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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Phone Screen protectors

Etteri tempered glass 9D for iPhone 18 Duo

Name: Etteri tempered glass 9D for iPhone 18 Duo
Brand: Etteri
SKU: 7026347
Price: 11.99 EUR
Availability: OutOfStock

SKU: 5908067020984

Product no longer available

This product is currently not available from our suppliers.

Material

Glass

Protection

Reliable device protection

Quality

Premium materials

Perfect Fit

Designed for your device

Compatible devices

iPhone 18

Technical Specifications

Supplier-provided features: full-surface adhesive; oleophobic coating; antistatic coating; screen protection
Hardness: 9H
Glass type: Tempered glass