With a name like ZenFone 3 Zoom, you'd think that the best part about the new unlocked phone from Asus is its camera. And that camera is great, as the 2.3x optical zoom is even longer than what you'll find on the iPhone 7 Plus.
But it's how how long this phone lasts on a charge that makes it truly stand out. In fact, this is the longest-lasting phone we've ever tested.
On the Tom's Guide Battery Test, which involves continuous web surfing over 4G on 150 nits of screen brightness, the ZenFone 3 Zoom endured for a truly epic 16 hours and 49 minutes. That blows away the average smartphone at 9:32.
Part of the credit goes to the ZenFone 3 Zoom's monster-sized 5,000 mAh battery, but it also benefits from the power-efficient Snapdragon 625 CPU. This phone isn't as fast as handsets with the latest and greatest Snapdragon 835 chip, but we're willing to bet that a lot of people would be willing to trade some speed for the best battery life ever.
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Mark Spoonauer is the global editor in chief of Tom's Guide and has covered technology for over 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, including Cheddar, Fox Business and other outlets. 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.