There's long-lasting phones, and then there's the ZenFone 3 Zoom. The Asus phone may boast dual rear cameras with an optical zoom, but its true standout feature is its long-lasting battery life. Put simply, the ZenFone 3 Zoom is the longest-lasting smartphone we've ever tested.
ZenFone 3 Zoom (Credit: Tom's Guide)
Smartphones With the Longest Battery Life (Hours:Minutes)
- ZenFone 3 Zoom: 16:46
- Cat S41: 15:19
- Moto E4 Plus: 14:48
- Huawei Mate 10 Pro: 14:39
- LG X Power: 12:58
- BlackBerry KeyOne: 12:47
- Sony Xperia XA2 Ultra: 12:46
- Cat S60: 12:42
- Google Pixel 2 XL: 12:09
- ZTE Blade V8 Pro: 12:08
- ZTE Max XL: 11:53
- Moto G5S Plus: 11:50
- Sony Xperia XZ2: 11:47
- BlackBerry Motion 11:44
- Moto G5 Plus: 11:43
- Moto X4 Android One: 11:41
- Galaxy Note 9: 11:26
- Asus ZenFone Max Plus: 11:25
- iPhone 8 Plus: 11:16
- Honor View (tie): 11:12
- LG X Venture (tie): 11:12
The runner-up, the durable Cat S41, was almost 90 minutes behind the ZenFone 3 Zoom in our testing, but it's still the only other phone we've tested recently to last longer than 15 hours on a charge. Motorola makes a very strong showing on this list, too. The affordable Moto E4 Plus lasted 14 hours, 48 minutes on our battery test. While that's nearly two hours short of the ZenFone 3 Zoom's result, it's still impressive for a phone you can buy for less than $200.
Our list of the top 20 longest-lasting phones include devices that held out 11 hours or more when we test their battery by having them surf continuously over LTE until they run out of juice. That's well ahead of the average smartphone, which conks out at 9 hours, 48 minutes. You'll find everything from budget phones like the Moto G5 Plus to flagship devices from Samsung (Galaxy Note 9), Google (the Pixel 2 XL), and the Huawei Mate 10 Pro. As for iPhones, the iPhone 8 Plus remains the only Apple device on this list, after the iPhone XS Max topped out at 10 hours, 38 minutes.
Two phones that don’t make our top 20 are the Huwaei P20 Pro and Vivo Nex S. Both are certainly long-last models — the P20 Pro held out for 14 hours, 13 minutes, while Vivo’s phone lasted 13 hours. However, neither phone is being sold in the U.S. If nothing else, consider the performance of both devices to be a teaser of just how long a smartphone can last.
When testing phones, we set each phone's display to 150 nits to normalize for brightness and make sure each handset is receiving at least three bars of service.
These days, battery life is more important than ever, thanks to the big screens, superfast processors and demanding apps we find on the latest phones. After all, what good is that advanced camera or high-resolution display if your handset is dead before the sun goes down? Here's a closer look at the phones that make the grade when it comes to all-day battery life.
You'll never have to sweat making it from sunrise to sundown with this older ZenFone Asus. The ZenFone 3 Zoom features a massive 5,000 mAh battery, and while its Snapdragon 625 processor isn't the fastest CPU available, it does a pretty good job managing power consumption. That means you're unlikely to run out of juice capturing photos with the ZenFone's dual rear cameras or its 13-MP selfie cam. You can also use your ZenFone 3 Zoom as a portable power pack, charging other devices via a reverse charging feature.
If you're impressed by the durability and longevity of the Cat S60 but put off by its $600-plus price tag, consider the Cat S41. The more affordable phone can also stand up to the punishment of job sites and the great outdoors, but it's the 5,000 mAh battery that really impresses. Not only does the Cat S41 match the ZenFone 4 Max with the second-best result on ou battery test, but you can also turn the S41 into an external power pack that boosts the battery of other devices. We wish the camera on the S41 performed better, but if you need a phone that doesn't require a charge to get you through the day, Cat's latest smartphone is tough to beat.
What a difference a 5,000 mAh can make. Moto's E4 fell short as a good budget option, due to disappointing battery life. For the E4 Plus, Motorola went with a larger battery and reaped serious rewards on our battery test, lasting nearly 15 hours. For a phone that will cost you less than $200, that's an impressive result, especially since the display and rear camera on the E4 Plus are pretty solid, too.
Among high-end flagship phones, it's hard to top Huawei's Mate 10 Pro and its 4,000 mAh battery. The 6-inch phone lasted more than 14-and-a-half-hours on our battery test, besting the similarly-sized Pixel 2 XL by more than 2 hours. It lasted nearly four hours longer than Apple's iPhone X. You'll also appreciate the reverse-charging mode on the Mate 10 Pro, which lets you power up other devices from your smartphone. Another Huawei phone we tested, the P20 Pro, lasts nearly as long at 14:13, but since that phone isn't available in the U.S., we're not including it in our Top 25.
During standby, the LG X Power barely touches any battery life, ensuring you'll always have juice when you need it. In regular use, this phone has enough life that many people won't even have to charge it everyday. While its display, design and especially cameras are pretty lackluster, with a price that can get as low as $100 after deals and rebates, the X power is a steal for people looking for strong battery life. Note that LG just previewed a follow-up version, the LG X power 2, which boasts a 4500 mAh battery to the 4100 mAh power pack in this phone. The new version should arrive later this year.
The keyboard on this TCL-built BlackBerry phone may be its centerpiece feature, but don't sleep on the phone's battery life. We managed to squeeze out a little less than 13 hours from this phone, thanks to its 3505 mAh battery — the largest to ever go inside a BlackBerry device. And when you do run out of juice, the KeyOne supports Quick Charge 3.0, which gets you a 50 percent charge after half-an-hour. A Boost mode even maximizes charging efficiency.
The battery life on this blocky 6-inch phone is one of the most noteworthy things about Sony's otherwise bland midrange offering. The Xperia XA2 Ultra lasted nearly 13 hours on our battery test, thanks to a 3,580 mAh battery. We just wish the phone could charge faster. After draining the battery and plugging in the Xperia XA2 Ultra, we only recorded a 19 percent charge after 15 minutes; after an hour of charging, the battery was only up to 56 percent.
Talk about a phone that can take a licking and keep on ticking. Cat has built an extremely durable phone with the S60, which survived multiple 6-foot drops and a 30-minute swim in 6 feet of water. And while it took all that punishment, the S60’s battery never flagged, lasting 12 hours, 42 minutes in our battery test. You may not need the phone’s built-in thermal imaging feature, in which case the longer-lasting S41 may better serve your needs.
Looking for a long-lasting flagship phone? Forget about the latest from Apple and Samsung, and try Google's new 6-inch phone instead. The Pixel 2 XL lasted more than 12 hours on our battery test. And when you run out of juice, fast charging should give you 7 hours of battery life just 15 minutes after plugging in. We only wish the Pixel 2 XL supported wireless charging like the iPhone 8 Plus and Samsung's latest phones do.
ZTE didn't cut back on features with its $229 Blade V8 Pro, and that includes the unlocked phone's battery life. Lasting more than 12 hours on our tests, the Blade V8 Pro will remain charged throughout a full day of use. And you're getting more than just a long-lasting phone with this device. ZTE also added other premium features like a fingerprint sensor and dual rear-cameras, making this an attractive budget option — if you can track it down, as ZTE's phones become increasingly harder to find in the U.S.
Battery life is one area where this budget phone from ZTE doesn't compromise. Thanks to its 3,990 mAh battery, the ZTE Max XL held out for nearly 12 hours on our battery test. You'll also get a big, bright 6-inch screen on the ZTE Max XL with full HD resolution. You can still find the Max XL at Sprint-owned Boost Mobile for $99.
The Moto G5S Plus has a few differences from the Moto G5 Plus, notably a bigger screen and dual rear cameras. Battery life isn't one of those differences, though. The G5S Plus has the same 3,000 mAh battery as its sibling, and their results on our battery test are practically the same, with the G5S Plus managing to squeeze out an extra 7 minutes. An included TurboCharger lets you quickly power up the G5S Plus just like you can with the less-expensive G5 Plus.
Sony's phones have a habit of landing on our longest-lasting list, and its new flagship — the Xperia XZ2 — is no exception. Lasting nearly 12 hours on our battery test, it beat flagships from Samsung and Apple; only the Mate 10 Pro and Pixel 2 XL fare better among high-end phones. Two additional features on the XZ2 — Qnovo Adaptive Charging and Battery Care — figure to keep the Xperia's battery in top shape as the phone ages. Qnovo modulates charging based on the battery's health, while Battery Care learns your charging habits to reduce stress on the battery.
If you like the security and productivity-focused nature of BlackBerry's devices but don't necessarily need the physical keyboard on the KeyOne or Key2, the Motion is a fine alternative. It's also a historic device for BlackBerry: The Motion is the company's first water-resistant smartphone, rated at the IP67 level, and claims the largest battery BlackBerry has ever crammed into one of its devices, at 4,000 mAh. The latter helped the phone along to an impressive 11 hours and 44 minutes in our battery test using T-Mobile's network.
It's an older model now, but the fifth-generation of Motorola's G phones remains a shining example of how battery life shouldn't be something you have to compromise on if you want to save money on a smartphone. The G5 Plus ($229 for the 32GB model, $299 if you double the storage to 64GB) lasts more than 11 hours on a single charge even with its low price tag. Thanks to TurboCharge, you can add up to 6 hours of battery life after just 15 minutes of charging. The Moto G5 Plus also boasts a bright, colorful screen, a solid camera and the latest version of Android Nougat.
If you're looking for a reason to jump on Google's Project Fi wireless service, maybe the long battery life of the Moto X4 Android One will convince you. This is a special variation of the midrange Moto X4 for Google's wireless service, and it lasted for 11:41 of continuous web surfing on the Project Fi network (which cobbles together T-Mobile, Sprint and US Cellular). The X4 Android One gives you a lower-cost option for Project Fi alongside its impressive battery life.
Samsung went big on the battery with its new Note 9, upping the power pack to 4,000 mAh from 3,300 mAh in last year’s Note 8. The new phone lasted longer on our battery test, but only by a little, out-pacing the Note 8 by 15 minutes. (Initially, the Note 9 lasted 11:16 on our battery test, but turning off adaptive brightness on the phone's display improved that time to 11:26) That’s good enough to place the Note 9 ahead of Apple’s longest-lasting smartphone, though other flagships from Google and Huawei hold out for longer.
On its own, an 11:25 time on our battery test would be a pretty impressive result. But the ZenFone Max Plus is made by Asus, which also produces other longer-lasting devices that have other things going for them, like the dual rear cameras on the ZenFone 3 Zoom. In the case of the Max Plus, battery life is pretty much all this phone has going for it. You do get a reverse-charging mode to share some battery with other devices, and the phone's Double Battery Lifespan aims to keep battery life from degrading rapidly over time.
Last year's Apple flagship improved on the iPhone 7 Plus' battery test performance by 45 minutes — impressive since little changed about the battery with the iPhone 8 Plus. Credit the phone's A11 Bionic processor, which not only boosts the iPhone 8 Plus's performance but also seems to manage power more efficiently. That's not the only interesting thing about the iPhone 8 Plus's battery: the new phone also supports wireless charging, using the Qi standard. And with the arrival of new iPhone models, the price on the 8 Plus has dropped. You'll still need to pony up for an adapter to take advantage of the phone's fast charging feature.
Honor View devices look to bring premium features to midrange phones. In the case of the Honor View 10, one of those features is 11 hours-plus of battery life. And when you do need to charge your phone, the View 10 powers up quickly. After just 15 minutes of charging, our tapped-out review unit was up to 26 percent of capacity; it reached 53 percent at the half-hour mark.
This AT&T exclusive isn't just designed to be durable — it's also supposed to go all day on a charge. And after the X Venture lasted more than 11 hours on our battery test, we think it delivers on that promise. Just be aware that to get that number, we had to run our test on Chrome and not the phone's default Firefox browser. (Results were not as good when we used Firefox.) Considering that Chrome is the default browser on most Android phones, however, we didn't think that was a big mark against LG's rugged phone.
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