I am disappointed that your questions have not been answered, can you tell me the dimensions of the board and the size of the squares? I have hand tremors and I am concerned this will not work for me.
ChessUp initial thoughts

I am disappointed that your questions have not been answered, can you tell me the dimensions of the board and the size of the squares? I have hand tremors and I am concerned this will not work for me.
Each square is 1 1/2" to a side. The board, as mentioned above, has a total size of about 15 3/4" x 14" and the area for only the playable squares is 12" x 12". The pieces are not weighted if that is a concern of yours regarding the hand tremors. On the plus side, this board is the best for not freezing if pieces are knocked over and then righted.
Finally !!!
Bik's "Chess for Android" for the ChessUp:
https://play.google.com/store/apps/details?id=com.google.android.chess&hl=en
thanks guys, I bought a chessnut air a couple of hours before your post, thanks, I will let you know how it works out.

@1uplifts - Not sure how much you want to pay, but the base board is on sale right now for $299US and if you use a discount code it take another $29.90US off, bring the board total to $269.10US.
@1uplifts
Take a peek on "Leboncoin"
https://cbcc95.forumactif.org/t432p175-leboncoin-ventes-d-echecs-electroniques
Wow, that's great @cosmoKJ, I like the ChessUp very much
I got some questions:
1) Are Lichess tournaments (such as "LoneWolf") supported ?
2) Is it possible to set up any position on the board in order to analyze it or play it against the ChessUp AI ?
3) Are external UCI/WinBoard/XBoard chess engines supported ?
Thanks and keep up the good work on the ChessUp