I haven't bought a matte screen protector for a very long time, but...
Matte, AG(Anti-Glare), AR (Anti-Reflection), non-glare, non-glossy types of films are there.
When I choose my screen protector for my iPad mini / XPERIA (smartphone) I like to use the glass screen protector that uses glass from a Japanese glass maker. They can be found relatively cheap on Amazon etc.
Maybe these might be good for your OneMix? (This one is for OneMix 2s)
What really saved my XPERIA one time was the glass screen protector. I dropped my XPERIA a few feet on top of the floor, but no damage to screen whatsoever.
The thing is the glass types can make the touch screen experience a little different...
Edited by stingraze 2020-02-17 9:24 PM