Smartphone batteries are getting larger and larger, with the promise of phones that can go all day on a single charge. But grab a fully charged Cat S41, and you won’t need to search for any electrical outlets during the day. The durable phone from Cat is the longest-lasting phone we’ve tested in the past year-and-a-half, lasting more than 15 hours on our punishing battery test.
Credit: Tom's Guide
Smartphones With the Longest Battery Life (Hours:Minutes)
- Cat S41: 15:19
- Moto E4 Plus: 14:48
- Huawei Mate 10 Pro: 14:39
- ZTE Blade Max View: 12:48
- BlackBerry KeyOne: 12:47
- Sony Xperia XA2 Ultra: 12:46
- Google Pixel 2 XL: 12:09
- 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
- iPhone XR (tie): 11:26
- Galaxy Note 9 (tie): 11:26
- Asus ZenFone Max Plus: 11:25
- iPhone 8 Plus: 11:16
- Honor View (tie): 11:12
- LG X Venture (tie): 11:12
- Galaxy Note 8: 11:11
- BlackBerry Key2: 11:09
The next two phones are a study in contrasts. The affordable Moto E4 Plus lasted 14 hours, 48 minutes on our battery test, impressive for a phone you can buy for less than $200. The longest-lasting flagship on our list is the Huawei Mate 10, which held out for more than 14 hours and 30 minutes when we put it to the test. Those two phones are followed by the newest entry to our Top 20 — ZTE's budget-priced Blade Max View, which fell just shy of 13 hours when we tested it.
In our battery test, we have phones continuously surf the web over LTE until they run out of juice. The average phone lasts 9 hours, 48 minutes, but the phones we’ve highlighted here held out for at least 11 hours. We’ve limited our list to the Top 20 phones we’ve tested in the past 15 months, which excludes older phones like the ZenFone 3 Zoom (which topped 16 hours when we tested it in the first half of 2017) as well as long-lasting phones like the Huwaei P20 Pro and Vivo Nex S that aren’t available in the U.S.
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.
The Cat S60 released in 2016 offered long battery life, but an equally large price tag. The Cat S41 delivered a more affordable way to withstand the punishment of job sites and the great outdoors, while reaping the benefits of a 5,000 mAh battery. Not only does the Cat S41 15-plus hours of battery life on our test, you can also turn the phone 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 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 budget phone, 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, even though Huawei has since come out with a new version. (That phone, the Mate 20 Pro, lasted a little more than 10 hours on our test, and it's hard to come by in the U.S.) The 6-inch Mate 10 Pro 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 original 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 on this list.
ZTE's return to the U.S. market isn't a complete success, but at least you can count on a very long lasting phone with the $199 Blade Max View. The 4,000 mAh battery in this budget phone helps the phone last nearly 13 hours on our battery test. Our one complaint about the battery: it takes a long time to charge. We tried several different USB Type-C adapters, but each time, it took us several hours to fully charge this phone.
The keyboard on this TCL-built BlackBerry phone may be its centerpiece feature, but don't sleep on the older 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 until the BlackBerry Motion came along. 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. While the phone first came out in 2017, TCL released a KeyOne Black Edition earlier this year.
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.
Looking for a long-lasting flagship phone? Forget about the latest from Apple and Samsung, and try 2017’s 6-inch phone from Google instead, which remains available from both Verizon and the Project Google wireless service. The Pixel 2 XL lasted more than 12 hours on our battery test, topping the newer Pixel 3 XL by more than 2 hours. And when you run out of juice with the Pixel 2 XL, fast charging should give you 7 hours of battery life just 15 minutes after plugging in. Unfortunately, this phone doesn’t offer wireless charging like more recent flagship phones (including the Pixel 3) do.
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 one of last year's flagships — 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 11:44 time in our battery test.
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 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.
If you're looking for a reason to jump on the Google 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. The X4 Android One gives you a lower-cost option for Google Fi alongside its impressive battery life.
Apple’s most colorful iPhone is also its longest-lasting. The iPhone XR turned in the best time ever for an Apple device on our battery test, matching the 11:26 time of Samsung’s Note 9 while costing a lot less. Like the iPhone XS and XS Max, this 6.1-inch model supports wireless charging and fast-charging though the latter feature requires you to buy a separate adapter.
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
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.
This 2017 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.
While the Galaxy Note 9 lasts a little longer, its predecessor still can give you more than 11 hours of battery life on a single charge. So you won’t be sacrificing battery life if you opt for last year’s phone, especially if you can find one for a lower cost than the Note 9’s hefty price tag.
The BlackBerry Key2 doesn’t last as long as the BlackBerry KeyOne, but 11 hours, 9 minutes of usage is nothing to sneeze at. In addition to its 3,500 mAh battery, the Key2 features new software that watches how you use your phone and recommends when you should top up your charge, based on those usage habits.
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