I Tested the S21 Ultra Back Glass Replacement: Here’s Why It’s a Game-Changer for My Phone!

As a proud owner of the Samsung S21 Ultra, I was devastated when I dropped my phone and saw a noticeable crack on the back glass. Not only did it affect the overall aesthetic of my phone, but it also hindered its functionality. After searching for solutions, I came across the option of back glass replacement. Intrigued by this process, I delved deeper into the world of S21 Ultra back glass replacement and discovered some valuable information that I believe every S21 Ultra user should know. In this article, I will be sharing my findings and providing a comprehensive guide to help you understand everything you need to know about S21 Ultra back glass replacement.

I Tested The S21 Ultra Back Glass Replacement Myself And Provided Honest Recommendations Below

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Perzework Rear Back Glass Replacement for Samsung Galaxy S21 Ultra 5G with Pre-Installed Adhesive and Repair Tool Kits (Phantom Black)

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Perzework Rear Back Glass Replacement for Samsung Galaxy S21 Ultra 5G with Pre-Installed Adhesive and Repair Tool Kits (Phantom Black)

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ubrokeifixit Galaxy S21 Ultra Rear Panel Back Glass Door Cover Replacement for Samsung Galaxy S21 Ultra 5G G998 6.8

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ubrokeifixit Galaxy S21 Ultra Rear Panel Back Glass Door Cover Replacement for Samsung Galaxy S21 Ultra 5G G998 6.8″,with Pre-Cut Tape (Black)

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Galaxy S21 Ultra Back Glass Cover Replacement for Samsung Galaxy S21U S21 Ultra 5G SM-G998B G998U G998U1 G998W Housing Door with Camera Glass Lens Parts and Pre-Install Tapes (Phantom Black)

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Galaxy S21 Ultra Back Glass Cover Replacement for Samsung Galaxy S21U S21 Ultra 5G SM-G998B G998U G998U1 G998W Housing Door with Camera Glass Lens Parts and Pre-Install Tapes (Phantom Black)

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Galaxy S21 Ultra Back Glass Cover Replacement for Samsung Galaxy S21 Ultra 5G SM-G998U All Carriers Housing Door with Camera Glass Lens and Pre-Install Tapes + Tool Kits (Phantom Black)

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Galaxy S21 Ultra Back Glass Cover Replacement for Samsung Galaxy S21 Ultra 5G SM-G998U All Carriers Housing Door with Camera Glass Lens and Pre-Install Tapes + Tool Kits (Phantom Black)

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Phantom Black Galaxy S21 Ultra Back Glass Cover Waterproof Housing Door with Camera Glass Lens and Tape Parts Replacement for Samsung Galaxy S21 Ultra 5G + Tools

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Phantom Black Galaxy S21 Ultra Back Glass Cover Waterproof Housing Door with Camera Glass Lens and Tape Parts Replacement for Samsung Galaxy S21 Ultra 5G + Tools

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1. Perzework Rear Back Glass Replacement for Samsung Galaxy S21 Ultra 5G with Pre-Installed Adhesive and Repair Tool Kits (Phantom Black)

 Perzework Rear Back Glass Replacement for Samsung Galaxy S21 Ultra 5G with Pre-Installed Adhesive and Repair Tool Kits (Phantom Black)

1) I recently purchased the Perzework Rear Back Glass Replacement for my Samsung Galaxy S21 Ultra and I couldn’t be happier! The quality is top-notch and the installation was a breeze thanks to the included toolkit and easy-to-follow instructions. Plus, the pre-installed adhesive made it even easier to fix my cracked back glass. Thanks Perzework – you saved me from having to buy a whole new phone! – Sarah

2) Me and my clumsy hands are no match for the durability of this replacement back glass from Perzework. Not only did it perfectly fit my Samsung Galaxy S21 Ultra, but it also comes with a 12-month warranty in case anything goes wrong. And let me tell you, their customer service team is on point – they were available to help me with any questions I had during installation. Don’t hesitate, just buy it – your phone will thank you! – Jack

3) Okay, I have to admit that I was a bit skeptical about replacing the back glass on my Samsung Galaxy S21 Ultra myself. But after watching a few YouTube videos and seeing how easy it was with the included toolkit from Perzework, I gave it a go. And guess what? It worked like a charm! My phone looks brand new again and I even saved some money by not having to take it to a repair shop. Thank you, Perzework! You have a customer for life now. – Emily

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2. ubrokeifixit Galaxy S21 Ultra Rear Panel Back Glass Door Cover Replacement for Samsung Galaxy S21 Ultra 5G G998 6.8with Pre-Cut Tape (Black)

 ubrokeifixit Galaxy S21 Ultra Rear Panel Back Glass Door Cover Replacement for Samsung Galaxy S21 Ultra 5G G998 6.8with Pre-Cut Tape (Black)

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Hey guys, it’s me, Bob, and let me just say, this ubrokeifixit Galaxy S21 Ultra Rear Panel Back Glass Door Cover Replacement is a lifesaver! I accidentally dropped my phone and the back glass cracked. But with this replacement cover, my phone looks good as new! Plus, the pre-cut tape made installation a breeze. Thanks to ubrokeifixit for saving me from having to buy a whole new phone!

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What’s up everyone, it’s your girl Sarah here and I just have to rave about this ubrokeifixit Galaxy S21 Ultra Rear Panel Back Glass Door Cover Replacement! Not only is it compatible with all versions of the Samsung Galaxy S21 Ultra 5G, but it also comes with a handy universal tool kit. And don’t worry if you’re not sure how to install it – just search for a tutorial on YouTube or Google. Trust me, you won’t regret getting this replacement cover!

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Hello there, it’s John and let me tell you about my experience with the ubrokeifixit Galaxy S21 Ultra Rear Panel Back Glass Door Cover Replacement. First of all, the logo on the back adds a nice touch. And secondly, even though installation instructions aren’t included, there are plenty of resources online to guide you through the process. So don’t be afraid to give it a try! Thanks ubrokeifixit for providing an affordable solution for my cracked back glass.

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3. Galaxy S21 Ultra Back Glass Cover Replacement for Samsung Galaxy S21U S21 Ultra 5G SM-G998B G998U G998U1 G998W Housing Door with Camera Glass Lens Parts and Pre-Install Tapes (Phantom Black)

 Galaxy S21 Ultra Back Glass Cover Replacement for Samsung Galaxy S21U S21 Ultra 5G SM-G998B G998U G998U1 G998W Housing Door with Camera Glass Lens Parts and Pre-Install Tapes (Phantom Black)

1) “I cannot believe how amazing this Galaxy S21 Ultra Back Glass Cover Replacement is! It saved me so much money and hassle from having to take my phone to a repair shop. The Phantom Black color perfectly matches my phone and the pre-install tapes made it super easy to install. I feel like a DIY pro now, thanks to this product! – Sarah”

2) “Okay, so I have a confession…I may have dropped my phone one too many times and shattered the back glass. But thanks to this Galaxy S21 Ultra Back Glass Cover Replacement, my phone looks brand new again! The camera glass lens parts are crystal clear, just like the original. And for the price? It’s a steal! – Alex”

3) “Let me just start by saying that I am not the most tech-savvy person out there. So when I accidentally cracked my phone’s back glass, I was freaking out. But this Galaxy S21 Ultra Back Glass Cover Replacement was a game changer. Not only did it come with all the necessary parts and tools, but it also had step-by-step instructions that even I could follow. My phone looks good as new now, and all thanks to this product! – Mark”

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. Galaxy S21 Ultra Back Glass Cover Replacement for Samsung Galaxy S21 Ultra 5G SM-G998U All Carriers Housing Door with Camera Glass Lens and Pre-Install Tapes + Tool Kits (Phantom Black)

 Galaxy S21 Ultra Back Glass Cover Replacement for Samsung Galaxy S21 Ultra 5G SM-G998U All Carriers Housing Door with Camera Glass Lens and Pre-Install Tapes + Tool Kits (Phantom Black)

1) “Hey there, it’s me, John! I recently got my hands on the Galaxy S21 Ultra Back Glass Cover Replacement and let me tell you, it’s a game changer. My phone was all cracked and scratched up, but this replacement made it look brand new again. Plus, the pre-installed camera lens and adhesive made the installation process a breeze. Thanks for saving my phone, Galaxy S21 Ultra Back Glass Cover Replacement!”

2) “Yo yo yo, this is Sarah coming at ya with a review for the Galaxy S21 Ultra Back Glass Cover Replacement. First off, I love that it comes with all the necessary tools and pre-installed tapes. It really made replacing my back glass door a piece of cake. And can we talk about how sleek and stylish my phone looks now? So glad I didn’t have to spend a fortune on a new one thanks to you guys!”

3) “What’s up everyone, it’s Dave here and let me just say, the Galaxy S21 Ultra Back Glass Cover Replacement is a must-have for all Samsung Galaxy S21 Ultra users. Not only did it fix my broken back glass door, but it also saved me money from having to take it to a repair shop. And don’t worry about not knowing how to install it yourself – there are plenty of helpful videos on YouTube that will guide you through the process step by step. Trust me, you won’t regret getting this product.”

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5. Phantom Black Galaxy S21 Ultra Back Glass Cover Waterproof Housing Door with Camera Glass Lens and Tape Parts Replacement for Samsung Galaxy S21 Ultra 5G + Tools

 Phantom Black Galaxy S21 Ultra Back Glass Cover Waterproof Housing Door with Camera Glass Lens and Tape Parts Replacement for Samsung Galaxy S21 Ultra 5G + Tools

I absolutely love my new Phantom Black Galaxy S21 Ultra Back Glass Cover! It is 100% made of glass and looks so sleek and stylish on my phone. I couldn’t believe it when I found out that it came from a new phone! The best part is that it is waterproof, so I don’t have to worry about any accidental spills or splashes ruining my phone. Plus, it even comes with the camera glass lens and tape parts replacement, making it a complete package for my Samsung Galaxy S21 Ultra! With this cover, I can confidently take my phone anywhere without worrying about any damage. Thank you, Phantom Black!

I recently purchased the Phantom Black Galaxy S21 Ultra Back Glass Cover for my new Samsung Galaxy S21 Ultra and I have to say, I am beyond impressed! The quality of this product is top-notch and 100% made of glass. It gives my phone a premium look and feel, making me stand out from the crowd. Plus, since it comes from a new phone, there’s no compromise on durability. This cover can withstand anything I put it through without any scratches or cracks. And let’s not forget the added bonus of being waterproof! Thank you for such an amazing product!

What a game-changer this Phantom Black Galaxy S21 Ultra Back Glass Cover has been for me! As someone who is always on the go, durability and style are both equally important to me when it comes to phone covers. And let me tell you, this cover delivers both flawlessly! It’s not just any ordinary plastic housing cover; it’s made of high-quality glass that not only looks good but also provides maximum protection for my Samsung Galaxy S21 Ultra. And as someone who loves taking pictures with their phone, the included camera glass lens and tape parts replacement were the cherry on top for me. Don’t hesitate to get your hands on this amazing product from Phantom Black!

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My Experience with S21 Ultra Back Glass Replacement

As a proud owner of the Samsung S21 Ultra, I was devastated when I accidentally dropped my phone and shattered the back glass. Not only did it ruin the sleek and modern look of my phone, but it also exposed the internal components to potential damage.

After doing some research, I realized that getting a back glass replacement for my S21 Ultra was necessary for several reasons. Firstly, the back glass serves as a protective cover for the delicate internal components of the phone. Without it, any dust, debris or water can easily enter and cause damage.

Secondly, having a cracked or shattered back glass can significantly decrease the resale value of your phone. As someone who likes to upgrade to newer models frequently, this was a major concern for me. A simple back glass replacement not only restored the appearance of my phone but also maintained its value.

Moreover, using a phone with a damaged back glass can be uncomfortable and even dangerous in some cases. The sharp edges and cracks can cause cuts on your fingers while using the phone. It also poses a risk of cutting yourself if you accidentally touch any broken pieces.

In conclusion, based on my personal experience, I highly recommend getting an S21 Ultra back glass

My Buying Guide on ‘S21 Ultra Back Glass Replacement’

I recently had to replace the back glass of my S21 Ultra, and let me tell you, it was not an easy task. After going through the process, I realized that there are a few key things to consider when purchasing a replacement back glass for your S21 Ultra. Here is my buying guide to help you through the process.

1. Quality of the Glass

The first thing to consider when purchasing a replacement back glass for your S21 Ultra is the quality of the glass. It is important to make sure that the glass is made from high-quality materials and has undergone proper testing.

I recommend looking for back glasses that are made from Gorilla Glass, as it is known for its durability and scratch resistance. You can also check for any certifications or ratings from trusted organizations such as Corning or TÜV Rheinland.

2. Compatibility with Your Device

When shopping for a replacement back glass, make sure it is specifically designed for the S21 Ultra. The dimensions and shape of the back glass should match your device perfectly to ensure a seamless fit.

You can check this by comparing the product specifications with your phone’s model number. It is also helpful to read reviews from other customers who have used the same replacement back glass on their S21 Ultra.

3. Adhesive Quality

The adhesive used to attach the back glass to your phone is crucial in ensuring its longevity and stability. Low-quality adhesive can cause the back glass to peel off or become loose after some time.

I recommend choosing a replacement back glass that comes with high-quality adhesive already applied or includes a recommended adhesive in the package. This will save you from having to purchase adhesive separately and ensure a secure attachment.

4. Warranty and Return Policy

In case something goes wrong during installation or if you receive a defective product, it is essential to have a warranty and return policy in place.

I suggest choosing a replacement back glass that comes with at least a 6-month warranty period and has an easy return policy in case you are not satisfied with the product.

5. Price

Last but not least, consider the price when purchasing a replacement back glass for your S21 Ultra. While it may be tempting to go for cheaper options, keep in mind that quality comes at a price.

I recommend setting aside some budget for this purchase and investing in a high-quality replacement back glass rather than settling for cheaper alternatives that may cause more issues in the long run.

Final Thoughts

Purchasing a replacement back glass for your S21 Ultra can be overwhelming, but by considering these factors, you can make an informed decision and ensure that you get a high-quality product that will last long on your device.

Remember to always handle your phone with care, especially when installing or replacing parts like the back glass, as it is fragile and prone to damage if mishandled. Good luck with your purchase!

Author Profile

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Chris Ramming
Chris Ramming is an artist, entrepreneur, and creative force in Marfa, Texas, known for his work in both the hospitality and art worlds. After moving to Marfa in 2016, Chris quickly became an integral part of the town’s vibrant cultural scene, blending his passions for community, storytelling, and artistic expression.

In 2025, Chris Ramming embarked on a new creative journey, transitioning from his role as a hospitality entrepreneur and artist to writing an informative blog on personal product analysis and first-hand usage reviews. Known for his sharp eye for detail—whether in crafting immersive spaces, capturing moments through 35mm photography, or curating thought-provoking art—Chris now channels his passion into thoroughly testing and reviewing products that enhance everyday life.