Sony Xperia 非旗艦手機的機種，例如XA1 Plus，雖然內建有 PlayStation App ，但是沒有 PS4 遙控遊玩的功能，如果你因為 PS4 遙控遊玩，想買 Xperia 非旗艦機種，建議直接買 Xperia 當年度旗艦機。

Sony Xperia’s annual non-ultimate smart-phones, for example XA1 Plus, have no PS4 remote-play function in built-in PlayStation app. If you want to buy a cheap phone of Xperia for enjoying PS4 remote-play, I suggest you increase your budget to buy their annual ultimate one.