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The Galaxy S7 edge stalls, delivers middling battery longevity

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.

The Galaxy S7 edge was done in just 7 hours and 18 minutes—much sooner than we were hoping

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. 

Samsung Galaxy S7 edge battery life vs the competition

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

84 Comments
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posted on 08 Mar 2016, 08:26 3

2. Johnnokia (Posts: 1078; Member since: 27 May 2012)


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

posted on 08 Mar 2016, 08:36 3

8. johanbiff (Posts: 389; Member since: 31 Mar 2015)


it will :) read on xda

posted on 08 Mar 2016, 08:37 2

10. Cicero (Posts: 863; Member since: 22 Jan 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".

posted on 08 Mar 2016, 08:39

13. johanbiff (Posts: 389; Member since: 31 Mar 2015)


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

posted on 08 Mar 2016, 08:47 6

18. Cicero (Posts: 863; Member since: 22 Jan 2014)


Exynos is inside mine. S7 Edge Europe model.

posted on 08 Mar 2016, 20:27

100. kamejoko (Posts: 201; Member since: 10 Nov 2011)


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

posted on 08 Mar 2016, 08:43

15. kent-gaga (Posts: 498; Member since: 10 Apr 2012)


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

posted on 08 Mar 2016, 08:50

23. Cicero (Posts: 863; Member since: 22 Jan 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?

posted on 08 Mar 2016, 08:54 1

30. kent-gaga (Posts: 498; Member since: 10 Apr 2012)


i was replying to Johnnokia, not you

posted on 08 Mar 2016, 08:57 6

32. natypes (Posts: 1086; Member since: 02 Feb 2015)


This isn't grindr stfu

posted on 08 Mar 2016, 09:43 4

54. kent-gaga (Posts: 498; Member since: 10 Apr 2012)


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

posted on 08 Mar 2016, 09:33 2

50. Rafishant (Posts: 232; Member since: 13 Oct 2015)


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

posted on 08 Mar 2016, 20:55

101. kent-gaga (Posts: 498; Member since: 10 Apr 2012)


well maybe I am?

posted on 08 Mar 2016, 11:46

68. thegeneral7010 (Posts: 351; Member since: 10 Dec 2014)


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

posted on 08 Mar 2016, 08:29 6

3. tonyv (Posts: 54; Member since: 12 Mar 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.

posted on 08 Mar 2016, 09:31 1

49. Hoggington (Posts: 192; Member since: 23 Feb 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.

posted on 08 Mar 2016, 12:44 1

75. Zack_2014 (Posts: 378; Member since: 25 Mar 2014)


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

posted on 08 Mar 2016, 08:30 1

4. redmd (Posts: 1264; Member since: 26 Oct 2011)


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

posted on 08 Mar 2016, 08:31

5. Kary1 (Posts: 300; Member since: 26 Jun 2015)


Why are no LG devices on the list?

posted on 08 Mar 2016, 08:34 10

7. ruben_2s (Posts: 9; Member since: 10 Jun 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.

posted on 08 Mar 2016, 08:37 1

11. ruben_2s (Posts: 9; Member since: 10 Jun 2015)


Look (from reddit):
imgur.com/a/geRWB

8 hours of screen with 1day 6 hours of use.

posted on 08 Mar 2016, 08:57 6

33. maxha97 (Posts: 93; Member since: 28 Aug 2012)


http://www.anandtech.com/show/10120/the-samsung-galaxy-s7-review/2

posted on 08 Mar 2016, 08:36 2

9. legiloca (Posts: 1373; Member since: 11 Nov 2014)


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

posted on 08 Mar 2016, 08:49 4

21. dimas (Posts: 2044; Member since: 22 Jul 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.

posted on 08 Mar 2016, 08:37 3

12. johanbiff (Posts: 389; Member since: 31 Mar 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!

posted on 08 Mar 2016, 08:41 13

14. Arschsalat (banned) (Posts: 158; Member since: 29 Feb 2016)


TechnoBuffalo says it´s best battery he ever tested in last few years:https://www.youtube.com/watch?v=taoiH3bNfwg

posted on 08 Mar 2016, 08:49 2

22. kent-gaga (Posts: 498; Member since: 10 Apr 2012)


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

posted on 08 Mar 2016, 08:52 5

25. Arschsalat (banned) (Posts: 158; Member since: 29 Feb 2016)


They say the same crap about both phones

posted on 08 Mar 2016, 08:53 1

28. kent-gaga (Posts: 498; Member since: 10 Apr 2012)


still, your comment is invalid

posted on 08 Mar 2016, 09:53 5

59. yoosufmuneer (Posts: 1498; Member since: 14 Feb 2015)


Check their S7 Edge review too.https://www.youtube.com/watch?v=fRzHgW9d2EU

Ron Mentioned that S7 Edge has fantastic battery life.

posted on 08 Mar 2016, 08:51

24. dimas (Posts: 2044; Member since: 22 Jul 2014)


They're praising s7? I'm surprised, I thought technobuffalo was all apple cheering squad that's why I stopped watching their youtube channel.

posted on 08 Mar 2016, 16:14 1

91. Macready (Posts: 906; Member since: 08 Dec 2014)


Tweakers.net just tested the Exynos S7 and S7 edge. For browsing @ 250 nits the battery on the S7 lasted 18% longer than the S6, which is exactly in line with the battery increase. For video, the increase was actually 28%, much more than the battery increase.

So either the SD820 is very inefficient, or PA's test is influenced by something else.

posted on 08 Mar 2016, 08:44 3

16. chavapa (Posts: 6; Member since: 05 Feb 2015)


PA testing methodology is flawed. Faster SOC's are at a disadvantage as they are made to do more work over any given time period. Check the Anandtech review. Battery life is awesome.

posted on 08 Mar 2016, 09:49

57. Chris.P (Posts: 557; Member since: 27 Jun 2013)


How do you even figure, lol?

posted on 08 Mar 2016, 08:47

17. sobit81 (Posts: 33; Member since: 18 Apr 2015)


What a surprise!!!!!

posted on 08 Mar 2016, 08:47

19. pandabear (Posts: 4; Member since: 08 Mar 2016)


Hey PhoneArena. Just from logic, there has to be something wonky in your battery test. Maybe check your custom web-script that you use to run these test for bugs or re-calibrate it. I'm thinking that your web-script may have kicked-in the higher clock speed of the 4-cores rather than using the lower clock speeds of the lower cores.

posted on 08 Mar 2016, 08:52 1

26. kent-gaga (Posts: 498; Member since: 10 Apr 2012)


the snapdragon 820 only has 4 cores...

posted on 08 Mar 2016, 09:13

42. pandabear (Posts: 4; Member since: 08 Mar 2016)


Oh okay.

Still seems off. Hopefully they'll look into it and make sure their custom test is working as it should.

posted on 08 Mar 2016, 14:07

82. marorun (Posts: 3428; Member since: 30 Mar 2015)


Same thing he said but instead of 4 lets say higher core running instead of the two lower core.

posted on 08 Mar 2016, 20:58

102. kent-gaga (Posts: 498; Member since: 10 Apr 2012)


that's more of Qualcomm's problem
why can't the Soc understand that those tasks only need little power to run smoothly when it should?

posted on 08 Mar 2016, 08:48

20. TechlineHD (Posts: 6; Member since: 13 Apr 2015)


Exynos variant has a much better battery life

posted on 08 Mar 2016, 14:08

83. marorun (Posts: 3428; Member since: 30 Mar 2015)


Based on review i saw on other website nope
Only PA crappy biased test made it apear this way at least for now as when the exynos will be tested ( if they test it ) they will make it look bad as well..

posted on 08 Mar 2016, 08:53

29. vladimir86 (Posts: 85; Member since: 15 Oct 2011)


I think its all because software its not optimized waiting for a custum room with a solid kelner .

posted on 08 Mar 2016, 08:56 12

31. Ordinary (Posts: 2271; Member since: 23 Apr 2015)


This is hilarious. When iPhone 6s was released almost all reviewers said that it had worse battery life than predecessor but on PA it was much better. Now when S7 is out almost all reviewers are saying that it has much better battery life than predecessor but on PA its worse.

It is a mystery.

posted on 08 Mar 2016, 09:08 5

40. fyah_king (Posts: 375; Member since: 22 Jul 2013)


I have both of these devices. There's something wrong with their battery test, because I can get 6-7hrs of SOTwith my s7 edge. While my edge + can barely get a little over 5hrs of SOT, so idk what's wrong with their 7 edge.

posted on 08 Mar 2016, 12:46

76. Zack_2014 (Posts: 378; Member since: 25 Mar 2014)


S6 Edge no way goes past 4 hours SOT unless your only doing light stuff

posted on 08 Mar 2016, 12:53

77. maherk (Posts: 3539; Member since: 10 Feb 2012)


He clearly said Edge+, not the regular S6 Edge

posted on 08 Mar 2016, 09:06 6

38. jkforce (Posts: 1; Member since: 08 Mar 2016)


Phonearena, please review your battery test logic and see if there are any errors. As an owner of note 5, edge 6 plus, edge 7, I can easily tell you your data is flawed. Check other website forums of real users' data on battery. It is very much different than your test results and I am not even gonna go to Iphone.

posted on 08 Mar 2016, 09:06 8

39. tyrionTheWise (unregistered)


So PA proved their test is crap. As the anandtech battery test just peed over the test results from PA.

posted on 08 Mar 2016, 09:14 5

43. Norris (Posts: 121; Member since: 26 Jun 2015)


This is the only website where I've read S7's battery is life is bad.Maybe you need to change the way you test.

posted on 08 Mar 2016, 09:22

45. Zylam (Posts: 676; Member since: 20 Oct 2010)


LOLOLOL wow so much pain in the comments section.

posted on 08 Mar 2016, 09:29 1

46. Chuck007 (Posts: 1090; Member since: 02 Mar 2014)


Checked a couple more reviews and the battery life numbers seem to be all over the place?

Engadget says the GS7 lasts significantly longer than the GS7 Edge (roughly the same as what Phonearena is reporting here) while Anandtech, Techno Buffalo, and Android Authority all claim the battery life on the GS7 Edge is way more superb compared to any other Samsung flagship.

Maybe it's a software issue? Or problems plaguing a particular batch of GS7s?

posted on 08 Mar 2016, 09:30 1

48. JMartin22 (Posts: 1966; Member since: 30 Apr 2013)


Test it again or test a different unit. Something clearly isn't right here. It's using newer, more optimized software than the Note 5 and S6 edge+ and it has almost the same exact AMOLED panel as them as well. It's also using a noticeably bigger battery.

posted on 08 Mar 2016, 09:34

51. xondk (Posts: 1290; Member since: 25 Mar 2014)


Hrm, wasn't there a problem with android 6+ that caused battery to be drained heavily but there was a fix? maybe this is the issue?

posted on 08 Mar 2016, 09:37

53. xondk (Posts: 1290; Member since: 25 Mar 2014)


Yup, several articles on various sites indicate that this is a problem with latest android 6.0.1

posted on 08 Mar 2016, 09:34 1

52. bubbadoes (Posts: 837; Member since: 03 May 2012)


sammy sheep don't care. they are fascinated by 4 gigs of ram and 820 specs, always on display, etc. and wonder why battery life is dismal.

posted on 08 Mar 2016, 09:52

58. KRPT55 (Posts: 10; Member since: 28 Feb 2016)


Which Galaxy S7E model are you using? I spoke to a Samsung rep who conformed there's an issue with the SD820 models specifically t mobile concerning battery. This will be resolved after an update. Please try to get hold of exynos model in the mean time and test again.

posted on 08 Mar 2016, 10:36 4

62. Tarox (Posts: 104; Member since: 17 Feb 2015)


phonearena. This time you really f**ked up....

Move a step back and look at your results. They make absolutely ZERO sense!

Also if you look at all other reports. If 99% say battery life is awesome and you say it's awefull. Take it as a hint to countercheck the things

posted on 08 Mar 2016, 10:50 3

63. HighOnAndroidFTW (Posts: 185; Member since: 26 Apr 2015)


I've had my s7 edge since March 2nd. And I can say it has the best battery life I've seen in s whole on ANY device. Which includes. (Note 2,3,4,5/ s4,s5/motox OG/I phone 4s,5,5s,6)

I'm very happy with it. Mine is SD820 on Tmo. I'll go through a whole day at work 10hr day. Unplug from car charger at 100% at 9a.m. be on the LTE signal all day no WiFi. 3.25hrs SOT and leave at 730pm with 40% left. That's with, FB, YouTube, Twitch streams, chrome+Internet browser, G+, phone calls and text and some tech apps.

That's damn good if you ask me

posted on 08 Mar 2016, 11:00

65. Loubielou (Posts: 507; Member since: 11 Jul 2012)


Samsung better get some new software ready if these new phones have such weak batterylife,the batterylife on the Galaxy S6 Edge Plus is really amazing and was expecting the Galaxy S7 models to have much better batterylife,so instead of jumping in straight away i will wait to the prices start to drop and some new software update to improve the battery on the S7 models

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