Phones with best battery life in 2018

Posted: , by Victor Hristov Victor Hristov

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Phones with best battery life in 2018
Which phone has the best battery life in 2018?

If you are looking for a phone that you know will last you through the longest of days or if you want to avoid buying a phone with poor battery life, you need to know those battery numbers.

We have tested all major new phones available right now in 2018 and we have found that battery life depends not only on the battery size, but on a number of other variables from software to display quality and other optimizations.

Of course, measuring battery life is complicated and it varies a lot depending on how you use your phone. For OLED screens, every single pixel matters and if you look at a picture with a lot of whites it would drain more than a photo with darker colors because every individual pixel consumes energy there, unlike the one backlight for the whole screen of LCD displays. And then there is standby that is a topic of a different discussion. Keeping all of these many disclaimers in mind, we ran our proprietary benchmark test that is the same across different devices and we have set the brightness of screens at the same level to keep things on equal terms. Here are the results that we've got:

*Note: you can add more phones to this list by using the "Add Phone" field above.

The top 5 phones with best battery life

BlackBerry Motion & KeyOne

Battery sizes: 4,000 mAh & 3,500 mAh

BlackBerry Motion (no QWERTY) on the right, BlackBerry KeyOne (with QWERTY) on the left

We don't know how is it exactly, but the Snapdragon 625 system chip is the one piece of hardware that you just know will deliver outstanding battery life. The BlackBerry Motion and the BlackBerry KeyOne both feature the Snapdragon 625 chip and it is no surprise that they easily rank as the two phones with best battery life in 2018.

The Snapdragon 625 inside the Motion and the KeyOne is a step below the Snapdragon 8xx series of chips in terms of performance, but it is an extremely frugal chip and you can easily get two days of the two BlackBerry phones. It is not just the chip here, though, the Motion comes with a large, 4,000 mAh battery, while the KeyOne has a smaller screen and an adequately sized, 3,500 mAh battery.

Huawei Mate 10 Pro

Battery size: 4,000 mAh

Phones with best battery life in 2018

The forbidden fruit, the Mate 10 Pro, a big phone by Chinese company Huawei also has incredible battery life and will be able to survive a full two days off the charger for the average user.

Unlike the two BlackBerries, the Mate 10 Pro uses a flagship-grade chip: one made by Huawei itself, the Kirin 970. Huawei manages to keep its power consumption at a reasonable level and it has also equipped the phone with a big, 4,000 mAh battery. All of these factors combine for some amazing battery life on the Huawei Mate 10 Pro. It's a pity that the phone is not officially sold in the United States.

Samsung Galaxy S8 Active

Battery size: 4,000 mAh

Phones with best battery life in 2018

Samsung could have just called its rugged Galaxy S8 Active, the Galaxy S8 "Extra Battery" because this phone lasts way more than the flagship Galaxy S8 and S8 Plus.

The slightly larger body of the phone allows Samsung to equip it with a much larger than usual, 4,000 mAh battery. On the inside, the S8 Active is not much different than the regular S8: it also has the Snapdragon 835 system chip and identical other components, so it is the larger battery that really drives the longer battery life. The looks of the rugged S8 Active might not be everyone's cup of tea, but if you are looking for a practical phone that will last and last, the S8 Active delivers.

Apple iPhone 8 Plus

Battery size: 2,691 mAh

Phones with best battery life in 2018

The Apple iPhone 8 Plus has the smallest battery size of all five phones we mention in this list, but thanks to careful optimizations in iOS, it actually delivers very, very solid battery life.

You can easily go through even the longest day on a single charge with the iPhone 8 Plus, and while it might not always have enough battery to last you a full day, it still ranks in the top five with its battery numbers and that's a great achievement. The iPhone 8 and X series are also the first iPhones to support quick charging, so you don't need to wait more than three hours to get the battery charged back from 0 to 100%.

Phones with worst battery life


Battery size: 3,300 mAh

Phones with best battery life in 2018

The raspberry award for the phone with worst battery life in 2018 goes to... the LG G6!

The LG G6 was released in early 2017 and it was the only 2017 flagship with the older, Snapdragon 821 chip inside. This is likely the one factor that drags the G6 down, as the Snapdragon 821 simply does not seem as well optimized as the Snapdragon 835 in terms of battery life.

In real life, heavier use will drain the battery on the G6 before the end of the day and might leave you with a dead and useless phone if you don't charge up during the day. Overall, the G6 is definitely way below the average in terms of battery life. We are hopeful that LG will learn its lessons and will launch the G7 in 2018 with a much better optimized battery.


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