The worst... doesn't apply well, creates bubbles no matter what you do... it blurs the image too much and it's annoying, I would say. Unacceptable product, try something else.

It is exactly what the word Hybrid implies, don't expect glass, but otherwise good and quality for its price, just what it should be!

Let me also say that indeed it is not glass, I don't know to what extent this "plastic" can protect the screen from impact with metal or any hard surface. It probably protects it from scratches though.
It definitely diminishes the aesthetics of the watch screen, you will also need to increase the brightness since it limits it, the issue with the bubbles is also important since they don't go away in any way, however the screen sensitivity had no issues.
I hope I helped with my evaluation and I would advise you to go for real glass but obviously I wouldn't pay 40 euros for a brand name ;)

I don't think it's glass... it looks like plastic to me. However, it doesn't affect sensitivity when it comes to touch, but it attracts fingerprints...