A fast processor and a big display won’t get you very far if your business phone is always running out of juice. That’s why long battery life is crucial for anyone who uses a smartphone for work. Before you buy your next mobile device, read on for the smartphones that couple great productivity features with serious longevity.

Note: Numbers represent battery life with continuous Web browsing over Wi-Fi. 

Huawei Ascend Mate 2
Battery life: 14 hours and 45 minutes

This huge phone comes with a sizeable battery life to match. The Huawei Ascend Mate 2 lasted an incredible 14 hours and 45 minutes with continuous use. The Ascend Mate 2’s battery is so beefy that Huawei even lets you use the phone as a recharging station for your other mobile devices. Just connect a smartphone, tablet or notebook to the phone via a USB cable so you can refuel a second device on the go. Meanwhile, its enormous, 6.1-inch (15.5 cm) screen is another potential perk for business users — if you can handle the extra bulk. The large display gives you plenty of room to work, but it also makes the phone less portable and harder to use with one hand.

• 4G LTE capable
• Expandable memory
• Long battery life

OnePlus One

Battery life: 13 hours and 15 minutes

The OnePlus One is a great 5-inch (12.7 cm) business phone with high-end hardware, great software features, and an eye-popping 13 hours and 15 minutes of battery life. OnePlus doesn’t have the name recognition of major manufacturers such as Samsung or Apple, but the company’s flagship phone has the specs to match up to the Galaxy S5 and iPhone 5s. The OnePlus One also includes useful security features, such as Privacy Guard, which lets you block individual apps from accessing personal information stored on your device, plus built-in encryption for text messaging. It’s not available through major carriers like AT&T or Verizon, but even though you’ll pay more up-front for the device than you would for a subsidized smartphone, you won’t be locked into a pricey two-year contract.

• 4G LTE capable
• Budget friendly
• Long battery life
• Security features

Nokia Lumia 1520

Battery life: 11 hours and 30 minutes

Nokia’s huge Lumia 1520 might be the longest-lasting smartphone not powered by Android, running for about 11 hours and 30 minutes in tests. Longevity aside, this Windows 8.1 phone offers a huge, 6-inch (15.2 centimeters) screen and fast performance. It runs the latest version of the Windows Phone operating system, which includes plenty of productivity-boosting features. For instance, a new notification hub lets you view all your alerts in a single location. It also adds Cortana, a voice-activated digital assistant that lets you perform hands-free actions, such as saving a note or performing a Web search.

• Expandable memory
• Long battery life
• Security features
• Productivity app selection

Sony Xperia Z3

Battery life: 12 hours and 9 minutes

Sony’s Xperia Z3 is a sleek, fast business phone with a bright 5.2-inch display. It also benefits from Sony’s Small Apps functionality, a handy multitasking feature that lets you run a second app in a floating window over your main app. And the Z3 stands out in a crowd, thanks to its handsome glass and metal design. But its best feature might be its epic battery life: the phone ran for 12 hours and 9 minutes on our battery test. The biggest downside might be its limited availability; in the U.S., Sony’s flagship phone is only available off-contract through T-Mobile.

iPhone 6 Plus

Battery life: 10 hours

Apple’s first phablet packs a bigger battery than other iPhones. The iPhone 6 Plus‘ beefy battery delivered about 10 hours of battery life with continuous use. And longer battery life isn’t the only thing the big new iPhone has to offer business users. Compared to other models, the large, 5.5-inch (14 cm) display gives you tons of room to work. The larger screen also allows for “dual-pane mode” in certain apps, such as Mail and Messages. When you’re holding your phone sideways, this mode shows a persistent navigation pane on the left side of your screen, letting you easily move between conversations without tapping through hidden menus; smaller iPhones don’t have room for the second pane. Plus, the iPhone 6 includes the usual updates you’d expect from a new generation of iPhones, including a faster processor and tons of software updates.

• 4G LTE capable
• Long battery life
• Security features

HTC One M8

Battery life: 9 hours and 50 minutes 

With an all-metal body and sleek curves, the HTC One M8 might be the sexiest business phone you can buy. Long battery life makes it ever-more appealing: It lasts for about 9 hours and 50 minutes with continuous use. Performance-picky users will like that the One M8 is one of the fastest smartphones currently available. It also includes handy features like Motion Launch, which lets you activate the display quickly by tapping it twice, even when the screen is turned off. The metal design of the phone makes it a bit heftier than the competitors, but that’s a fair trade-off for a smartphone that looks and feels as good as the One M8.

• 4G LTE capable
• Expandable memory
• Long battery life
• Security features

Samsung Galaxy S5

Battery life: 9 hours and 42 minutes

Samsung’s flagship smartphone, the Galaxy S5, packs powerful hardware and great security features for business users. It also gives you good longevity for a 5.1-inch smartphone, lasting about 10 hours and 50 minutes with continuous use. The Galaxy S5’s super-sharp display is bright and colorful, and its powerful quad-core processor delivers fast performance. In addition, the fingerprint scanner embedded in the phone’s home button lets you lock and unlock your device without fussing with passwords or lock screens. Plus, Samsung’s Knox security suite gives you even more protection by letting you run apps under a secure profile, ensuring rogue applications can’t access your data.

• 4G LTE capable
• Expandable memory
• Removable battery
• Multitasking friendly
• Long battery life
• Security features

Motorola Droid Turbo

Battery life: 9 hours and 30 minutes

Motorola claims that its new flagship phone can run for two straight days without a charge; however, with regular use, we found its staying power to be a bit below that. Still, the Droid Turbo’s 9 hours and 30 minutes of battery life is pretty impressive for a smartphone this powerful. It packs a supersharp, 5.2-inch quad-HD display; a blazing-fast quad-core processor; and a whopping 3GB of RAM. And its huge 3,900-mAh battery is the biggest we’ve seen in a U.S. smartphone. Plus, the Droid Turbo comes with a bunch of handy software features, like always-listening voice commands and Moto Display, which makes it easier to view and act on incoming messages right from the lock screen. 

By: Brett Nuckles

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