OK, I'm returning with some observations of mine after not a single full day of using iPhone SE 128 GB. Applying a screenshot (the second one) of the batter preferences with, presumably, "detailed" breakdown of power consumption. For starters, the phone IMEI checked on
https://iunlocker.net. I'm not sure about the legitimacy of the site but it returned the following data:
View attachment 822902
This appears to be OK and matches the model and the support status I've been informed of by the seller. I think the phone was in a very light use because the box was unsealed and it has iLife/iWork apps installed. Not sure how bad is that and what to think. Other than that - perfect condition.
Now on to the main topic. Here's the screenshot of the power consumption statistics after 1 h 10 min of the reported active usage:
View attachment 822906
I enabled location services,iCloud, kept iCloud Drive, Siri disabled. I refrained from updating it to 12.1.4. I also
turned on Power Saving. I set the brightness to 40-50% as well as Night Mode and Do Not Disturb. I charged it to the hilt, used a bit (opened apps, tested the behavior), let it slip to 99% before I went to bed.
Awoke after 6 h to discover the charge at 91% (or 94% - can't remember but my heart speaks in favor of the former number). As I resumed playing with settings and apps, messaging my contacts, I noticed I had left plenty apps open because the way multitasking works is not pretty obvious in iOS so I had to waste my time finding out how to use it. I also noted the staggering 1% loss
per half an hour of usage. I then quitted these apps except of Messages. The percentage on the screenshot is by the time I closed other apps and also disabled Location Tracking while using the phone. What is striking about these statistics is that Messages contributes most to the draining. I feel unrest. How do you do without the most actively used app? That's insane.
[doublepost=1550770432][/doublepost]To add, I had an Android old Xperia V and can state with certainty that the battery drain occurred at slower pace when brand new.
As of now which is 1 of my original post the battery is at 84%