I have trouble viewing the apps and clock face when the watch dims in the dark. Can i turn off night mode on ultra 2 watch

On your current watch face click and hold that face to get into edit mode, click edit, swipe left or right until you see Night Mode at the top of the screen, turn the Digital Crown to put night mode in the off position. You have 3 different modes to choose from, (Off, On Auto) at the bottom of the green edit border around the watch face.

What I outlined will keep the display from auto dimming in low light. That’s how you turn off the auto dimming. I just did it to my Ultra yesterday for the same reason. If you want the display to be brighter then go to the display/brightness setting under the settings menu and you can turn the screen brightness to max.

Glad to help.