iOS 13's Dark Mode Extends OLED iPhone Battery Life, Test Confirms
When Dark Mode was marketed as a headline feature in iOS 13, Apple promoted it as an alternative new look that was easier on the eyes when viewed in dark environments. Oddly though, Apple never mentioned that it also potentially offers energy-saving benefits – particularly for OLED iPhones, since pixels on an OLED panel are individually powered and true black pixels remain inactive.
That potential battery saving has now been put to the test. In an experiment shared on YouTube,
PhoneBuff used robotic arms to interact with two fully charged iPhones running iOS 13, with one running in Dark Mode and the other in Light mode. The robots worked their way through various native and third-party apps, all of which support both iOS display modes, until the iPhones died.
The results are pretty conclusive: The test found that an iPhone XS Max using Dark Mode uses up significantly less battery than an iPhone XS Max using Light Mode. When the Light Mode-enabled iPhone XS Max died, the Dark Mode iPhone XS Max still had 30 percent battery life remaining.
PhoneBuff notes one important variable in his test that conditioned the results: The iPhones both had their displays set to 200 nits brightness. At 100 nits, which is what you'd expect indoors, two hours on Twitter saved just 5 percent more battery in Dark Mode. The same test performed at 300 nits, which is closer to outdoors use, saw Dark Mode save 12 percent battery.
Either way, the test appears to prove that Dark Mode is a significant battery saver for OLED iPhones, which include the iPhone X, iPhone XS, and iPhone 11 Pro, but not the iPhone XR or iPhone 11. You can watch the video embedded above for the full lowdown.
Popular Stories
Apple today updated its trade-in values for select iPhone, iPad, Mac, and Apple Watch models. Trade-ins can be completed on Apple's website, or at an Apple Store.
The charts below provide an overview of Apple's current and previous trade-in values in the U.S., according to its website. Maximum values for most devices either decreased or saw no change, but the iPad Air received a slight bump.
...
The smarter, more capable version of Siri that Apple is developing will be powered by Google Gemini, reports Bloomberg. Apple will pay Google approximately $1 billion per year for a 1.2 trillion parameter artificial intelligence model that was developed by Google.
For context, parameters are a measure of how a model understands and responds to queries. More parameters generally means more...
Apple is promoting the new Liquid Glass design in iOS 26, showing off the ways that third-party developers are embracing the aesthetic in their apps. On its developer website, Apple is featuring a visual gallery that demonstrates how "teams of all sizes" are creating Liquid Glass experiences.
The gallery features examples of Liquid Glass in apps for iPhone, iPad, Apple Watch, and Mac. Apple...
Following more than a month of beta testing, Apple released iOS 26.1 on Monday, November 3. The update includes a handful of new features and changes, including the ability to adjust the look of Liquid Glass and more.
Below, we outline iOS 26.1's key new features.
Liquid Glass Toggle
iOS 26.1 lets you choose your preferred look for Liquid Glass.
In the Settings app, under Display...
Apple's online store in the U.S. is suddenly offering a pack of four AirTags for just $29, which is the same price as a single AirTag.
This is likely a pricing error, and it is unclear if orders will be fulfilled. Apple has not discounted the AirTag four-pack in any other countries that we checked.
Delivery estimates are already pushing into late November to early December, suggesting...
Apple in iOS 26.2 will disable automatic Wi-Fi network syncing between iPhone and Apple Watch in the European Union to comply with the bloc's regulations, suggests a new report.
Normally, when an iPhone connects to a new Wi-Fi network, it automatically shares the network credentials with the paired Apple Watch. This allows the watch to connect to the same network independently – for...
IKEA today announced the upcoming launch of 21 new Matter-compatible smart home products that will be able to interface with HomeKit and the Apple Home app. There are sensors, lights, and control options, all of which will be reasonably priced. Some of the products are new, while some are updates to existing lines that IKEA previously offered.
There are a series of new smart bulbs that are...
It's been over a decade since Apple's HomeKit smart home platform launched, and it is overdue for an update. HomeKit and the Home app can no longer keep up with AI-powered solutions from other companies like Google and Amazon, but that's set to change with a smart home revamp that Apple has planned for 2026.
Home Hub
Apple is working on a home hub or "command center" that will serve as a...
