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🛡️ Protect your Galaxy in style—because your screen deserves the ultra treatment!
The LK Galaxy S21 Ultra Screen Protector offers ultra-thin (1mm) TPU protection with 9H hardness, ensuring scratch resistance without compromising touchscreen sensitivity or fingerprint recognition. Designed specifically for the Galaxy S21 Ultra, it features precise cutouts, a lightly textured non-slip backing, and includes a full installation kit for easy, bubble-free application. This 3-pack delivers premium, case-friendly protection that keeps your phone looking pristine and feeling sleek.








| ASIN | B08PYRXVBW |
| Best Sellers Rank | 41 in Mobile Phone Screen Protectors |
| Brand | LK |
| Brand Name | LK |
| Clarity | 0.99 |
| Colour | Transparent |
| Compatible Cellular Phone Models | Samsung Galaxy S21 Ultra |
| Compatible Devices | Samsung Galaxy S21 Ultra |
| Compatible Phone Models | Samsung Galaxy S21 Ultra 5G |
| Compatible devices | Samsung Galaxy S21 Ultra |
| Compatible phone models | Samsung Galaxy S21 Ultra 5G |
| Country of Origin | China |
| Customer Package Type | Flat Free Package (FFP) |
| Customer Reviews | 4.4 out of 5 stars 42,832 Reviews |
| Finish Type | Glossy |
| Item Dimensions L x W | 10L x 6W centimetres |
| Item Hardness | 9H |
| Item hardness | 9H |
| Manufacturer | LK |
| Material | Thermoplastic Polyurethane |
| Model Name | Samsung Galaxy S21 Ultra |
| Model Number | Samsung Galaxy S21 Ultra |
| Number of Items | 3 |
| Part Number | LK-ZU TPU-Posit-3PACK |
| Product Warranty | 1 year |
| Product dimensions | 10L x 6W centimetres |
| Screen Size | 6.8 Inches |
| Screen Surface Description | Glossy |
| Special Features | flexible |
| Unit Count | 3.0 count |
| Water Resistance Level | Water Resistant |
C**T
Didn't last long.
UPDATE: well, it looked good, but after a couple of days it's peeling at the edges. Not so impressed. Really excellent - I can't even tell it's on there, but it is, and it's great. The provided applicator works well. A couple of tips I would add: 1. be obsessive about getting dust off the display before applying the protector. 2. When pressing down the lower holes of the film base on to the upright posts, they don't go right don to the base - just over the narrower top parts of the posts. You may have to haul the film down to get them on. 3. When they say "avoid contact with display", they're serious - after pulling the orange tab out, don't touch the top of the phone/applicator at all, just slide the roller down. Once I got all that figured out, it worked fine.
A**R
They Lift Off
Bottom line if you want a screen protector to last longer than a week or 2, don't buy... The first protector stayed on the phone for about a week before I noticed bubbles in the corners and down the left side. I thought it was because I hadn't cleaned the screen correctly before application; however upon inspection noticed the protectors were lifting off. I thought this was an isolated problem; however I am onto the third and final protector in the pack and I've had the same issue every time. This is not my first instance of using screen protectors and I've never had this issue with the screen lifting off before, hence me taking the time to write this review. I can only put this down to poor quality materials. Application is easy enough with the included frame and while the protectors were attached to the screen they were reasonably good at reacting to my touch; however this faded quickly with the issues described above.
D**S
Very poor product dont buy
Ive had a iPhone 4, 6 and 7 and never had a screen cover, only a case . when i bought an X and with the screen size decided to buy some covers for it. product is VERY easy to install tidy, However after 2 weeks the screen cover started to peel off. so then i swapped it for another one. seemed to hold well. i dropped the phone and it cracked from the corner under the screen cover to the other side. what a complete waste of money. so now i have a cracked screen under a cover thats meant to protect it. DO NOT WASTE YOUR MONEY ON THIS PRODUCT
J**0
Pretty awful.
I use the LK screen protectors on my Apple Watch and they’re amazing. You genuinely can’t tell they’re on once applied. So I thought I’d grab some for my phone too. They’re pretty much the worst screen protectors I’ve ever used. Firstly when you apply they don’t stick 100% there’s always a few parts around the edge of the screen that don’t stick. Then there’s the fact they move. I’ve never had I screen protector do this ever but all three of these did it. You apply. Use the applicator included so obviously it’s exactly where it should be on the screen. A few days later it’s moved. First one moved to the side second towards the bottom. Each time leaving a portion of the screen unprotected. Given I’ve treated my phone no differently with this protector as I have with any other and it’s never happened before I can only assume it’s the protectors.
B**D
Horrific - breaks straight away
I used the first of three screen protectors, which I applied using the tool and followed instructions exactly. There were multiple air pockets under the screen which would not go away. I therefore removed after an hour and tried again - I put this down to my lack of experience. I then put a second screen on my phone in exactly the same way. I did not have the air bubble issue to the same extent this time, however the corners have chipped in three places on this within two days of it being on my phone. I have not dropped or scratched my phone at all in this time. I previously had a screen protector which lasted a whole 6 months before it cracked. I am appalled at the quality of this item, this has been a total waste of money for me. The only good thing I can say about this is the applicator does help with lining up the protector to your phone.
H**R
Worst screen protector ever
Bought these back in July 2025 and used one. Came to replace it as it was peeling around the edges and the fingerprint was no longer registering due to the scratches on the screen protector. When taking the screen protector off, it did not peel off smoothly but left sticky residue and kept tearing on removal. Took me over an hour to attempt to get the ticket residue off my phone screen and still some remains. Thank goodness my phone is water resistant since the bulk of it had to be removal with dish liquid, a microfiber cloth, lots of elbow grease and water. Only used one of the screen protectors in the box and it was applied following the instructions, but after how they remove I won't be using them again! The rest went straight in the bin. Avoid! Avoid! Avoid!
R**Y
Not worth the money
Bought these are they had good reviews. Followed the tutorial step by step as per the qr code guide. Firstly the iPhone is hard to get aligned into holder correctly. Next when you pull the plastic strip as instructed and then press on the screen the screen protector it did not stick to screen. The screen protector actually broke on first attempt. Applied the second protector to holder ( difficult to attach). This one applied as it did in the tutorial but had many bubbles after applying. The camera lens again one didn’t stick on first attempt , second one is kinda sticking. I’ve bought and applied many screen protectors over the years and this has been by far the worst I’ve had. I’ve had other Lk products and they have been very good. Overall would not recommend to anyone.
A**R
Useless and a waste of money!!!!
This is the second pack of these I have purchased within a month. The first covers installed lasted about three weeks, and I noticed some flaking at the edges, this caused an air pocket that could not be pushed or eased out, so I ordered a replacement. I’ve just had the new ones arrive and they two of the three screens have frayed edges, I can see form the ones removed that there is an additional plastic screen fitted to the protective cover, I’m assuming this makes it tempered, however once the frayed edges appear, that renders the whole thing useless. I tried to fit the replacement, but have opened the packaging and cover so unable to return so have thrown away. In my option, look at an alternative option as these clearly do not work.
H**R
Buena calidad
Lo he recibido hace un rato, la verdad es que encaja perfectamente en mi Samsung Galaxy S21 5G, el material parece de muy buena calidad y resistente, y el diseño peinado de la parte trasera me gusta mucho, solamente le añadiría algo de goma a la parte trasera para mejor adherencia en superficies planas.
P**O
Ottima protezione convenienza assicurata
Consegna secondo politica AMAZON pienamente rispettata. Si tratta di vetri protettivi temperati che offre un ottima protezione per lo schermo. Nella confezione c'è anche un kit di montaggio (tamponcini per la pulizia delle superfici, adesivi guida se non andasse bene la cornice guida adesivo assorbi polvere, pezzolina e mascherina guida per un valido e preciso incollaggio. La confezione comprende ben 3 vetri protettivi particolare molto interessante che conferisce un ottimo rapporto qualità prezzo. Ripartendo l'importo che ho speso per l'acquisto ogni vetro mi è costato 2 euro circa. Il prodotto si presenta estremamente resistente e non penso si possa danneggiare assolutamente comunque con il tempo se dovesse scollarsi e/o fare le classiche bolle ho da sostituire. Oltre a fornire un'ottima protezione la pellicola non interferisce minimamente con la sensibilità del touch. Il montaggio è estremamente semplice eventualmente per i più negati sul sito del produttore vi sono anche video dimostrativi. Inoltre all'interno della confezione si trova un coupon con i dati per ricevere un regalo a scelta tra caicatore veloce o wireless oppure cavi di alimentazione oppure chiavette storage usb da 32 gb. Vi saprò dire se effettivamente inviano ciò che promettono
M**A
Buena compra
Compre esta carcasa x la buena relación calidad precio y sobretodo pq me parecía q protegía muy bien mi iPhone 13pro sin estropear el diseño de este, la trasera es mate, y los cantos transparentes. Yo quería un carcasa q protegiese sin ocultar el color y las características del móvil q es muy bonito. Trae dos protectores de pantalla muy fáciles de poner con la guía q viene, tb trae 2 protectores de las lentes de la cámara q no iba usar porque me parecían q quedaban feos pero al final lo he puesto y parece q queda mas protegido, la carcasa tiene un reborde q protege las cámaras, tb vienen unas toallitas y un paño para limpiar el aparato antes de poner el protector de pantalla y de cámaras. De momento contenta con la compra.
R**R
Good screen protector that works
I bought a new phone, a pricey investment for me, and my son recommended I get a tempered glass screen protector. I searched and researched and ultimately bought this one, and am so glad I did. It was easy to install, allowed touch use of my screen, and when my phone fell off the kitchen counter and crashed into my cats dishes, the screen protector cracked, but my phone is a ok. Awesome. Thank you. With the multi pack, I removed the shattered one, replaced, and am good to go. I thought my phone was destroyed. But it's absolutely fine. So glad I bought this.
C**N
Saved my Screen!
Bought this for cheap because I read the reviews and it seemed decent. I learn on my own that this screen protector is actually super good! I dropped my phone FACE FIRST directly on concrete and the only thing that broke was the screen protector. No scratches or dents. No cracks or anything. They also send you two sets of camera and screen protectors so I had a backup!! It comes with a sanitizing wipe, sticker tab for dust and a frame to help you put your screen protector on with precision. Friggin 9/10 would recommend. Hope this was helpful for someone.
Trustpilot
2 months ago
4 days ago