iPhone X iPhone X battery drained by Apple Watch

[labroste]

As you can see my iPhone X loses every night about 40% of battery only when is connected to Apple Watch S4 44mm. It doesn’t matter if the Apple Watch is charging or not. I tried a reset from new in both and still get this. Anybody has any ideas?

 

[0906742]

Are you sure Apple Watch is causing that and battery itself is not just self discharging? You could test one night with bluetooth off to make sure (do it in menu instead of swipe down to make sure it is cut completely). I've witnessed myself big difference between battery life in two new units manufactured in different locations (I even change bad one once without much improvement (new one from the same factory)).

 

[labroste]

I´ve tested with the bluetooth off and the iPhone drained 10%. Must be some bug, because losing 40% when the Apple Watch is charging is not normal, my only concern is that nobody seems to have this problem...
[doublepost=1547039821][/doublepost]On the other hand the battery on Apple watch is still at 100% after 4 hours on my wrist ¯\_(ツ)_/¯