The iPhone 15 Pro Max has gained over an hour of additional battery life thanks to the latest iOS 18 update. This improvement was demonstrated in a battery test conducted by Chinese tech blogger Geekerwan, highlighting a significant advancement compared to iOS 17.

iOS 18 optimizes the performance and efficiency of the A17 Pro chip, significantly reducing power consumption. As a result, the battery life of the iPhone 15 Pro Max has increased from 7 hours and 56 minutes to 9 hours and 2 minutes.

Battery Performance Compared to the iPhone 16 Series

The iPhone 16 series has set new standards in battery performance, outpacing its predecessors. According to Geekerwan’s battery test, the iPhone 16 Pro Max recorded an impressive 10 hours and 23 minutes of battery life, far exceeding the iPhone 15 Pro Max’s 9 hours and 2 minutes. This difference is not just due to newer hardware but also the optimizations in iOS 18.

The iPhone 16 Plus also boasts a 10-hour battery life, placing the entire iPhone 16 series at the forefront of the industry. The iPhone 16 Pro and iPhone 16 each recorded over 8.5 hours of battery life, significantly outperforming previous models. These results set a new benchmark for battery performance in the smartphone market.

For iPhone 15 users, these figures may be a compelling reason to consider upgrading, especially if battery life is a key factor in daily use.

Major Battery Life Improvements from iOS 18

The iPhone 15 series has seen significant battery life improvements with the iOS 18 update. Specifically, the iPhone 15 Pro Max’s battery life has increased by over an hour compared to its performance on iOS 17. According to Geekerwan’s tests, battery life increased from 7 hours and 56 minutes on iOS 17 to 9 hours and 2 minutes on iOS 18.

This improvement is especially noteworthy because it was achieved purely through a system update. Users can enjoy longer battery life without changing any hardware—simply by installing iOS 18 for free. The iPhone 15 Pro also saw its battery life improve from 6 hours and 22 minutes to 6 hours and 55 minutes, showcasing the benefits of iOS 18 across the entire series.

These improvements are largely thanks to Apple’s introduction of advanced power management features in iOS 18, which benefit users who engage in long-term activities on their devices.

A17 Pro Chip and iOS 18’s New Resource Management Technology

The boost in battery life with iOS 18 is closely tied to the A17 Pro chip’s new resource management technology. This technology enhances both performance and efficiency, reducing power consumption while maintaining overall system performance. iOS 18 delays the increase in processor core frequency, minimizing unnecessary power usage during short tasks.

Thanks to this new resource management approach, the iPhone 15 Pro Max’s battery life has been extended by over an hour, and users will notice the impact in real-world scenarios. When launching the iPhone 16, Apple emphasized how “advanced power management” plays a significant role in extending battery life, and the results clearly reflect that.

While this technology may slightly lower benchmark scores, it does not affect daily performance, allowing users to enjoy longer battery life without sacrificing speed or responsiveness.

Should You Consider the iPhone 16 Pro Max for Even Better Battery Life?

While the iPhone 15 Pro Max’s battery life has been greatly improved by iOS 18, it still falls short of the iPhone 16 Pro Max. Geekerwan’s tests show that the iPhone 16 Pro Max achieved an incredible 10 hours and 23 minutes of battery life, surpassing the iPhone 15 Pro Max by more than 1.5 hours. For users who prioritize long battery life, this difference could be a deciding factor.

The superior battery life of the iPhone 16 Pro Max is not only due to iOS 18’s optimizations but also its new hardware. It incorporates a power-efficient processor and enhanced energy management features, reducing battery consumption even further. Additionally, the display’s power-saving technology also contributes to the overall battery performance.

For users seeking maximum battery life, the iPhone 16 Pro Max stands out as an ideal choice. With its cutting-edge hardware and optimized software, it’s a highly attractive option for those who rely on long-lasting battery power.