In my opinion, the relevant battery statistic is one and one only: screen-on time since last full charge. That’s what most care about.
Okay, so, Settings’ battery section has seen two significant changes: iOS 12, when it changed “usage time since last full charge” to “screen-on time in last 24 hours”.
The issue before iOS 12 was that usage time included everything: screen-on time, screen-off time like music, and system activations on standby. That meant that the usage time that appeared was oftentimes inflated: a heavy music listener could have, on an iPhone 6s, 8 hours of “usage time” with 50% remaining, and getting 8 hours of SOT on an iPhone 6s is impossible.
iOS 12 fixed that, adding screen-on time. But it has one large flaw: to obtain the relevant number, you have to add the individual bars after unplugging, because the “screen-on” number shows the last 24 hours’ SOT. Which brings about an issue: if your cycle lasts more than 24 hours, you have to manually track the SOT before it disappears.
iOS 26 obliterates everything. This is iOS 12 on my iPhone Xʀ:
Obtaining SOT is very easy: unplug time: 16:00. Add individual bars from 16:00 to the point when the screenshot was taken. You can estimate remaining battery from the upper segment (because iOS 12 doesn’t have a battery percentage). The result is 2h 45 minutes of Screen-on time from 100% to the current 91% remaining. Note that SOT of the current cycle is NOT the 3h 34 min that appears below, as that includes SOT from the previous cycle.
iOS 26 destroys everything. These are MacRumors’ screenshots:
As you can clearly see, now the upper section of the screen shows battery consumption since 00:00. The bottom segment of the screen shows... battery level (so, remaining battery percentage, NOT screen-on time) per hour. The SOT number is now presumably the SOT accumulated over the present day since 00:00.
But there is NO indication of partial screen-on time. The only SOT indicator is the full 00:00-current time, so we can no longer determine screen-on time since last full charge. Before we had to add it manually, but now we can’t even do that.
A hypothetical: I plug my phone in after using it until 2am. I unplug it at 7 am. I plug it back in at 8 pm after using it. The SOT number 00:00-23:59 would show SOT from THREE different cycles: the end of the first cycle (00:00-02:00), the whole-day cycle (07:00-20:00), and the usage that I add while charging (20:00-23:59), with NO possibility to ascertain SOT per cycle.
How is this change useful? It destroys battery statistics for no reason!
Okay, so, Settings’ battery section has seen two significant changes: iOS 12, when it changed “usage time since last full charge” to “screen-on time in last 24 hours”.
The issue before iOS 12 was that usage time included everything: screen-on time, screen-off time like music, and system activations on standby. That meant that the usage time that appeared was oftentimes inflated: a heavy music listener could have, on an iPhone 6s, 8 hours of “usage time” with 50% remaining, and getting 8 hours of SOT on an iPhone 6s is impossible.
iOS 12 fixed that, adding screen-on time. But it has one large flaw: to obtain the relevant number, you have to add the individual bars after unplugging, because the “screen-on” number shows the last 24 hours’ SOT. Which brings about an issue: if your cycle lasts more than 24 hours, you have to manually track the SOT before it disappears.
iOS 26 obliterates everything. This is iOS 12 on my iPhone Xʀ:
Obtaining SOT is very easy: unplug time: 16:00. Add individual bars from 16:00 to the point when the screenshot was taken. You can estimate remaining battery from the upper segment (because iOS 12 doesn’t have a battery percentage). The result is 2h 45 minutes of Screen-on time from 100% to the current 91% remaining. Note that SOT of the current cycle is NOT the 3h 34 min that appears below, as that includes SOT from the previous cycle.
iOS 26 destroys everything. These are MacRumors’ screenshots:
As you can clearly see, now the upper section of the screen shows battery consumption since 00:00. The bottom segment of the screen shows... battery level (so, remaining battery percentage, NOT screen-on time) per hour. The SOT number is now presumably the SOT accumulated over the present day since 00:00.
But there is NO indication of partial screen-on time. The only SOT indicator is the full 00:00-current time, so we can no longer determine screen-on time since last full charge. Before we had to add it manually, but now we can’t even do that.
A hypothetical: I plug my phone in after using it until 2am. I unplug it at 7 am. I plug it back in at 8 pm after using it. The SOT number 00:00-23:59 would show SOT from THREE different cycles: the end of the first cycle (00:00-02:00), the whole-day cycle (07:00-20:00), and the usage that I add while charging (20:00-23:59), with NO possibility to ascertain SOT per cycle.
How is this change useful? It destroys battery statistics for no reason!