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iPhone 7 Battery Life Results: Huge Improvement

Between the iPhone 7 and iPhone 7 Plus' water resistance, improved cameras and faster A10 Fusion chip, they're pretty solid upgrades, but none of that matters if the phones don't last long enough on a charge.

The good news: both phones lasted more than 2 hours longer than their predecessors, based on the testing from our full iPhone iPhone 7 review. And their endurance is right up there with some of the top-selling phones.

This isn't a huge surprise. The new iPhone 7 packs a larger battery than the iPhone 6s. We're talking a 1960 milliampere hour battery, versus 1715 mAh for the iPhone 6s. The iPhone 7 also steps things up with a 2900 mAh pack, compared with 2750 mAh for the iPhone 6s Plus. The new iPhones also benefit from having two low-power cores in the A10 Fusion processor.

MORE: iPhone 7 is Now the World's Fastest Phone (By a Lot)

On the Tom's Guide Battery Test, which involved continuous Web surfing over AT&T's 4G LTE network on 150 nits of screen brightness, the iPhone 7 lasted 9 hours and 3 minutes. That's a huge improvement over the iPhone 6s, which turned in a runtime of just 6:46 on the same test last year over AT&T's network.

The iPhone 7 Plus is the marathon runner of these two phones, though. It lasted 10 hours and 35 minutes, beating the iPhone 6s Plus' 8:16 by a wide margin. The Galaxy Note 7 was right behind at 10:26.

It's important to note that we've tested other phones that last longer than 12 hours. For instance, the Huawei Mate 8 lasted 12:47, and the Sony Xperia X Performance ran for 12:01. The mid-range Moto Z Play is our current endurance champ with a whopping runtime of 13:46.

But when it comes to the iPhone's closest competitors in the flagship smartphone race, the iPhone 7 Plus is a top performer. The iPhone 7 is good, but not that much above the smartphone average at 8:54.

Mark Spoonauer

Mark Spoonauer is the global editor in chief of Tom's Guide and has covered technology for nearly 20 years. In addition to overseeing the direction of Tom's Guide, Mark specializes in covering all things mobile, having reviewed dozens of smartphones and other gadgets. He has spoken at key industry events and appears regularly on TV to discuss the latest trends. Mark was previously editor in chief of Laptop Mag, and his work has appeared in Wired, Popular Science and Inc. Follow him on Twitter at @mspoonauer.