The 13 Pro Max still feels fast, takes excellent photos, and easily lasts all day on a full charge even at 88% battery health. The usual improvements you expect from a new iPhone—faster processor, better cameras, longer battery life—would be lost on me in day-to-day use.

In a comprehensive battery life comparison from Simple Alpaca, among the latest iPhone 16 models, including the iPhone 16 Pro, iPhone 16 Plus, iPhone 16,

It's not surprising that the largest smartphones by the likes of Apple and Samsung have the longest battery lives, because they have the biggest batteries — but new testing shows that the iPhone 16 Pro Max beats them all.

The two Android sets that beat out the iPhone 16 Pro Max did so with batteries that are over 800 mAh greater in capacity. Both pack in 5,500 mAh cells compared to Apple’s 4,676ish mAh cell ( Tom’s Guide lists the iPhone as 4,685 mAh versus iFixit’s 4,676). However, they also only got 36–42 minutes more runtime under the same conditions.

As for Apple’s main high-end phone competition, the Samsung Galaxy S24 Ultra fell well short of the iPhone 16 Pro Max, clocking 16 hours and 45 minutes of battery life, despite having a larger 5,000mAh cell (compared to the iPhone 16 Pro Max’s 4,685mAh).

On our TikTok rundown battery test, which loops a continuous video until it dies with the display at 50% of brightness, the iPhone 16 Pro Max ran out of juice after 25 hours and 17 minutes.

These are the differences between the iPhone 16 Pro Max's specs and those of the iPhone 13 Pro Max, for users curious about upgrading or wondering if it's worth saving money by buying an older model.

As new as the iPhone 16 models may be, details have started emerging about next year's phones. Here's an early look at how an iPhone 17 vs. iPhone 16 comparison is shaping up.