.. is called ‘Android’.
In IT we used to forget how many ‘double standards’ we use, compared to other technology achievements.
How many times do we read in a car test – as an example – that it runs and reacts smoothly when we use it? It is a basic expectation: a car must run smoothly.
But in any Android-based device tests/reviews I read (even in 2013): ‘no lagging’ or ‘minimal lagging’.
In my opinion the difference between Apple and Samsung products is it that although none of them makes reliable hardware, Apple at least has a reliable mobile OS.