I own the Chessnut Air+. It has the same functionality as the Chessnut Go. I don't own the ChessUp 2 so I can't compare it's functionality.
I'm like you and I don't like to stare at a screen. The Chessnut Go is probably the cheapest e-board you can buy that gives you access to the best features on Chesscom.
In addition to playing Live Games and Bot Games, I also use my Chessnut to analyze my games using the Chesscom Game Review and Analysis feature. Also I use my Chessnut Board to manually record Games from chess books and from watching interesting chess videos I see on the internet. I then save them to the Chesscom Library so I can replay them OTB on my Chessnut Air+.
thank you in advance and sorry if my english is bad english isn’t my first language