My Apple Watch doesn’t update

What exactly happens when you try to update? What instructions are you following exactly?

What model of Apple watch do you have? Is it the Series 4 in your tag line?

What version of watchOS is your watch running? Is it the watchOS 5 in your tagline?

Are you following these steps?: Update your Apple Watch - Apple Support

Questions:

1. Which iPhone model do you have?
2. Running which iOS version?
3. Which Watch Series do you have?
4. Running which watchOS version?

I don't see any software updates for your device.