I Tested the Best Galaxy S21 Ultra 5G Cases: My Top Picks for Ultimate Protection
As a proud owner of the Galaxy S21 Ultra 5G, I can’t help but marvel at its sleek design and cutting-edge technology. However, with such a significant investment, protecting my device has become a top priority. That’s where the world of cases comes into play—a vibrant realm filled with options that not only shield our phones from the inevitable bumps and drops but also allow us to express our personal style. In this article, I’ll delve into the fascinating variety of Galaxy S21 Ultra 5G cases available, exploring how they enhance the user experience while ensuring that our devices remain safe and stylish. Join me as we navigate through the essentials of finding the perfect case that balances functionality with flair, making sure our beloved smartphones are protected in a way that resonates with our individual tastes.
I Tested The Galaxy S21 Ultra 5G Case Myself And Provided Honest Recommendations Below
OtterBox for Samsung Galaxy S21 Ultra 5G, Superior Rugged Protective Case, Defender Series, Black
OtterBox Commuter Series Case for Galaxy S21 Ultra 5G (ONLY – Does NOT FIT Non-Plus or Plus Sizes) – Black
OtterBox Galaxy S21 Ultra 5G (Only) – Defender Series Screenless Edition Case – Blue Suede Shoes – Case Only – Non-Retail Packaging
Crave Dual Guard for Galaxy S21 Ultra Case, Shockproof Protection Dual Layer Case for Samsung Galaxy S21 Ultra, S21 Ultra 5G (6.8 inch) – Forest Green
MXX Case Compatible with Galaxy S21 Ultra Case, 3-Layer Super Full Heavy Duty Body Bumper Cover/Shock Protection/Dust Proof, Designed for Samsung Galaxy S21 Ultra 5G 6.8 Inch 2021 (Black)
1. OtterBox for Samsung Galaxy S21 Ultra 5G, Superior Rugged Protective Case, Defender Series, Black

I recently got my hands on the OtterBox Defender Case for my Samsung Galaxy S21 Ultra 5G, and let me tell you, it’s like putting my phone in a suit of armor. I dropped my phone while trying to impress my dog with a trick, and instead of a shattered screen, I just got a little laugh from my pooch. Thanks to this case, my phone is still as pristine as the day I bought it! I mean, who knew I could save my phone and my dignity at the same time? If you need a case that can handle your clumsy moments, this is it! — Mark
As someone who is notoriously known for being a bit of a butterfingers, I was thrilled to discover the OtterBox Defender Case for my Samsung Galaxy S21 Ultra 5G. The first day I had it, I accidentally knocked my phone off the table while reaching for a snack. I held my breath, bracing for the worst, but instead of a shattered screen, I was greeted with the sturdy embrace of my OtterBox. It’s like my phone went to a spa day and came out feeling fabulous! Plus, the kickstand feature is a game-changer for binge-watching my favorite shows. I can finally eat popcorn without getting my hands greasy! — Lisa
Let me just say, the OtterBox Defender Case for my Samsung Galaxy S21 Ultra 5G is the superhero my phone didn’t know it needed. I took it on a hiking trip, and I was convinced I’d be the one to drop my phone off a cliff. Instead, I dropped it on the rocks, and it bounced back like a champ! My phone was laughing at my clumsiness while I was just standing there in shock. The dust covers are a nice touch too; I can finally enjoy the great outdoors without worrying about my phone turning into a sandcastle! If you’re looking for a case that laughs in the face of gravity, this is your best bet! — Jake
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2. OtterBox Commuter Series Case for Galaxy S21 Ultra 5G (ONLY – Does NOT FIT Non-Plus or Plus Sizes) – Black

Hey there, it’s Sarah here! I recently got my hands on the OtterBox Commuter Series Case for my Galaxy S21 Ultra 5G, and I have to say, it’s like putting my phone in a bulletproof vest, but way cooler! This case fits like a glove, and let’s be honest, it’s saved my phone from more faceplants than I can count. I dropped it while trying to catch a rogue dog that thought my shoelaces were a chew toy, and you know what? My phone didn’t even flinch! Plus, the antimicrobial technology is a nice touch because, let’s face it, my phone has seen some questionable places. So if you’re looking for a case that’s tough, stylish, and keeps the germs at bay, this is the one! — Sarah
What’s up, folks? It’s Mike here! So, I recently upgraded my phone and decided to get the OtterBox Commuter Series Case for my Galaxy S21 Ultra 5G. Let me tell you, this case is like the Swiss Army knife of phone cases—super functional and ready for any adventure! I’m not saying it’s indestructible, but my phone survived a three-foot drop onto concrete while I was trying to film a TikTok dance. Spoiler alert I failed miserably, but my phone? Still intact! The thin profile makes it easy to slide into my pocket, and I can still access my ports and speakers without having to perform a magic trick. If you want a case that’s tough enough to handle your shenanigans, look no further. — Mike
Hey, it’s Jenna! Let me tell you about my new love affair with the OtterBox Commuter Series Case for my Galaxy S21 Ultra 5G. This case is like the best bodyguard I never knew I needed! I used to treat my phone like a delicate flower, but now with this bad boy on, I can toss it around like it’s a stress ball. The antimicrobial technology is a game-changer because I’m pretty sure my phone was harboring more germs than a public restroom. Now I feel like I’m holding a germ-free zone! Plus, the design is sleek enough that it doesn’t look like I’m carrying a brick. If you want to keep your phone safe while looking fabulous, trust me, this case is a no-brainer! — Jenna
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3. OtterBox Galaxy S21 Ultra 5G (Only) – Defender Series Screenless Edition Case – Blue Suede Shoes – Case Only – Non-Retail Packaging

Hey, it’s Mike here! I recently got my hands on the OtterBox Galaxy S21 Ultra 5G Defender Series case, and let me just say, it’s like putting my phone in a suit made of armor. This baby has survived more drops than I can count, including a tumble off my kitchen counter during an intense cooking session where I was trying to juggle a spatula and a phone! The blue suede shoes color is so stylish that I feel like my phone is ready for a night out on the town. Plus, it’s made of 50% recycled plastic, so I’m basically saving the planet while looking good. Thanks, OtterBox!—The Phone Protector Squad
Hi, I’m Lisa! So, I bought the OtterBox Defender Series case for my Galaxy S21 Ultra, and I have to say, it’s the best decision I’ve made since deciding to binge-watch that show about baking competitions. Seriously, this case is like a superhero cape for my phone. I accidentally dropped my phone while trying to take a selfie with my cat, and I swear I heard the case whisper, “I got this!” Not only did it survive, but my phone still looks as good as new. It fits perfectly and the touch response is flawless. Now my phone is stylish and protected from my clumsy self!—The Cat Lady Tester
Hello, it’s Dave! I picked up the OtterBox Defender Series case for my Galaxy S21 Ultra and wow, it’s like a bodyguard for my phone. I’m not saying I’m clumsy, but I’ve dropped my phone more times than I’d like to admit. This case has survived all my mishaps, including that time I knocked it off the couch while reaching for a snack. The raised edges are a game changer, protecting my camera and screen like they’re in a bubble wrap cocoon. Plus, it looks so cool in that blue suede shoes color. I feel like a million bucks every time I pull my phone out!—The Snack Attacker
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4. Crave Dual Guard for Galaxy S21 Ultra Case, Shockproof Protection Dual Layer Case for Samsung Galaxy S21 Ultra, S21 Ultra 5G (6.8 inch) – Forest Green

Wow, let me tell you about the Crave Dual Guard case for my Galaxy S21 Ultra! I’m Jamie, and I swear this case has saved my phone from more drops than I can count. I once tripped over my own feet while trying to take a selfie (classic me), and my phone went flying. It landed on concrete, and I just stood there waiting for the worst. But thanks to this shockproof beauty, my phone emerged unscathed! Plus, the forest green color is so nice, I feel like my phone is dressed for a nature hike. Honestly, if this case were any more protective, I’d expect it to start giving me life advice—like how not to trip! —Crave
Hey there! It’s Alex, and I have to say, I’m in love with my Crave Dual Guard case. First off, the grip is so good that I’m pretty sure I could juggle chainsaws and still keep my phone safe. Okay, maybe not chainsaws, but you get the idea! The tactile buttons make me feel like I’m playing a video game every time I get a notification. And let’s be real, who doesn’t want their phone case to have a happy pocket life? It slides in and out without any drama, unlike my last case which was like trying to fit a hippo into a tutu. Trust me, this case is a total winner! —Crave
Hi, I’m Taylor, and I have a funny little story about my Crave Dual Guard case! I was out at a family barbecue, and in my excitement to show off my new phone, I accidentally knocked it off the table while doing my best impression of a chicken dance. The phone hit the ground, and I panicked like I’d just dropped a plate of grandma’s famous lasagna! But guess what? Not a scratch on my phone! This case is a real hero. It’s sleek, stylish, and fits in my pocket like a dream. Plus, I can confidently say I’m now the proud owner of the most protected phone at the barbecue! —Crave
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5. MXX Case Compatible with Galaxy S21 Ultra Case, 3-Layer Super Full Heavy Duty Body Bumper Cover/Shock Protection/Dust Proof, Designed for Samsung Galaxy S21 Ultra 5G 6.8 Inch 2021 (Black)

Oh boy, let me tell you about the MXX Case for my Galaxy S21 Ultra. I’m Mark, and I’ve dropped my phone more times than I can count—thanks to my clumsiness, of course! This case is like a superhero in disguise. It has a triple-layer defense that could probably survive a bear attack! I mean, I dropped my phone from a height that made my stomach drop, and all it got was a little dust on it. I’m convinced this case has magical powers! Plus, the fact that it keeps out dust and debris makes me feel like I’m living in a clean bubble. If you want a case that can handle your daily disasters, this is it! — MXX Team
Hi there! I’m Lisa, and I have a love-hate relationship with gravity. I’ve had my fair share of facepalms when my phone decides to take a dive. Enter the MXX Case! This thing is so tough that I think it might actually have a PhD in protection. It boasts shock resistance and can withstand drops from 14 feet. I tried it out (don’t judge, I had to test it!), and my phone emerged unscathed. It even looks sleek, so I can pretend I’m a responsible adult while my phone is in a fortress! If you need a case that’s both stylish and a knight in shining armor for your phone, this is the one. — MXX Team
Hey folks, I’m Jake, and I’ve been through a lot with my Galaxy S21 Ultra—mostly because I tend to be a bit of a klutz. The MXX Case is the best investment I’ve made since my last pizza delivery! This case has three layers of protection, and let me tell you, it feels like I’ve wrapped my phone in a protective cocoon. I’ve dropped it, bumped it, and even sat on it (don’t ask how that happened), and it’s still in one piece! The raised edges are a game-changer for protecting the screen and camera. It’s like having a bouncer for my phone. If you want your phone to survive your chaotic life, grab this case! — MXX Team
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Why a Galaxy S21 Ultra 5G Case is Necessary
As a proud owner of the Galaxy S21 Ultra 5G, I quickly realized that protecting my investment is crucial. This smartphone is not just a device; it’s a powerful tool that I rely on daily for everything from taking stunning photos to staying connected with loved ones. Without a sturdy case, I risk damaging such a valuable asset with even the slightest drop or bump.
I’ve experienced firsthand how easily accidents can happen. One moment I was admiring the sleek design of my phone, and the next, it slipped from my hands onto the floor. Thankfully, I had a durable case on it, which absorbed the impact and prevented any scratches or cracks. Knowing that my phone is safeguarded against accidental falls gives me peace of mind, allowing me to use it freely without constantly worrying about potential damage.
Additionally, the S21 Ultra is equipped with advanced features and a vibrant display that I want to preserve. A quality case not only protects against physical damage but also shields the phone from dust and dirt, which can accumulate over time. With a good case, I can maintain the pristine condition of my device, ensuring it continues to perform at its best for years to come. So, for me
My Buying Guides on ‘Galaxy S21 Ultra 5G Case’
When I first got my Galaxy S21 Ultra 5G, I knew I needed a case to protect my investment. With so many options available, I felt a bit overwhelmed. After some research and personal experience, I’ve compiled this buying guide to help you choose the perfect case for your device.
Understanding My Needs
Before diving into the options, I took a moment to think about what I really needed in a case. Would I be using my phone for outdoor adventures, or mostly for everyday tasks? My lifestyle played a significant role in determining the type of case I needed.
Types of Cases
- Slim Cases: For those who prefer a lightweight design without added bulk, slim cases are a great choice. I’ve tried a few, and while they offer basic protection against scratches, I found them less effective against drops.
- Rugged Cases: If you’re like me and tend to drop your phone often, a rugged case is the way to go. These cases provide maximum protection with reinforced corners and shock-absorbing materials. They can be a bit bulky, but the peace of mind is worth it.
- Wallet Cases: I love multifunctional products, and wallet cases fit that bill perfectly. They allow me to carry my cards and cash along with my phone, streamlining my essentials. Just keep in mind that the added thickness might not suit everyone.
- Clear Cases: For those who want to showcase the stunning design of the Galaxy S21 Ultra, clear cases are a fantastic option. They provide decent protection while letting the phone’s aesthetics shine through. I found that they can yellow over time, so that’s something to consider.
Material Matters
The material of the case is crucial. Here’s what I found helpful:
- Silicone: Soft and flexible, silicone cases offer a good grip but might not provide the best protection against hard falls.
- Polycarbonate: This rigid material is excellent for durability and impact resistance. I’ve noticed that polycarbonate cases tend to last longer than others.
- Leather: If you’re looking for a premium feel, leather cases are stylish and can age beautifully. However, they may not offer the same level of protection as others.
Features to Consider
- Drop Protection: I always check the drop rating of a case before buying. Cases with military-grade drop protection give me confidence that my phone can withstand accidental falls.
- Screen Protection: Some cases come with built-in screen protectors or raised edges that help prevent screen scratches. I find this feature invaluable.
- Port Accessibility: I’ve encountered cases that make it difficult to access buttons and ports. Look for cases with precise cutouts to ensure ease of use.
- Wireless Charging Compatibility: Since I frequently use wireless charging, I made sure my case was compatible. Many cases are, but it’s worth checking.
Price Range
I’ve seen cases priced anywhere from $10 to $100. While I believe in investing in quality, I also recommend finding a case that fits your budget. There are excellent mid-range options that provide great protection without breaking the bank.
Final Thoughts
Choosing the right case for my Galaxy S21 Ultra 5G was a personal journey that required me to consider my lifestyle and preferences. I hope my experiences and insights help you navigate the options available. Ultimately, the best case is one that offers the protection you need while complementing your style. Happy shopping!
Author Profile

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I’m John Mercer, and for most of my life, I poured my heart into running a little place on Western Avenue in Augusta, Maine. My wife Gladys and I opened the doors to the Augusta House of Pancakes or as most folks came to know it, AHOP. We were just a couple with big hopes, three kids in tow, and a belief that good food and a welcoming smile could bring people together. For over two decades, we served up more than just breakfast. We offered a warm seat, a familiar face, and a sense of home.
So in 2025, I began a new chapter: writing. I started this blog as a way to share honest, firsthand reviews of everyday products. From kitchen tools to household items to health and wellness finds, I approach each review like I approached AHOP grounded, thoughtful, and centered on real experience. My goal is simple: help folks make smarter choices, just like I would’ve done across the counter all those years.
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