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AppleFan91

macrumors 68000
Original poster
Sep 11, 2012
1,813
3,827
Indy, US
so I haven't seen anyone talk about this but I just went through an iOS 9 training for where I work and one of the features listed for the new battery enhancements in iOS 9 is when the phone is face down, it will not light up the screen even when a notification arrives. The phone uses the ambient light sensor for this. I thought it was kinda cool, definitely not ground breaking or new to the industry, but I've not seen that as a talked about feature online either.
 

Krevnik

macrumors 601
Sep 8, 2003
4,101
1,312
I was sad to find out this ONLY works for a face down phone. It doesn't work for phone-in-pocket which would be more effective for battery saving in my case.

If that's true, then it must be using the accelerometer as well. It shouldn't be able to tell the difference between "dark because I'm face down" and "dark because I'm in a pocket" otherwise.
 

gsmornot

macrumors 68040
Sep 29, 2014
3,672
3,853
If that's true, then it must be using the accelerometer as well. It shouldn't be able to tell the difference between "dark because I'm face down" and "dark because I'm in a pocket" otherwise.
I agree. If you're on a call now, you can cover the sensor and turn the screen off just like it does when its next to your face. Phone position is not the deciding factor for calls, its ambient sensor detection. Should be able to tell its covered either face down or in a pocket.
 

steve knight

macrumors 68030
Jan 28, 2009
2,735
7,180
I was sad to find out this ONLY works for a face down phone. It doesn't work for phone-in-pocket which would be more effective for battery saving in my case.
one thing I noticed on my samsung s6 that I wondered why iphone does not have. but I don't have to have it face down it always does it.
 

Zirel

Suspended
Jul 24, 2015
2,196
3,008
I was sad to find out this ONLY works for a face down phone. It doesn't work for phone-in-pocket which would be more effective for battery saving in my case.

I have found exactly the opposite.
 
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