Question 1

Will this screen protector fully cover the curved edges of the S21 Ultra without an air gap?**

Accepted Answer

It's designed with a 3D curved profile, but some users—especially those sharing installation tips on Reddit—note that a tiny halo can appear on the most extreme curve due to the tempered glass's rigid structure. For best adhesion, apply it carefully using the included alignment frame, and pair it with a slim case. If you're very particular about seamless edge coverage, you might prefer a UV-cured liquid adhesive protector instead.

Question 2

Does the camera lens protector affect photo quality?**

Accepted Answer

A handful of TikTok reviewers have pointed out that the lens protector can create slight lens flare or reduce sharpness in low-light shots. However, the majority of buyer feedback confirms that under normal daylight conditions, image quality remains excellent. The protector is tempered glass with an anti-glare coating, so it's a good trade-off if you want scratch defense for your camera module.

Question 3

Will the fingerprint sensor work normally after installation?**

Accepted Answer

Yes, but you'll likely need to re-register your fingerprints after applying the protector. Some users in our reviews mentioned that pressing a bit firmer or increasing touch sensitivity in the display settings solved any sluggishness. In rare cases, if the glass isn't fully seated, the sensor may be less responsive—just press firmly around the sensor area during installation.

Question 4

Is this safe to use with a thick or military-grade case?**

Accepted Answer

It works best with slim to medium cases. Thicker cases, especially those with raised edges, can push against the protector and cause lifting over time. Many buyers on YouTube recommend testing the fit with your case before finalizing installation. The pack includes three protectors, so you have a backup if the first attempt doesn't sit perfectly with your case.

Question 5

What if the glass gets damaged or starts peeling after a few months?**

Accepted Answer

The included camera lens protector has a simple peel-and-stick design, but the main screen glass uses standard adhesive (not UV glue). Some long-term reviews mention edge peeling after 2–3 months, especially in dusty pockets. Didisky's after-sales support generally offers a replacement for manufacturing defects. For extra peace of mind, consider registering your purchase or contacting their support team directly within the first 30 days.

Didisky 3+2 Pack Screen Protector for Samsung Galaxy S21 Ultra Tempered Glass and Camera Lens Protector,3D Curved Full Coverage,Scratch-Resistant, HD,Easy to Use,Bubble Free, 9H

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