Galaxy S5 scores amazing on our battery life test: the longest-lasting flagship has the endurance of a tablet

Are you sitting down? You'd better be, as we have a new king of our battery life test, and it is none other than Samsung's Galaxy S5. It managed the whopping 7 hours and 38 minutes of screen-on time in our grueling battery endurance run, which is the best result we've seen so far from any flagship. It actually stopped just a few minutes shy of the Xperia C, or it would have been the phone with the longest battery life we've ever tested. For comparison, it closes in on the most enduring device we've measured - the Galaxy NotePROiPad Air, and iPad mini 2, but those are tablets, with the respective gigantic battery capacities.

During the phone's unveiling event, Samsung promised up to 10 hours of Internet browsing, 12 hours of HD movie watching, or 21 hours of 3G talk time on a charge, and we can attest that the Galaxy S5 meets and exceeds those promises. Manufacturers, as well as most third party services, measure battery life with the screens set at about 150 nits of brightness, while our routine script is run at 200 nits, and features mixed browsing and media display patterns. Those include a lot of white background, too, which AMOLED screens draw the most power to display, and still the S5 managed to break the flagship record. How has Samsung done this, though?

The notable thing with the Galaxy S5 is that it breaks the flagship record with "only" a 2800 mAh battery, surpassing even phablets with their huge 3000+ mAh juicers. Thus, there must be more at play than capacity alone here, and Samsung might have utilized additional battery-saving techniques for the first time in the S5.

Remember LucidLogix's battery-saving optimizations that we wrote about not long ago? At the time we mentioned that Samsung has inked a deal for implementing the PowerXtend battery-saving algorithms in a yet-unknown device. Well, that mystery handset turns out to be none other than the Galaxy S5 flagship. The PowerXtend suite comprises of three proprietary algorithms, called WebXtend, NavXtend, and GameXtend. All of them rely on better hardware management and load-balancing that are supposed to extend the battery life on Android devices. GameXtend is the most interesting here, as it allows up to 50% better battery longevity, while NavXtend and WebXtend promise up to 25% savings. Despite that these are software algorithms, they have to be implemented at a system level by the manufacturer itself, which is precisely what Samsung has done with the S5. In that case, Lucid's PowerXtend implementation might be the culprit behind the jaw-dropping battery life stats that Samsung promises for the Galaxy S5, and which we can now confirm to be entirely true, as you can see in the graph below. We only hope that other Android phone makers will adopt the tech, too, as battery life is the thing users want to see improved in their smartphones the most.

We measure battery life by running a custom web-script, designed to replicate the power consumption of typical real-life usage. All devices that go through the test have their displays set at 200-nit brightness.

hours Higher is better
Motorola Moto G
7h 12 min (Good)
Google Nexus 5
4h 50 min (Poor)
HTC One max
7h 27 min (Good)
8h 6 min (Excellent)
Alcatel OneTouch Hero
8h 11 min (Excellent)
6h 48 min (Average)
Sony Xperia Z1
4h 43 min (Poor)
HTC One (M8)
7h 12 min (Good)
Sony Xperia C
8h 44 min (Excellent)
Apple iPad Air
8h 38 min (Excellent)
Samsung Galaxy NotePRO 12.2
8h 58 min (Excellent)
Samsung Galaxy S5
7h 38 min (Good)

Story timeline

Related phones

Galaxy S5
  • Display 5.1" 1080 x 1920 pixels
  • Camera 16 MP / 2.1 MP front
  • Processor Qualcomm Snapdragon 801, Quad-core, 2500 MHz
  • Storage 32 GB + microSDXC
  • Battery 2800 mAh(21h 3G talk time)



1. CanYouSeeTheLight

Posts: 1122; Member since: Jul 05, 2012

Excellent endurance, great optimization of that 2800 mAh battery Samsung!

3. rihel_95

Posts: 305; Member since: Mar 21, 2012

Why no LG G flex, PA?

7. pwnarena

Posts: 1129; Member since: Feb 15, 2013

they can't afford the phone or it's not available in their area.

25. StraightEdgeNexus

Posts: 3689; Member since: Feb 14, 2014

The beast unleashes.

96. tusshharish

Posts: 342; Member since: Oct 23, 2012

Why no nokia lumia 1520 then.... I bait it is cheaper than Samsung galaxy s5......

152. sgodsell

Posts: 7195; Member since: Mar 16, 2013

The Samsung Note 3 is not up there as well. I guess its not listed because the note 3 is a phablet with a really big battery.

97. buccob

Posts: 2963; Member since: Jun 19, 2012

Well how about the Z1 Compact then? They already did the full review months ago... This battery Test was great news, but they skip selectively some handsets as if they don't want to make them look good on purpose...

66. Tizen007

Posts: 575; Member since: Jan 07, 2014

If the Sony Z2 Tab has a life of 6h and 54min then that means the Sony Z2 smartphone will likely have a lower battery life then that... I picked up my S5 today and it's AWESOME. People who still thinks the phone has poor design and quality build; go see the phone yourself ! The grey line that goes around the phone makes it look premium unlike the official render. It feels really good in your hand, and the "band aid" back is not true. It rather feels like they used the premium material from luxury cars for the back ! The phone has amazing display, battery, FEATURES, camera, and useful gimmicks! I highly recommend the phone!!!

77. Arte-8800

Posts: 4562; Member since: Mar 13, 2014

its still PLASTIC cheap low plastic, there is no sign of premuim touch to it when you hold it or touch the phone m8 is pure class of its own with sumptous eptimome

85. The13thKing

Posts: 849; Member since: Feb 26, 2014

yet, no one would buy it, as I read in an article here 2 weeks ago that sales are weak. wow, why?

100. tedkord

Posts: 17303; Member since: Jun 17, 2009

Sales were weak two weeks ago because it wasn't on sale two weeks ago.

103. Tizen007

Posts: 575; Member since: Jan 07, 2014

When I'm holding a Sony phone it feels and looks like a glass box; my senses have a hard time to tell if the material is actually premium or not. For me this is because the feeling on the side of your palm when you are holding a Sony phone is very unpleasant. + It's heavy = VERY UNPLEASANT feeling. When I'm holding a GS5 it feels really good, lighter than most flagships, and the design feels more premium when you're actually holding the phone. The design render of the Sony Z2 is beautiful but when you are actually holding a Sony phone you will soon realize that the feeling in your hand is very unpleasant. The GS5 is the exact opposite : Horrible render but premium feeling and design when you're actually holding it. Plus much much better user interface (Touchwiz) than Sony's. I HIGHLY recommend the Samsung Galaxy S5 for the people who are comparing this device with other phones.

134. jeeta444

Posts: 154; Member since: Mar 24, 2014

stop lying man...!! you are misleading the people... we all know samsung devices are plastic soap box....and if your senses take hard time to believe if the material in Z2 is premium or not , it means you need an instant check up....or either you are biassed..!!

141. refillable

Posts: 1071; Member since: Mar 10, 2014

Guys, don't get mislead by this guy. These things are just pure personal preference. Some people prefer beautiful design more than ergonomic designs. Some prefer the other way around. We know S5 is comfortable to hold, but don't ever use your personal experience as it was everything to decide about.

108. Slammer

Posts: 1515; Member since: Jun 03, 2010

You are so wrong about this phone. All you have done is mimic Steve Jobs' sound bites with no actual valid thought process. You constantly jump into this site and replay the same message over and over and over again thinking that your opinion is going to change the entire world's outlook. Is everything in your house metal? Toilet? Mattress? Dinner ware? Curtains? Do you feel the corvette zr1 is cheap because it is not made of metal? Lamborghinis? Really. Your argument is negated on the principle that you limit yourself to the same speech pattern. I happened to purchase my S5 today and regardless of polycrabonate shell, this phone doesn't feel all that cheap at all. The looks are much more stunning than tech sites were reporting and the mere fact that a heavily used electronic device has a removable battery is a huge plus. And now that I have a case on it, it really looks no different than my friends HTC ONE. In fact, he is blown away by my S5, that his wife is getting it next week. He is getting his in a month. If you want to validate any kind of respectable relevancy, please ascend to a more dignified script when trying to compare things. The "It's cheap plastic" quote by you is old and tired. John B.

142. zebraman

Posts: 59; Member since: Sep 11, 2013

i got my S5 the other day for me and my wife the phone is awesome and it looks great too. personally i dont like the look of the sony phones. they dont look premium at all its just a waterproof rectangle with a button that sticks out the side.

138. RuiBacelar

Posts: 153; Member since: Feb 25, 2014

It's like putting make-up in a chewbacca face. Materials before Looks. But still, battery seems impressive. Waiting to see how the Z2 behaves, btw, I can get 2 days normal use with Z1.

71. LGisgood

Posts: 833; Member since: Jun 23, 2012

LG G2 has better BATTERY IN TALK TIME AND BROWSING than S5! see GsmArena.

84. tech2

Posts: 3487; Member since: Oct 26, 2012

Why don't you tell us the overall battery life of G2 and S5 as well from gsmarena ? Let me tell you in case you missed it LG G2: 62 hours (with 3200mah) GS5: 72 hours (with 2800mah) Also, these overall battery life is what general users care as no one talks or browses for 7-8 hours straight.

86. AfterShock

Posts: 4146; Member since: Nov 02, 2012

Yeah odd how the G2 smokes the S5 across the board in tests but was rated lesser. First post on that thread at gsmarena, the poster calls out them stats as bogus too.

93. tech2

Posts: 3487; Member since: Oct 26, 2012

Dude, its simple logic. G2 has poor stand-by time in comparison to gs5. Hence, the difference. Gsmarena and Anandtech are probably the most reliable names in this game.

132. AfterShock

Posts: 4146; Member since: Nov 02, 2012

So really, stand by is better. That kind of seems like the only thing. At any rate, it's better then many. Grats SS.

18. jdoee100

Posts: 334; Member since: Jun 04, 2013

S5 has one of the best screens and cameras, and now has the best battery life. Enough said.

41. akki20892

Posts: 3902; Member since: Feb 04, 2013

50. tomislav96

Posts: 8; Member since: Mar 27, 2014

best chip? while having best battery, thats wonderfull :D

56. Arte-8800

Posts: 4562; Member since: Mar 13, 2014

no its not the best chip,,, the TEGRA4 and Exyonos 5420 is much powerfull and has more torque than the S801 the best chip is used by apple iphone5s which uses an ARM A57 A15 CORTEX, not this over clocked A9 CORTEX

116. true1984

Posts: 864; Member since: May 23, 2012

the exynos only does well on benchmarks. in everyday usage, its terrible. and tegra? honestly nvidia is a joke when it comes to mobile processors. a bad one

151. The-Sailor-Man

Posts: 1095; Member since: Mar 25, 2014

This ”best chip" used by Apple, could not start even the Note 3, and what about S-pen and the multi-window? :-)

40. anirudhshirsat97

Posts: 408; Member since: May 24, 2011

Yes! That's what. Even the m8 provides great battery life. We can clearly see that just a bulky battery wont mean everything *cough*z1*cough*. Software optimisations and other factors like chipset, display and hardware optimisations matter alot also. S5 provides the best combo without giving up on specs at all. Just want to see how the z 2 manages, but knowing sony...meh.

44. walnuttt

Posts: 153; Member since: Apr 11, 2014

Whoever haters saying that S5 sucks are the ones who really sucks, eat your words now haters with your crappy phones.

* Some comments have been hidden, because they don't meet the discussions rules.

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