The Galaxy S7 edge stalls, delivers middling battery longevity

Battery life being the tough nut to crack it is, we—and pretty much everyone interested in Samsung products—were pretty excited to hear that the South Koreans weren't joking around, and implemented a giant, 3,600 mAh battery with the Galaxy S7 edge. Truth be told, apart from the camera, resilience was the other metric we were most excited to get some actionable information on. Seeing as how the S7 edge has been in our trusty hands this past week, we obviously did just that.

Unfortunately, we bring no good news. The Galaxy S7 edge passed through our demanding battery life test and came out just 7 hours and 18 minutes later—sooner than we expected, and much sooner than we dared hope. In comparison, the Galaxy S6 edge+, which is the de-factor predecessor of the S7 edge, lodged the impressive 9 hours and 29 minutes, all with "just" a 3,000 mAh cell.

Given this underwhelming result, it's worth pointing out that the Galaxy S7 edge we've got over here is the Qualcomm Snapdragon 820 flavor, and not the Exynos make. It's possible that Samsung's own silicon will deliver better performance, though we're not exactly holding our breath—if it does, however, it'd be interesting to figure out Samsung's motives for going with the 820 in the first place.

For what it's worth, the Galaxy S7 edge was tested under the same conditions as any other device going through our custom test, which hasn't changed for a while now. So brightness set to 200 nits and a looping script that is designed to replicate the power consumption of typical real-life usage.

Switching gears to recharge times, the S7 edge redeems itself with a very good showing: just 99 minutes to go from zero to full. Given the large cell at play here, that's a pretty decent result, and still among the best in the industry. 

Battery life (hours) Higher is better
Samsung Galaxy S7 edge 7h 18 min (Good)
Samsung Galaxy Note 5 9h 11 min (Excellent)
Samsung Galaxy S6 edge+ 9h 29 min (Excellent)
Apple iPhone 6s Plus 9h 11 min (Excellent)
HTC One M9+ 6h 21 min (Average)
Sony Xperia Z5 Premium 7h 5 min (Good)
Google Nexus 6P 6h 24 min (Average)
Motorola DROID Turbo 2 8h 1 min (Excellent)
Charging time (minutes) Lower is better
Samsung Galaxy S7 edge 99
Samsung Galaxy Note 5 81
Samsung Galaxy S6 edge+ 80
Apple iPhone 6s Plus 165
HTC One M9+ 185
Sony Xperia Z5 Premium 131
Google Nexus 6P 89
Motorola DROID Turbo 2 82

Related phones

Galaxy S7 edge
  • Display 5.5" 1440 x 2560 pixels
  • Camera 12 MP / 5 MP front
  • Processor Qualcomm Snapdragon 820, Quad-core, 2200 MHz
  • Storage 32 GB + microSDXC
  • Battery 3600 mAh(36h 3G talk time)



2. Johnnokia

Posts: 1158; Member since: May 27, 2012

The most disappointing thing in this great phone so far... I hope the Exynos version does better

8. johanbiff

Posts: 415; Member since: Mar 31, 2015

it will :) read on xda

10. Cicero

Posts: 1134; Member since: Jan 22, 2014

I hope too. I just receive my S7 Edge wirh Exynos 8890 inside. Looking for the results of SD820, battery speaking, I'm very disappointed about it. Did I rush for preordering? I still hope "not".

13. johanbiff

Posts: 415; Member since: Mar 31, 2015

you have the exynos or the SD820? PA is reviewing the SD820 variant

18. Cicero

Posts: 1134; Member since: Jan 22, 2014

Exynos is inside mine. S7 Edge Europe model.

100. kamejoko

Posts: 252; Member since: Nov 10, 2011

yep. this test on s820. i think you will happy with yours. because s820 benchmark so high but eat many battery.

15. kent-gaga

Posts: 609; Member since: Apr 10, 2012

i said it before and I'm saying it again your profile photo is very distracting

23. Cicero

Posts: 1134; Member since: Jan 22, 2014

Did it confuse you? It's a picture from a famous monastery in Romania with preast skuls which rules that place. Did I change it?

30. kent-gaga

Posts: 609; Member since: Apr 10, 2012

i was replying to Johnnokia, not you

32. natypes

Posts: 1110; Member since: Feb 02, 2015

This isn't grindr stfu

54. kent-gaga

Posts: 609; Member since: Apr 10, 2012

this isn't your problem so stfu i wasn't even being impolite or something

50. Rafishant

Posts: 397; Member since: Oct 13, 2015

Why the hell you care about people's profile pic if you are not that interested!

101. kent-gaga

Posts: 609; Member since: Apr 10, 2012

well maybe I am?

68. thegeneral7010

Posts: 437; Member since: Dec 10, 2014

From wat i saw on xda exynos shows big difference in terms of battery life compared to SD820

3. tonyv

Posts: 54; Member since: Mar 12, 2014

i don't believe PA's conclusion here. even if true, there will be some software fixes for both devices coming soon i'm sure.

49. Hoggington

Posts: 356; Member since: Feb 23, 2016

I'm getting about 8.25 hours of SOT with my S7E, on average. Brightness about 50%. If Sammy wants to improve battery life...they just nees to get rid of one of the worst design changes in a mobile OS. And that would be the white backgrounds of Lolipop & Marshmallow. The need to go back to more of a black theme, like was the case with their KitKat ROMs. I know it was a Google design change...but white on an AMOLED screen is by far the worst choice ever, for the base color of your OS and setting, app drawer etc. I slapped on Nova 3.3 so I could have a black app drawer again. Can't stand the white and pastel thing.

75. Zack_2014

Posts: 677; Member since: Mar 25, 2014

LOL 8.5 hours SOT? Maybe provide a screenshot...

4. redmd

Posts: 1939; Member since: Oct 26, 2011

PA please review the Galaxy A9. SD 652+4000 mAh battery.

5. Kary1

Posts: 300; Member since: Jun 26, 2015

Why are no LG devices on the list?

7. ruben_2s

Posts: 9; Member since: Jun 10, 2015

I don't believe a word. It makes nosense. Galaxy s6 edge has 50mah more of battery than s6, and in your 'tests' battery life is ONE HOUR longer. Given that, I do not trust your tests anymore. Let's wait for gsmarena, which is an imparcial and reliable source.

11. ruben_2s

Posts: 9; Member since: Jun 10, 2015

Look (from reddit): 8 hours of screen with 1day 6 hours of use.

33. maxha97

Posts: 100; Member since: Aug 28, 2012

9. legiloca

Posts: 1676; Member since: Nov 11, 2014

Oh s**t... What just happened Sammy :(

21. dimas

Posts: 3374; Member since: Jul 22, 2014

Don't jump to conclusions. There are still other techsites and if others say that s7's batteries last longer than what pa's writing, then these whole s7 battery issue articles will be forgotten.

12. johanbiff

Posts: 415; Member since: Mar 31, 2015

this is total BS from PA`s part..please re-do this test and correct the iphone scores since they also are total BS!

14. Arschsalat

Posts: 158; Member since: Feb 29, 2016

TechnoBuffalo says it´s best battery he ever tested in last few years:

22. kent-gaga

Posts: 609; Member since: Apr 10, 2012

PA reviewed the Galaxy s7 Edge, and TB reviewed the Galaxy S7. can't you see the different?

25. Arschsalat

Posts: 158; Member since: Feb 29, 2016

They say the same crap about both phones

28. kent-gaga

Posts: 609; Member since: Apr 10, 2012

still, your comment is invalid

59. yoosufmuneer

Posts: 1518; Member since: Feb 14, 2015

Check their S7 Edge review too. Ron Mentioned that S7 Edge has fantastic battery life.

Latest Stories

This copy is for your personal, non-commercial use only. You can order presentation-ready copies for distribution to your colleagues, clients or customers at or use the Reprints & Permissions tool that appears at the bottom of each web page. Visit for samples and additional information.