For Samsung Galaxy S21 (SM-G990/G991). The screen is very fragile, we highly suggest you ask a professional technician to install, and pls make sure testing all the functions well before installation.
eBay
4Pcs HD Clear Full Screen Protector for Galaxy S25 S24 Ultra S25 Edge S23 S22 S21 Plus S24 S23 S21 FE 9H Hardness Tempered Glass
Aliexpress UK
Applicable: For S21 5G G998U, G998B, G998FDS Phone. Item Type: Touch Screen Display Digitizer Assembly. 1 x Touch Screen Display Digitizer Assembly. Application: It's used to replace or repair your faulty screen, slow respond touch, display problems, distortion pixels, cracked screen, touch problems, wrong color issues, old, broken and dead screen or any other problems around display.
eBay
3Pcs Anti Spy Tempered Glass Film for Galaxy S25 S24 Ultra S25 Edge S23 S22 S21 Plus S23 S24 S21 FE 9H Privacy Screen Protector
Aliexpress UK
Samsung Galaxy S21 Ultra 5G G998. Quality：OLED. Compatible Model.
eBay
3Pcs Privacy Screen Protector Tempered Glass For Samsung S25 S24 Ultra S23 S22 S21 Plus S24 S23 S21 FE Protective Glass
Aliexpress UK
Applicable: For S21 5G G998U, G998B, G998FDS Phone. Item Type: Touch Screen Display Digitizer Assembly. 1 x Touch Screen Display Digitizer Assembly. Application: It's used to replace or repair your faulty screen, slow respond touch, display problems, distortion pixels, cracked screen, touch problems, wrong color issues, old, broken and dead screen or any other problems around display.
eBay
2Pcs Ultra HD Screen Protector for Samsung S25 S24 Ultra S21 S23 S24 FE Tempered Glass for Samsung S21 S22 S23 Plus S25 Edge
Aliexpress UK
Samsung Galaxy S21 S22 S23 Ultra A51. Replace cracked or scratched out glass screen lens. It is used to repair faulty screen and replace your broken, cracked or non-working front screen glass. 1 x Front Outer Glass With OCA.
eBay
4Pcs Privacy Hydrogel Film For Samsung Galaxy S25 S24 S23 Ultra S21 S22 Plus S21 S23 S24 FE S25 Edge Full Cover Screen Protector
Aliexpress UK
This part is solely compatible with the Samsung Galaxy S21. Compatibly: Samsung Galaxy S21. ManufacturerInjured Gadgets. Colour : Grey. Samsung Phone Parts. Display Type. About Replace Base. PartScreen Assembly.
eBay
2Pcs Ultra HD Screen Protector for Samsung Galaxy S25 S24 S23 Ultra S22 S21 S20 Plus S24 S21 S23 FE Anti-Scratch Tempered Glass
Aliexpress UK
👀EK Pro OLED /OEM AMOLED Differents OEM AMOLED:More expensive, display color and refresh rate with the original screen has been . EK Pro OLED :Cheaper, less colorful than the original screen, refresh rateonly supports 60HZ.
eBay
3Pcs HD Clear Tempered Glass for Samsung Galaxy S25 Edge S24 S23 S25 Ultra S20 S21 S22 Plus S24 S21 FE Premium Screen Protector
Aliexpress UK
For Samsung Galaxy S21 Ultra 4G 5G G998（Smaller OLED）. Instruction is NOT included,LCD Display is Smaller than OEM. SM-G998U, SM-G998B, SM-G998U1, SM-G998W, SM-G998N, SM-G9980.
eBay
2Pcs Anti Spy Full Screen Protector for Samsung Galaxy S25 S24 Ultra S23 S22 S21 Plus S20 S21 S23 FE Anti-Scratch Tempered Glass
Aliexpress UK