Huawei Watch 2 or GT?

I'm considering soon a smartwatch from the house Huawei zuzulegen. Now I wonder what is better, the Huawei Watch 2 or the GT? I've already researched the internet but could not find any real differences except the display size. And that's pretty funny at the price difference.

That's why I ask here so what are the most striking differences and what experiences you have made with the clocks.

The Gt has its own operating system and a faster processor and the battery should last longer

But what justifies the high price difference? I mean the GT is almost 200 Fr. Cheaper!

This is simply because the GT is not a real smartwatch and rather a fitness watch or tracker is doing his job well and done.