Is it necessarily to use screen protector for iphone 8? And is “nanofixit scratch remover” ok to use for iphone 8 to remove hairline scratches?

Having a screen protector on your iPhone is a personal choice. I would think it would depend on what environment you intend to use your phone in to know, whether or not, it would be worth it.

As far as using "nanofix scratch remover" I would say no. Apple only recommends using a damp lint-free cloth using water.

How to clean your Apple products - Apple Support

Hi

I use a screen proctor for 8 plus & a double sided Leather case.

I would not use a scratch remover it may damage screen.

Cheers

Brian 🇬-1F1E7;