I strongly agree with
@Rodney Olson, the hardware capabilities or specifications will dictate your smartphone's performance
. Specially on the speed and efficiency aspect.
Let me go deeper
!
What if we have 2 different smartphone brands with exactly the same hardware specifications. With the equal latest operating system available.
Now, which performs better?
@LoloyCabiling is asking about the "overall performance" of a smartphone and pertaining about a operating system as a criteria . Well operating systems can affect the performance of a smartphone, but its not that significant. Operating systems are a digital integrated systems..basically they are programs. The difference? its how the developer executes the program using algorithmic / mathematical programming strategies. Basically they all have the same function but different approach on how to execute them..
A more simple example is your smartphones browser. Have you ever tried switching browsers because one is faster than the other, but you are using the same smartphone!
It is because every browser have different strategies on how to execute a algorithmic / mathematical tasks.
My point is every aspect of the smartphones physical specification and digital capability affects the overall performance of a smartphone.
But the hardware specification of a smartphone is significant in performance because it has a fix and measurable properties.
I hope this helps
....