Need help on whether to buy the 9A or 10A

Hello there, I just want a phone that'll last 5-6 years, not have issues with the battery, doesn't heat up, good natural-looking cameras and performance that will actually last me that long.

I am a power user but other than a few AAA titles on medium settings I will probably not play any heavy games. Heating is a red flag for me.

I also would appreciate AI features like AI screenshot but they are apparently not on the 9A.

Am wondering whether the 10A or 9A or neither are good for me.

Thanks!