- 1 hour ago (Updated 1 hour ago)
- Corentin Ruffin
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Officially introduced in iOS 13, the Dark Mode feature was eagerly awaited by iPhone and iPad users. Indeed, this option allows “to optimize visual comfort in low light conditions”, but also, on paper, to gain autonomy.
However, researchers at Purdue University have just published the results of their study on the subject, and it seems that dark mode does not provide the desired battery economy.
Dark mode: not so effective for autonomy?
A team of researchers from Purdue University in the United States has just published the results of its study on dark mode on smartphones and the potential gain in autonomy. To do this, they developed “a new patent-pending power modeling technology that they invented to more accurately estimate the power consumption of OLED phone screens.”
The results don’t favor the tech, since a device with 30% to 50% brightness will only gain 3% to 9% energy when going into dark mode. On the other hand, if the brightness is at its maximum, setting up dark mode will save you 39% to 47% of energy.
In other words, the more you use your device with high brightness, the greater the gain in autonomy will be: logical …
Tests done in the past to compare the effects of light mode with dark mode on battery life have treated the phone like a black box, grouping the OLED screen together with the other components of the phone. Our tool can accurately isolate the discharge portion of the battery by the OLED screen.
Personally, dark mode is for my eyes, not for autonomy …
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