Tempered glass or hydrogel film — what is the difference?

Tempered glass (9H hardness) protects against drops and scratches and feels like the real screen under your finger. Hydrogel film is thinner and flexible, sits properly on a curved screen and heals surface scratches by itself — but it does not absorb impact. For most phones we recommend tempered glass.

Does a screen protector make the display worse?

No. A good protector has over 99% light transmission and an oleophobic coating that repels fingerprints. Colours and brightness stay the same.

Will a protector interfere with the fingerprint reader?

Tempered glass can slow down an in-display reader slightly. Hydrogel film works better with that technology. Tip: re-register your fingerprints after fitting the protector.

How often should a screen protector be replaced?

Replace it as soon as you see cracks or deep scratches — a cracked protector no longer protects properly. A good one typically lasts 6–12 months.

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Fits: Realme C21Y

Phone Screen protectors

Tempered Glass HARD 2.5D for REALME C21Y

SKU: 5900217945055

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Protection

Reliable device protection

Quality

Premium materials

Perfect Fit

Designed for your device

Compatible devices

C21Y

Description

HARD Glass 2.5D tempered glass

This model-specific tempered glass protects the flat part of the screen against scratches and breakage. Precise cutouts provide access to the required ports and buttons, while high transparency and retained touchscreen sensitivity support comfortable use.