Spec Req for cellphones

Any thoughts on min/max specifications for a roughly decent quality cellphone by '16 standards?

How many cores should it have? Is 512 mb ram too little? How much ram is too much on a smartphone? Other spec req?

>>10
Because of all the memory leaks in Android, the more memory it has, the longer it can go without restarting.

>>15
The problem is apps restarting because of OOM, losing unsaved work or dropping remote sessions simply because you switch between two apps.