Difference Netflix?

Is there a difference between the 2nd variant and the 3rd variant on Netflix, of course with the 3rd one can stremane on several devices, but is there another difference?

Yes, the resolution.

The difference between the models is usually in the resolution, e.g. 4K content and how many devices are "legally" allowed to watch.

But it says on the homepage - take a look at it.

So is the quality better?

"Yes" but that is a high level. If your TV doesn't even play 4K, so many times Full HD then it's for the cat.

Normal HD is enough

Thank-you