Do screen protectors affect display quality?

Good tempered glass protectors transmit 99%+ of light and add less than 1ms of touch latency. You cannot see or feel the difference from bare screen. Cheap protectors with poor coatings can reduce clarity and introduce rainbow effects. Stick to reputable brands like Spigen, amFilm, or Whitestone.

Will a screen protector work with my phone case?

Yes, if the protector is designed for your specific phone model. Case-compatible protectors are slightly smaller than the screen edge to prevent lifting when a case is applied. Always check that the protector lists your exact phone model and mentions case compatibility.

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