My brand new apple watch has a gray screen and will not do a hard reset.

Hello Teacher_20,

I know when you get a new device, it's always exciting to use. When it's not working, it can be pretty upsetting. I want to do all I can to help you find the answers and support you need.

First, make sure you're connecting and changing your Apple Watch using the charging cable that came in the box with it. Also, did you own an Apple Watch previous to this one? If so, did you restore information from the old Apple Watch to this one?

Looking forward to your reply, I hope you have a good day!

On your paired iPhone.

Open Watch app > My Watch > Accessibility > Greyscale : turn it off here.

To reset an Watch:

Press the digital crown and the Side button together until you see the  logo.