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

Story timeline

Related phones

Galaxy S5
  • Display 5.1 inches
    1920 x 1080 pixels
  • Camera 16 MP (Single camera)
    2.1 MP front
  • Hardware Qualcomm Snapdragon 801, 2GB RAM
  • Storage 32GB, microSDXC
  • Battery 2800 mAh
  • OS Android 6.0 Marshmallow
    Samsung TouchWiz UI



150. NerdWithController

Posts: 2; Member since: Apr 19, 2014

The Note 3 is still a flagship. Its in a league of its own. The Oppo Find7, Z2 and Razr are the only phones that can even compete. People shouldn't be talking crap about Samsung. When you have a processor with a higher clock speed than the computer that you are using right now, you have to cut a few corners to keep it at a reasonable price. I do have a Note 3, and I wish it had more premium materials, but with such amazing performance you can't realalisticly make a phone that has all the premium materials and is consumer affordable. Yes, the M8 is the best build phone out there, and has pretty good specs, but look at the camera. Look at the battery. You just simply can't find a phone with the absolute best specs and a good build.

147. undulose

Posts: 6; Member since: Jan 04, 2014

This is a big bummer! They didn't have tests for the Nokia Lumia 1520 nor the LG G Flex which scored great on GSMArena's battery endurance test. What a very biased review.

146. undulose

Posts: 6; Member since: Jan 04, 2014

This is a big bummer! They didn't have tests for the Nokia Lumia 1520 nor the LG G Flex which scored great on GSMArena's battery endurance test. What a very biased review.

144. MobileGuru

Posts: 82; Member since: Jan 18, 2014

I have to say im impressed by Samsung!

143. dragontrumpetare

Posts: 4; Member since: Apr 14, 2014

Mm... where is Sony Xperia Z2 or Sony Xperia Z1 compact?

140. egainer

Posts: 11; Member since: Mar 21, 2014

Why no comparison to motorola droid maxx with 3500 mAh battery?

139. sonisoe

Posts: 440; Member since: May 06, 2009

so why holding back, if you can still pack 3000mah in or more, plus the battery algorithms, would last even longer right

136. medicci37

Posts: 1361; Member since: Nov 19, 2011

+1 to Phone Arena for the add a phone option on this article

122. someones4

Posts: 628; Member since: Sep 16, 2012

I really wish that samsung will include lucidlogic's algorithm in an update for the note 3. It is possible to do so right?

121. Taters

Posts: 6474; Member since: Jan 28, 2013

Suck T C got destroyed by Samsung again. Good times!

114. joseram695

Posts: 79; Member since: May 28, 2012

Thats great! Cant wait for my note 4 then, should have just as good if not better endurance, that is depending on the resoultion tho if they chose to go higher then 1080p

113. gigaraga

Posts: 1454; Member since: Mar 29, 2013

Galaxy S5 best phone ever! I don't see any other 2014 Flagships that are this good let alone the 2013 ones!

109. Astoni

Posts: 649; Member since: Sep 28, 2013

This is actually kinda funny, When s5 has better batterytime in PH's own Scripted test you question it directly cause samsung can't be better at anything but when HTC, LG or anyother brand has a good time you don't even care to take it into question. There is alot of hate built up against samsung :p. Imo as long as any battery on a phone lasts 2x longer than my Z1 i Would be extremely happy. On their test it only lasts 4h but i'm not complaining since i could easily go full usage and still have 20% left after a full day out.

99. JMartin22

Posts: 2422; Member since: Apr 30, 2013

I find it funny how the trolls come strolling along with their little convenience anecdotes and experiences with the S5 or comparative to the phone itself just to make a point that the article is invalid.

92. milos

Posts: 68; Member since: Oct 29, 2012

just got S5 last night. Amazing battery life. I took so many videos and photos during one straight hour, 5 shorter phone calls, Mobile data constantly on. Watched all the videos and photos few times. Surfed the web, downloaded and installed bunch of apps. Battery is at 77% after 4-1/2h. i'm supper happy. I'm not a big fan of plugging it to charge. It takes extra effort to aim at USB3.0 connector. But i guess its necessary for offloading 4k videos.

65. Nickmfnjackson

Posts: 101; Member since: Jan 21, 2010

Although I just got my s5 yesterday and I have not had much time to use it, the rate that the battery drains is exceptionally slow. I can't say how true this study is, but my personal experience has been astounding. The s5 also has a special charger. My phone charged from 68% to 100% in about 30 minutes.

64. wilsong17 unregistered

i guess the idiots forgot about the ultra power saving mode

60. Sadiq

Posts: 6; Member since: Jan 17, 2014

Put this against Lumia 1520 n see the results :p

42. dmn666

Posts: 244; Member since: Oct 19, 2011

Samsung is cheating as usual with a fake HD pentile displa in battery tests. And PA overlooked that as usual. It's funny.

126. The13thKing

Posts: 849; Member since: Feb 26, 2014

Hahahahaha. Life is hard. So hard that samsung eats all your market share and the companies you love, the true companies that build em like the good old days get sold or bankrupt. This is funny.

128. StraightEdgeNexus

Posts: 3689; Member since: Feb 14, 2014

LMAOO He's nowhere to be found. Talking about pentile@432 ppi rofl.

130. The13thKing

Posts: 849; Member since: Feb 26, 2014

Lol, he's just fired up, wherever you go or read people praise the S5, he found it so hard he went into a laughable hysteria and unleashed hilarious comments.

39. sks1969

Posts: 108; Member since: Mar 04, 2012

As always, You get 8 hours on screen time, but still it lasts only a day and half with huge batteries. lousy standby time a Lumia 1020 or an IOS device will last a week on standby with half the maH batteries. I don't know any Android that does beyond a week on standby time BTW I have a Lumia 610 with me, It goes a month on standby with wifi always on. I don't think any smart phone can beat it.

131. bestmvno

Posts: 251; Member since: Mar 07, 2014

Then you've never used an Android and are talking out of your behind.

34. antonioli

Posts: 200; Member since: Sep 08, 2013

Different from gsmarena test..........It's really good, but not that miraculous device. The same for HTC One M8.

33. networkdood

Posts: 6330; Member since: Mar 31, 2010

With the right kernel, you can easily improve battery consumption on most Android devuces by 50%...see XDA for more details....

61. Arte-8800

Posts: 4562; Member since: Mar 13, 2014

true just use the right kernel with a rooted s5 and change the settings to power save, where you will get 25% more battery than standard

29. XperiaX

Posts: 66; Member since: Feb 20, 2014

Xperia Z1 compact f.t.w... ^o^

28. kurojack

Posts: 1; Member since: Apr 12, 2014

I don't understand what's wrong with my phone then. Just received my S5 yesterday and am experiencing terrible battery life. On a full charge it will be at 80% within two hours...on idle! I had to recharge it twice yesterday. Just came from an Evo 4G LTE and I am running basically the same apps and settings. I'll give it a few days and see what happens. I'm sure I'll have to wait to see if others are experiencing this problem.

31. AfterShock

Posts: 4147; Member since: Nov 02, 2012

Let it finish syncing up an settle in a bit, (Couple three days) then judge it further. Media is usual suspect, syncing up I mean.

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

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.
FCC OKs Cingular's purchase of AT&T Wireless