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iPhone 17 Pro Max easily beats Samsung Galaxy S25 Ultra in battery life test

<div class="feat-image">(https://9to5mac.com/wp-content/uploads/sites/6/2025/09/iphone-17-pro-max-headshot.jpg?quality=82&strip=all&w=1600)</div><p>The  seems to have firmly cemented itself as the smartphone battery king, as seen by Mrwhosetheboss’s battery life test comparison (https://www.youtube.com/watch?v=9CggZxyWl-g&amp;t=11s). On this simulated usage test, Samsung’s flagship big phone, the Galaxy S25 Ultra, managed 11 hours 58 minute. In comparison, the iPhone 17 Pro Max managed a whopping 13 hours before it died. </p>



<p>Notably, this test used the UK version of the 17 Pro Max, which includes a physical SIM tray. The eSIM-only model sold in the United States and some other markets has an even bigger battery, and probably lasted at least another half an hour extra as a result. </p>



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Source: iPhone 17 Pro Max easily beats Samsung Galaxy S25 Ultra in battery life test (https://9to5mac.com/2025/09/20/iphone-17-pro-max-battery-life-test/)