![Extreme test shows OLED iPhone X with 'dark mode' saves nearly 60% battery over 3 hours | AppleInsider Extreme test shows OLED iPhone X with 'dark mode' saves nearly 60% battery over 3 hours | AppleInsider](https://photos5.appleinsider.com/gallery/23639-30053-IMG_0032-3-xl.jpg)
Extreme test shows OLED iPhone X with 'dark mode' saves nearly 60% battery over 3 hours | AppleInsider
![iPhone 13 and iPhone 13 Pro battery test shows just how much ProMotion improves efficiency [Video] - 9to5Mac iPhone 13 and iPhone 13 Pro battery test shows just how much ProMotion improves efficiency [Video] - 9to5Mac](https://9to5mac.com/wp-content/uploads/sites/6/2021/10/iphone-13-vs-13-pro-battery-life-video.jpg?quality=82&strip=all)
iPhone 13 and iPhone 13 Pro battery test shows just how much ProMotion improves efficiency [Video] - 9to5Mac
![Activating Dark Mode on iPhone could increase battery life up to 30%, a new experiment has found | Daily Mail Online Activating Dark Mode on iPhone could increase battery life up to 30%, a new experiment has found | Daily Mail Online](https://i.dailymail.co.uk/1s/2019/10/21/21/20006872-7597897-image-a-73_1571689318873.jpg)
Activating Dark Mode on iPhone could increase battery life up to 30%, a new experiment has found | Daily Mail Online
![iOS 13 dark mode: New iPhone software update's biggest feature revealed in leaked screenshots | The Independent | The Independent iOS 13 dark mode: New iPhone software update's biggest feature revealed in leaked screenshots | The Independent | The Independent](https://static.independent.co.uk/s3fs-public/thumbnails/image/2019/05/29/16/iphone.jpg?quality=75&width=982&height=726&auto=webp)