Does True Tone save battery or use up more battery?

Benz63amg

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Original poster
Oct 17, 2010
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Does having True Tone enabled on the iPhone X improve and save overall battery life making the screen be more efficient or does it do the opposite and use up more battery because it always needs to monitor the surroundings and adjust the screen’s when balance .
 

blairian89

macrumors 6502
Dec 5, 2016
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Texas
When going into Low Power mode, True Tone stays on. I imagine that it doesn’t use much power.

However, since it uses a sensor to detect the ambient light levels, I imagine that it uses some minuscule amount of power.
 
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Benz63amg

macrumors 68030
Original poster
Oct 17, 2010
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Yes I agree, I assume that in terms of the True Tone sensor being active and enabled at all times (to determine what changes True Tone needs to make to the screen as the environment changes might use more battery but since it’s displaying a different type of “White” which is considered “yellow” by many people that are not used to True Tone, does having that warmer shade of white due to True Tone being enabled use less or more battery life as opposed to having True Tone off?


In a technical sense, does displaying the warmer tones demand more from the screen and battery or does displaying the cooler temp whites (such as with True Tone off) use more battery and power?
 
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blairian89

macrumors 6502
Dec 5, 2016
380
234
Texas
I’d like to know the answer to this too
When going into Low Power mode, True Tone stays on. I imagine that it doesn’t use much power.

However, since it uses a sensor to detect the ambient light levels, I imagine that it uses some minuscule amount of power.
 

jonathanbruck

macrumors newbie
Oct 27, 2007
13
6
Does having True Tone enabled on the iPhone X improve and save overall battery life making the screen be more efficient or does it do the opposite and use up more battery because it always needs to monitor the surroundings and adjust the screen’s when balance .
According to Apple, when they conduct their run-time tests, they turn off some features, including true tone, so it stands to reason that if they felt the need to turn it off for their test, you should turn it off to maximize battery life.

https://www.apple.com/iphone/battery.html
 

now i see it

macrumors 601
Jan 2, 2002
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Probably activating the lock screen just once to see if you got a message uses more power than keeping True Tone on all day.