You mean subjectively?
Z3C beats 5S in almost every aspect
Battery life is wonderfull
Some users showed their battery life stats, there are over 12 days without charging it
12 days and still 35% remains
(very light use)
In my case, with moderate use, i only charge twice per week (every 4 days only)
Could your 5S do that?
Oh wait, you must charge it every night
Under standard battery life measurements (same nits, same performance; not brightness percentage and percentage of CPU) the 5s is right up there in the top devices (wifi browsing battery life and so on).
And iOS devices use almost nothing if not in use and with everything disabled, like what you mentioned.
The z3c might still be better, but is it worthy the money and what you lose? (speed, support, iOS).
to each is own, but you will easily findout out that almost nobody will go from an 5s to an android device, no matter what.