**iPhone 17 Pro Max Outlasts Samsung Galaxy S25 Ultra in Battery Test**

*By Akash Pandey | Sept 21, 2025, 04:01 pm*

Apple’s latest flagship, the iPhone 17 Pro Max, has emerged as the longest-lasting smartphone in a recent battery life test conducted by popular tech YouTuber Mrwhosetheboss. The device impressed with a runtime of 13 hours in a simulated daily-use scenario, surpassing Samsung’s Galaxy S25 Ultra, which managed just under 12 hours.

**The Test Scenario**

The battery test simulated typical daily activities including scrolling through TikTok and X, sending Slack messages, listening to Spotify, and recording videos. This comprehensive approach aimed to replicate real-world smartphone usage, providing a more accurate measure of battery endurance.

**Test Details**

The test was conducted on the UK variant of the iPhone 17 Pro Max, which features a physical SIM tray. It’s worth noting that the eSIM-only model sold in the US and other regions comes with a slightly larger battery, suggesting it could last at least an additional half hour longer in similar conditions.

Beyond the Pro Max, Apple’s entire iPhone 17 series showed strong battery performance. For instance, the iPhone 17 Air lasted 7 hours and 18 minutes before powering down, highlighting consistent improvements across the lineup.

**Performance Compared to Previous Models**

Interestingly, the previous-generation iPhone 16 Pro Max, released in 2024, also outperformed Samsung’s current flagship in the same test, running for 12 hours and 15 minutes. This indicates that Apple’s refinements over the past year have contributed an additional one to two hours of battery life in everyday use.

**Official Ratings vs. Real-World Performance**

Apple officially rates the iPhone 17 Pro Max for up to 35 hours of video playback under controlled conditions using the Apple TV app. However, such figures don’t usually reflect typical usage, where multiple demanding apps operate simultaneously, reducing battery longevity.

In this context, the 13-hour runtime achieved in the Mrwhosetheboss test offers a more realistic insight into how the iPhone 17 Pro Max performs in everyday scenarios, underscoring its superior battery efficiency.

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With its outstanding battery endurance, the iPhone 17 Pro Max sets a new benchmark for flagship smartphones, challenging competitors like Samsung’s Galaxy S25 Ultra to keep pace.
https://www.newsbytesapp.com/news/science/iphone-17-pro-max-beats-samsung-s-flagship-in-battery-test/story