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?

>>3
Pretty cute, screen (& probably buttons) too small to buy for parents though. Could do with a bit more battery and easy-vis display.

>>4
Not too sure about the locked in MIUI / phablet form factor / finger-print scanner?