[YotaPhone] Rrreutel:
I've recently bought a set of screen protectors (front & back) which I'm happy with so far. Don't know if it's OK to name brands, but I wouldn't know how to otherwise describe them: I got them from ace-case dot co dot uk. Their site doesn't list YotaPhone2, but they have a set for it. You can find them on eBay too. (I'm not in any way affiliated with them, except for being a customer).

With the limitation of only using them for 2 days, I'll review them here:

Included in the front+back set:

- Front sheet

- Back sheet

- squeegee

- microfiber cloth

Size

The size as delivered was not perfect for neither the front or back sheet (end of may 2015, size may have improved in the meantime). I had to trim them a bit with scissors to prevent it from extending to/beyond the edge of the screen (and thus coming loose easily). For the front I had to slightly trim two corners, for the back I had to trim about 1mm off the bottom.

Material

It's flexible plastic (FWIW: they claim self-healing and use the term 'military grade'). Not sure if it's PVC, but for an impression: it feels similar to the translucent material of the valve of an inflatable swimming band :)

The protectors are very clear (largely invisible, no perceivable change in color or darkening) with a shiny (and reflective) finish. The material is soft to the touch (you could probably make a mark in it with a fingernail), and it provides excellent grip.

Applying

There's a good instruction on their site, basically apply by wetting the sheet in water with a slight drop of mild soap, then sliding into place. Since it's flexible it will easily follow the curves of the back too. It's fairly easy to get rid of most bubbles, any remaining bubbles disappear after a few days. There's some glue on the back of the sheets, it sticks nicely to the back too.

Pro's

- Improves grip tremendously, especially compared to the original smooth and slippery backside, won't slip out of your hands

- clear: does not limit visibility (not counting glare here, only translucency).

- The sharpness and contrast of the backside seems to actually improve a bit, you can see individual pixels better with the protector applied.

- Applies pretty easily and cleanly, all bubbles seem to disappear (unless there's something underneath like a dust particle)

Con's

- Shiny material on the back looks a bit less classy to my taste than the original matte finish. There's nothing wrong with the material itself though, looks OK.

- you lose the feeling of the silky smooth matte backside surface ;)

- size is a bit off: you need to trim to size manually

Tips:

- If a sheet doesn't seem to stick well, verify that you received the right material. It should be slightly sticky on the backside. (I accidentally received one sheet of wrong type of plastic, rigid and without glue, wouldn't stick to the back. They promptly sent me a replacement.)

- They recommend using the plastic squeegee to remove bubbles, I fear that using it directly may actually harm/scratch the protector. I wrapped my squeegee in the supplied microfiber cloth first.

- apply in the bathroom/shower after running the hot water for some time: removes most dust from the air.