Looking for advice on device to play TSM

Thanks, the thing is my anniversary is coming up and i cant justify to my hubby getting s new tablet when mine still works fine (iPad Air). We were also talking on upgrading our phones as a joint anniversary gift so, it might be easier on talking him into that instead but we dont have the budget to splurge on the latest gen on phones so that’s why I was thinking on iPhone 7 which at least the screen is a bit bigger than my current phone. This has to be decided by this weekend since we will getting the joint gift this weekend. So that’s why I am looking st all possible recommendations :)