The Galaxy S7 fetches inferior battery life than the S6 despite much larger cell

With the 2016 generation of its Galaxy A line, Samsung notched something of a record, with both the A5 and A7 managing nearly 10 hours before dying during our strenuous, custom battery life test. Given how the Galaxy S7 features a significantly improved cell capacity of 3,000 mAh (compared to 2,550 for the S6), we were hoping that Samsung has a winner on its hands. Alas, that doesn't seem to be the case.

We've had the Galaxy S7 in our possession for a week now, and as you can imagine we've been hard at work on the review. A major part of it, battery life is something we all care very much about, and that's where our custom battery test comes in. After forcing the S7 through it, we are unfortunately left with the confusing achievement of 6 hours and 37 minutes—a disappointment given the 7 hours and 14 minutes its forerunner clocked. Considering the larger cell of the Galaxy S7, it's a bit weird to see such a notable delta.

A few things are worth pointing out when viewing the results. First off, the Galaxy S7 unit we've got sitting on our desk is the Verizon-branded, Qualcomm Snapdragon 820 variant, and not the Exynos flavor. Second, to ensure uniformity across tested devices, we always set brightness to 200 nits and loop a pre-made script that is designed to replicate the power consumption of typical  real-life usage.

As for when the Galaxy S7 is full out, we clocked a very decent result: 88 minutes to get topped off. Going back to that larger cell, it's only logical that the S7 will need a bit longer than its predecessor to go from zero and back to full again. It's still a leading score.

To be fair, we were actually looking forward to testing the Galaxy S7 for resilience. It seemed pretty much a given that it would best its predecessor, and we even dared hope for a significant improvement. As it is, the Galaxy S7—at least the Snapdragon 820 variant—is starting to lag behind other recently released devices, such as the iPhone 6s and even the Xperia Z5. See how it stacks up for yourself:

Battery life (hours) Higher is better
Samsung Galaxy S7 6h 37 min (Average)
Samsung Galaxy S7 edge 7h 18 min (Good)
Samsung Galaxy S6 7h 14 min (Good)
Apple iPhone 6s 8h 15 min (Excellent)
LG G4 6h 6 min (Average)
HTC One M9 6h 25 min (Average)
Sony Xperia Z5 7h 7 min (Good)
Google Nexus 5X 6h 25 min (Average)
Charging time (minutes) Lower is better
Samsung Galaxy S7 88
Samsung Galaxy S7 edge 99
Samsung Galaxy S6 78
Apple iPhone 6s 150
LG G4 127
HTC One M9 106
Sony Xperia Z5 156
Google Nexus 5X 100
Microsoft Lumia 950 93

Related phones

Galaxy S7
  • Display 5.1" 1440 x 2560 pixels
  • Camera 12 MP / 5 MP front
  • Processor Qualcomm Snapdragon 820, Quad-core, 2200 MHz
  • Storage 32 GB + microSDXC
  • Battery 3000 mAh(28h 3G talk time)



1. kkmkk

Posts: 699; Member since: May 06, 2013

tbh i never trusted your battery ranks they are always wrong .. sorry but the truth must be told the best site for battery rank is gsmarena

2. Johnnokia

Posts: 1158; Member since: May 27, 2012

GSMArena is definitely the best phone site, and they pass every phone through different lab tests before releasing any review.

8. Shocky unregistered

Somebody will complain no matter where the results come from.

18. w1000i

Posts: 242; Member since: Jul 22, 2015

30. akki20892

Posts: 3902; Member since: Feb 04, 2013

i agree with both of u....i always check that site for battery test and review.

31. abc_xyz

Posts: 17; Member since: Aug 22, 2015

they should adopt disqus for their commenting system

43. j2001m

Posts: 3061; Member since: Apr 28, 2014

It's because they did not turn on the always on display off, that and the sd 820, on a small note Briefing as been removed from the uk Samsung s7 sim free phone, there is no lag at all and you get Samsung new news app on the left screen, you also got 131594 in antutu and the rom install is only 7gb in size

44. marorun

Posts: 5029; Member since: Mar 30, 2015

Man you do love spamming j2001m. SD820 S7 get amazing battery life on all other website. Are you working with PA to discredit qualcomm ?

11. maxha97

Posts: 100; Member since: Aug 28, 2012

24. tonyv

Posts: 54; Member since: Mar 12, 2014

nice. thanks for posting this!

26. Shocky unregistered

Their battery life tests are based on Web browsing, can't they test anything else?

38. Ruturaj

Posts: 1484; Member since: Oct 16, 2014

They will in part 2.

12. dimas

Posts: 3348; Member since: Jul 22, 2014

I stopped watching pa's youtube after the xperia z5 review. If other sites will prove pa reviews wrong and far fetched from their own results, I will say goodbye to this site just like what I did to verge and technobuffalo.

13. Kumar123 unregistered

Why come back to the site that never post any trusted battery life test? Go back to your favorite site (GSMarena) that always give the result that you wanted to see.

16. dimas

Posts: 3348; Member since: Jul 22, 2014

What I mean is that the galaxy s7 and s7 edge review will be the last and if it's still farfetched, then I will not visit pa anymore. Too sensitive for pa, little kumar?

22. Kumar123 unregistered

Did I reply to your post? NOPE. Or is it this " kkmkk" your second account here on PA? Why bother explaining to me what do you mean by your previous comment when I didn't even bother to reply to your first comment in the first place. And stop saying that you are going to leave PA. People who said stuff like that are the kind of people who always come back even if the site terminate their account. And even if you leave this site will do fine without you. Have a nice day. Good Bye.

33. kenfold

Posts: 16; Member since: Mar 06, 2016

Phone arena stops your fake information. check out Anandtech site.

41. SayMobile

Posts: 157; Member since: Jan 29, 2014

interestingly all other websites including have praised the galaxy S7's battery life in their reviews. This battery is most definately good., PA is making it all worse .

48. ddxmms

Posts: 170; Member since: Feb 09, 2012

well said my friend

3. Shocky unregistered

Look's like Qualcomm are continuing to make their hardware power hungry. Could be the deciding factor this year, lets hope it's not true as we don't need another year od phones with crappy battery life.

45. marorun

Posts: 5029; Member since: Mar 30, 2015

Look like Shocky is obviously blind to reality. Look at all the others battery review on the web what do they say? Dumb troll..

4. Finalflash

Posts: 4063; Member since: Jul 23, 2013

Going to wait on all different sites and their testing methods to average it. Seems Samsung might have upped the amount of crap running in the background as well as packaged facebook/messenger along with the device for that added kick to the nuts.

5. vuyonc

Posts: 1089; Member since: Feb 24, 2014

Either the software is buggered or my next phone will be the X Performance.

7. celinedion

Posts: 44; Member since: Jan 19, 2016

But snapdragin has the most energy efficient battery management for the modem

9. Anonn

Posts: 230; Member since: Jun 04, 2014

Gsmarena is the trustful site for accurate battery testing, they even include Idle Mode battery consumption. You can even adjust the tests categories and scores to your liking if you want.

10. Kumar123 unregistered

Phonearena always overrates Samsung phones battery life. For the first time in their history they have the guts to give a proper battery life measurement of the Samsung phone. I congratulate you Phonearena.

27. iushnt

Posts: 3086; Member since: Feb 06, 2013

Well, do you think they overrate iPhone too?

46. marorun

Posts: 5029; Member since: Mar 30, 2015

So all the rest of the web overated the battery life? Dumb troll..

50. NoToFanboys

Posts: 3231; Member since: Oct 03, 2015

Blind hater is blind

54. JumpinJackROMFlash

Posts: 464; Member since: Dec 10, 2014

Indians should not speak about anything related to tech. You guys are just too stupid! I've worked with hundreds of outsourced resources and they all suck.

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