the various smartphone with an app that simulates daily activities, it appeared that iPhone X may work for 8 hours and 41 before needing a refill, just over Samsung Galaxy S 8 + (stopped in 8 hours) and Samsung Galaxy Note 8 (still in 7 hours and 50). Result 8 Plus 10 monstre iPhone landed in hours and 35 minutes.

Here are the results in the appropriate chart:

The site also took into analysis charging times of the various smart phones, using for iPhone Apple-provided cable X