My Apple Watch has a fuzzy screen

Reset the Apple Watch by pressing and holding both the side button and Digital Crown together for about 15 seconds until the Apple logo appears.

If that doesn’t solve it:

Apple Watch Service & Repair - Apple Support

This worked for me. My time screen was fine, but all other screens were blurry and non responsive. Everything is back to normal after the reset.

Tinaemmo wrote:

I’ve done that already a few times

Apparently you have not as it sounds like you have not pursued the repair option.

Great. Enjoy your Apple Watch.