless charging and PowerShare, and it only adds 0.15-inches to the device’s overall thickness. All of this for just over $10 is a steal, honestly.

Best Samsung Galaxy S21 cases

(Image credit: Mous)

4. Mous Limitless

Magnetic aesthetic

Reasons to buy
+AiroShock technology prevents impact damage +Magnetic accessories available 
Reasons to avoid
-Not the most visually striking case 

Mous is undoubtedly one of the most popular case manufacturers for now, and for good reason. Its Limitless 3.0 range is excellent on all phones, and the same is true for the Samsung S21 range.

Offering face-down protection, as well as the company’s own AiroShock technology to provide drop resistance while maintaining a svelte form-factor that doesn’t add bulk to your phone. It’s available in a series of finishes, too – we’re quite partial to the walnut.

Best Samsung Galaxy S21 cases

(Image credit: Otterbox)

5. OtterBox Pop Symmetry Series

Customisable and reliable

Reasons to buy
+Customizable elements +Antimicrobial Technology 
Reasons to avoid
-Quite bulky 

Otterbox has long been the go-to brand for solid, hefty mobile phone protection, and this Pop Symmetry series doesn’t disappoint.

Offering three times the drop protection of the military standard, it also has a nifty customizable back panel that lets you add some more color or add a grip to help with taking photos.

It also has antimicrobial technology to keep bacteria off of the device that you hold against your head multiple times a day.

Best Samsung Galaxy S21 cases

(Image credit: Spigen)

6. Spigen Tough Armor Case

Kick(stand) back and relax

Reasons to buy
+Kickstand for movie marathons +Solid construction at a low price 
Reasons to avoid
-Not much to look at 

As always, Spigen offers a robust case option with a very low price tag and hasn’t compromised on features.

The Tough Armor series is exactly that – tough. It’s got air cushion technology in the corners and a raised bezel, and it’s made from a dual-level polycarbonate material which means it feels solid in the hand.

If you’re looking to use your device’s gorgeous display for streaming, though, you’ll perhaps be most pleased to know that it also offers a kickstand for viewing on a table or flat surface.

Best Samsung Galaxy S21 cases

(Image credit: Samsung)

7. Samsung Silicone Cover Case

Basic, but official

Reasons to buy
+Soft texture +Section for the S-Pen 
Reasons to avoid
-Expensive for what it is.

Sure, picking the official option isn’t the most exciting choice, but Samsung’s standard silicone offering makes a solid case for itself.

With a lovely soft-touch finish, it’s ideal for heavy S-Pen users since it has a small cutaway on the side to be able to grab your stylus whenever you need it.

The only issue is arguably the price, but with it being the official option you’d imagine it’ll offer the most secure fit possible – and that can only be good for your device.

Best Samsung Galaxy S21 cases

(Image credit: ESR)

8. ESR Project Zero Clear-View Slim Case

A very slim option

Reasons to buy
+'Almost-not-there' design'+Non-slip finish 
Reasons to avoid
-Unlikely to protect as well as some others on this list 

Another excellent budget-conscious option, ESR’s thin case will allow you to show off your phone in all of its glory, and is shock-resistant.

An anti-slip coating helps it stay in your hand, and micro-dots on the inside prevent it from sticking to your phone. Add in a raised bezel to protect the display and camera, and you’ve got a bargain.

Clckr Clear Stand Case

(Image credit: Clckr)

9. Clckr Clear Stand Case

Both case and phone stand

Reasons to buy
+It's a stand as well as case+Firm grip
Reasons to avoid
-Not the smartest looking of cases

Want a phone case that also doubles up as a highly effective stand? This Clckr Clear Stand Case does exactly that. Able to stand up in either portrait or landscape mode, it's ideal if you regularly watch streaming content or want to showcase something to a friend. The stand also stretches out to form a grip you can hold onto such as while running. 

Alongside that, it offers 2m drop protection and it also has antimicrobial protection so it kills up to 99.99% of germs.