Which phone has the best battery life in 2017?


Which phones had the best battery life in 2017? And does battery life on phones ever improve or does it stay roughly the same throughout the years?

At PhoneArena, we do a standardized proprietary battery test on all phones that we review. We test every device diligently: we make sure that its screen is set at the same brightness level and to ensure this we measure brightness level down to the nit with a special colorimeter, we also turn off external notifications and other sources of power drain that might skew the results of our test. For some phones, we double-test if we have doubts about the results. This gives us a comprehensive picture of battery life numbers for all major flagships not just in 2017, but also through the wider lens of time.

As 2017 winds down to a close, we take a look at all the major flagship phones of the year and their battery life performance, and we compare the results to the average battery life of flagships in 2016 and 2015 to see if there is any improvement.

But first, let's look at the list of 2017 flagship phones to see which one scored best in terms of battery life.

Which Phone has the Best Battery Life?

Battery life(hours)Higher is better
Apple iPhone 88h 37 min(Good)
Apple iPhone 8 Plus10h 35 min(Excellent)
Apple iPhone X8h 41 min(Good)
BlackBerry KEYone12h 26 min(Excellent)
Google Pixel 28h 40 min(Good)
Google Pixel 2 XL8h 57 min(Good)
HTC U119h 3 min(Good)
Huawei P107h 42 min(Average)
Huawei P10 Plus8h 18 min(Average)
Huawei Mate 10 Pro12h 5 min(Excellent)
LG G66h 9 min(Poor)
LG V309h 34 min(Good)
Motorola Moto Z2 Play9h 19 min(Good)
Motorola Moto Z2 Force Edition7h 36 min(Average)
Nokia 88h 59 min(Good)
OnePlus 59h 18 min(Good)
OnePlus 5T8h 51 min(Good)
Razer Phone8h 52 min(Good)
Samsung Galaxy S88h 22 min(Average)
Samsung Galaxy S8+8h(Average)
Samsung Galaxy S8 Active10h 57 min(Excellent)
Samsung Galaxy Note87h 50 min(Average)
Sony Xperia XZ Premium8h 15 min(Average)
Xiaomi Mi 69h 14 min(Good)
Xiaomi Mi MIX 29h 5 min(Good)
*Note: you can add more phones to this list by using the "Add Phone" field above.

There is one devices that scored noticeably higher than all the rest: the BlackBerry KeyOne. It's in a league of its own when it comes to battery life and a true, two-day performer. Then, there are two other devices that score noticeably higher than the rest: the Samsung Galaxy S8 Active and the Apple iPhone 8 Plus, the only other two with a score of more than 10 hours.

There is also one device that easily wins the "Golden Raspberry Award" of battery life, the one with the absolutely worst battery life: the LG G6. It scored just 6 hours and 9 minutes on our test, way below the average.

While there are highs and lows, if you are interested in the overall trend for the industry, you need to look at the average flagship battery life in 2017. The grand average of all flagship phones is a battery life of 8 hours and 44 minutes. This is actually quite impressive. Look down at the charts below and you can see that in 2016 and in 2015, the battery life average was around 7 hours and 5 minutes, so in 2017, we got a solid 26% improvement. 

Battery life(hours)Higher is better
Apple iPhone 77h 46 min(Average)
Apple iPhone 7 Plus9h 5 min(Good)
Apple iPhone SE7h 41 min(Average)
Samsung Galaxy S7 edge7h 18 min(Average)
Samsung Galaxy S76h 37 min(Average)
Google Pixel XL7h 19 min(Average)
Google Pixel7h 45 min(Average)
LG V206h 23 min(Poor)
LG G55h 51 min(Poor)
Motorola Moto Z Force Droid Edition7h 9 min(Average)
Motorola Moto Z Droid Edition5h 52 min(Poor)
OnePlus 35h 53 min(Poor)
HTC 107h 10 min(Average)
Sony Xperia XZ6h 41 min(Average)
Huawei P96h 51 min(Average)
Xiaomi Mi 57h 27 min(Average)

Last year, in 2016, there was only one phone to break the 9 hour mark and even a few phones under 6 hours. 

Battery life(hours)Higher is better
Apple iPhone 6s8h 15 min(Average)
Apple iPhone 6s Plus9h 11 min(Good)
Samsung Galaxy Note59h 11 min(Good)
Samsung Galaxy S6 edge8h 11 min(Average)
Samsung Galaxy S67h 14 min(Average)
LG V105h 51 min(Poor)
LG G46h 6 min(Poor)
HTC One M96h 25 min(Poor)
HTC One A96h 3 min(Poor)
Google Nexus 6P6h 24 min(Poor)
Google Nexus 5X6h 25 min(Poor)
OnePlus 26h 38 min(Average)
OnePlus X5h 57 min(Poor)
Huawei P87h 12 min(Average)
Sony Xperia Z57h 7 min(Average)

And in 2015, the overall state of things was not much different than in 2016. The average scores was about the same.

Which Phone is Fastest to Charge?

Another important aspect of the battery equation is the time it takes to charge a phone.

Fast charging has been around for most phones for years, but the technology is improving. So let's see how fast different phones charged. Note that we use the charger that is in the box for this test. The iPhone 8, 8 Plus and X all support fast charging, but require a new charger in order for it to work. That is why you see their slow charge results, as these are the times that the average users who are not aware of the need to purchase a separate charger will have.

Charging time(hours)Lower is better
Apple iPhone 82h 28 min
Apple iPhone 8 Plus2h 58 min
Apple iPhone X3h 9 min
Google Pixel 21h 51 min
Google Pixel 2 XL2h 32 min
HTC U111h 38 min
Huawei P101h 40 min
Huawei P10 Plus1h 57 min
Huawei Mate 10 Pro1h 42 min
LG G61h 37 min
LG V301h 48 min
Motorola Moto Z2 Play2h 12 min
Motorola Moto Z2 Force Edition1h 50 min
Nokia 82h 11 min
OnePlus 51h 39 min
OnePlus 5T1h 33 min
Razer Phone2h 20 min
Samsung Galaxy S81h 40 min
Samsung Galaxy S8+1h 39 min
Samsung Galaxy Note81h 42 min
Xiaomi Mi 61h 54 min
Xiaomi Mi MIX 21h 28 min

The interesting trend in 2017 is that charging speeds actually went down for many flagships. Even though still fast, compared to last year, it took more time to charge phones by Google (the Pixels), OnePlus, LG and Motorola.

Take a look at the results for 2016 right below:

Charging time(hours)Lower is better
Apple iPhone 72h 21 min
Apple iPhone 7 Plus3h 17 min
Apple iPhone SE2h 35 min
Samsung Galaxy S7 edge1h 39 min
Samsung Galaxy S71h 28 min
Google Pixel XL1h 58 min
Google Pixel1h 59 min
LG V201h 26 min
LG G51h 16 min
Motorola Moto Z Force Droid Edition1h 50 min
Motorola Moto Z Droid Edition1h 12 min
OnePlus 31h 14 min
HTC 101h 40 min
Sony Xperia XZ2h 54 min
Huawei P92h 26 min
Xiaomi Mi 52h 19 min

Finally, in 2015 we see more extremes. There were some super fast charging phones: in fact, the LG V10 was fastest in the history of our test, but also the average for most other phones was slower charging.

Charging time(hours)Lower is better
Apple iPhone 6s2h 30 min
Apple iPhone 6s Plus2h 45 min
Samsung Galaxy Note51h 21 min
Samsung Galaxy S6 edge1h 23 min
Samsung Galaxy S61h 18 min
LG V101h 5 min
LG G42h 7 min
HTC One M91h 46 min
HTC One A91h 50 min
Google Nexus 6P1h 29 min
Google Nexus 5X1h 40 min
OnePlus 22h 30 min
OnePlus X2h 1 min
Huawei P83h
Sony Xperia Z52h 36 min


Summing it all up, we can clearly see that 2017 brought us a big leap in battery life.

On the Android side of things, the big reason for this improvement is the switch to the Snapdragon 835 chip. The Snapdragon 835 was the first mobile chip made on the 10nm manufacturing process, which in simple terms means that it delivers more power at a lower power consumption cost.

In real-life terms, that resulted in a nearly 26% improvement in battery life on our test, the fastest growth in battery life that we have seen in a long while.

Next year, in 2018, we expect a slower growth in battery life numbers, but still growth. While today, we are not quite in two-day battery life territory for mainstream phones, next year, we will be getting closer to that. There will be a new Snapdragon 845 chip to drive that growth on Android, more power efficient displays and further software tweaks that manufacturers will make.

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