I don't actually mind being on a small screen since I am just doing free faucet satoshi bets in a dice game. I think I will be using a Desktop PC (if I have one) or a laptop maybe if I am betting the same as the OP, in roulette of my favorite game or favorite movie with full-on visual effects that would really captivate my every bet and every rolls.
This depends on what you are doing though.
Some people do some works and in their chrome tabs, they are doing either scrolling through their news feed or doing some auto-bets in a dice site or other gambling games. Also, they can use both since they will not always be in their houses.
I think some of the devices today are using smartphones and tablets because they know it is more convenient and it is more lightweight so you can bring anywhere in your house. Op is looking for a good device for online gambling and I think it is quite needed because you can use now the website version of the gambling casino that we can play also if you want to adopt the use of the mobile version we have the responsive pages so it is more convenient to play. If you want a larger screen you can use a tablet or laptop but there's more if you want to make more excitement you can use the cast screen so from your phone, tablet, or computer you can now link into your smart tv with higher more resolution and intense gambling experience.