Veter-63 @ 07/05/17, 12:26
Meise and the Chinese are different, and this is for starters. I personally sat for several years on flagships from lenovo, meiza and zte and here's what I will say - I did not notice such problems with discharge.
Usually, the Chinese out of the box use process killers / sleepers and notification cutters, due to this they improve autonomy, but worsen the work of some programs. Samsung (and other A-brands), by default, focuses on functionality and constant communication with the outside world, assuming that sockets are now everywhere :).
This is all from personal experience with different phones and firmware.