The iPhone has had a Power Reserve function that holds back a small amount of battery life to allow features like Find My and NFC unlocking to work even when your device has died, and in iOS 18, Apple seems to be improving the feature further for the iPhone 15 models.
As demonstrated on Reddit, when the battery on an iPhone running iOS 18 is exhausted, the phone can continue to show the time in the upper left corner of the device, which is a small but useful upgrade. The battery icon still shows up, and you'll see "iPhone is Findable" while reserve battery is left.
It appears that this feature is limited to the iPhone 15 models. We tested on an iPhone 14 Pro Max and were not ale to get the time to show up, but it did work as expected with an iPhone 15 Pro Max.
Power Reserve has been a feature on iPhones dating back to the iPhone XR and iPhone XS, so it's not clear what the limiting factor is in terms of showing the time on display when the battery has drained on older devices.
Apple has yet to reveal when the iPhone 18 Pro and iPhone Ultra will be announced and released, but the dates usually follow a familiar pattern.
Labor Day is September 7 this year. The last time the holiday fell on that day was in 2020, but the iPhone event that year was delayed until October due to the COVID-19 pandemic. So, the last time Labor Day was on September 7 in a normal year was in ...
Wednesday July 29, 2026 11:39 am PDT by Joe Rossignol
Apple is developing an all-new operating system that is essentially a mix of tvOS, watchOS, and iOS, according to Bloomberg's Mark Gurman.
In a report this week, he said the operating system will feature a grid of icons, widgets, and apps, along with customizable clock faces.
The new software platform is intended for Apple's long-rumored smart home hub. With built-in facial recognition,...
Thursday July 30, 2026 3:43 am PDT by Tim Hardwick
We're less than two months out from the launch of Apple's premium next-generation smartphone lineup, and while we're not expecting a dramatic change in terms of functionality, there are still several enhancements rumored to be coming to the iPhone 18 Pro and iPhone 18 Pro Max.
One thing worth noting is that Apple is reportedly planning a major change to its iPhone release cycle this year,...
Because iPhone sales have been slowing down and people are keeping their iPhones longer and longer, Apple is becoming more and more aggressive in creating artificial restrictions to get users to upgrade - this is a classic example. The author even pointed this out in their article - "Power Reserve has been a feature on iPhones dating back to the iPhone XR and iPhone XS, so it's not clear what the limiting factor is in terms of showing the time on display when the battery has drained on older devices."
If you want further proof, look no further than these examples:
* Adaptive Charging limit ('https://www.macrumors.com/2024/06/12/ios-18-charging-limit-recommendations/') * Additional charging limit options ('https://www.macrumors.com/2024/06/10/ios-18-introduces-more-charging-limits/') * Apple Intelligence compatibility is restricted to iPhone 15 Pro and later (however, this also could be due to the increased RAM that are in these devices)
Maybe the reason none of the prior iPhone models have this exclusive to iPhone 15 series feature is because none of them have A16 chip6GB RAMDynamic Island USB-C port that's needed to enable the feature? 🤷♂️
Because iPhone sales have been slowing down and people are keeping their iPhones longer and longer, Apple is becoming more and more aggressive in creating artificial restrictions to get users to upgrade - this is a classic example. The author even pointed this out in their article - "Power Reserve has been a feature on iPhones dating back to the iPhone XR and iPhone XS, so it's not clear what the limiting factor is in terms of showing the time on display when the battery has drained on older devices."
If you want further proof, look no further than these examples:
* Adaptive Charging limit ('https://www.macrumors.com/2024/06/12/ios-18-charging-limit-recommendations/') * Additional charging limit options ('https://www.macrumors.com/2024/06/10/ios-18-introduces-more-charging-limits/') * Apple Intelligence compatibility is restricted to iPhone 15 Pro and later (however, this also could be due to the increased RAM that are in these devices)
Apple's first foldable iPhone, with a book-style design featuring a ~5.5-inch outer display and a ~7.8-inch inner display with a minimal crease down the middle.
