Note 3(just sold it last week to a friend) and IP6+. those are the most mainstream smartphones so I assume other poster will post the spec. X)
Iphones move to support IOS gaming thanks to the introduction of metal, some games I like are exclusive to IOS and IOS tend to get the game 1st were the main reason why I switched. Getting the 6+ as a xmas gift helped aswell.lol
Metal
https://www.youtube.com/watch?v=RWLlZ5yJ3Y4
Sample of games that were updated to metal
https://www.youtube.com/watch?v=lGedCoIUbJ4
Currently playing
IOS - Knights of the Old Republic, Monster Hunter Freedom HD and Idolmaster Festa.
Steam-NovisNoah, Uplay-Limpanot, Origins-NovisNoah, PSN-NovisNoah, NNID-NovisNoah