use my android phone or seperately buy an android device

I have samsung S24+ and some older android phones. I used them for gamehub and gameub lite and found all of them generated substantial amount of heat during gameplay. I think it is unavoidable as emulation takes a lot of resources and thus generates large amonut of heat. So I am thnking of buying a seperate android device like the AYN ODIN 3 or Lenovo Y700 gen 4 for emulator because even they may also generate heat, their values are much lower than flagship grade android phones so anything bad happen to them I would not lose as much money. What about fellow gamers who run emulator on android？ do you use the daily drivre andoid phone or a seperate android device?