Battery Life

At this point, battery life is one of the number one priorities for a phone. While in 2013 our primary tests consisted of the web browsing test and video playback tests, we've expanded our suite to include Basemark OS II and GFXBench to simulate intensive general usage and gaming, respectively. For all of our tests in which the display is on, we calibrate the brightness of full white to be 200 nits in order to standardize and attempt to control for extraneous variables as much as possible. While this may seem arbitrary, it's important to do so to draw real conclusions about which phone has better battery life. 200 nits on a phone can be as low as 50% and as high as 90%, so setting a standardized brightness percentage would not be an effective method of controlling for display brightness. With that in mind, let's get to the battery life tests.

Web Browsing Battery Life (WiFi)

Here, we see that the OnePlus One takes the number three spot for battery life amongst phones and phablets. This is definitely a great result to start with, and is a solid 20% higher than the One (M8). However, the Huawei Ascend Mate 2 continues to hold its position with a long lead over just about anything else available in the market today.

Web Browsing Battery Life (4G LTE)

We can see a similar story in LTE web browsing battery life. However, the OnePlus One manages to close up the lead that the Ascend Mate 2 holds in WiFi browsing. It's likely that the 28nm LP process and lack of envelope tracker is responsible for closing the gap in this regard. It's interesting to see how the iPhone 6 Plus trails behind the OnePlus One here, but it's likely that this difference is due to the fact that the iPhone 6 Plus has an off-die modem compared to the OnePlus One's on-die modem.

BaseMark OS II Battery Life

BaseMark OS II Battery Score

White battery life tends to fall towards the bottom here, we can see that the reality is that the OnePlus One performs quite well, which indicates that there's relatively little throttling to speak of and that the OnePlus One is simply doing well by sustaining high levels of performance.

GFXBench 3.0 Battery Life

GFXBench 3.0 Performance Degradation

We see the same story in the GFXBench rundown. The OnePlus One manages to set a new record for final run FPS among phones and phablets, although battery life is near the bottom of the pack. It seems that if there's any one reason for the escalating display size wars, it is to increase battery life. While by no means a clear order, we can see that the larger battery more than compensates for the larger display of the OnePlus One. This makes sense, as a phone should have a fixed size circuit board. Therefore, by increasing display size the circuit boards become smaller relative to the rest of the phone, and all of the area opened up by increasing the size of the phone can be taken up by the battery. Overall, the OnePlus One is almost as good as it gets for battery life in a phone, with excellent sustained performance under load.

Charge Time

To really have a holistic understanding of battery life, we must also take a look at charge time. While battery life can be the only determinant of mobility, in cases where usage is heavy enough that the battery or multiple batteries have to be charged, charge time can become incredibly important. To this end, OnePlus includes a 5V, 2.1A charger in the box to quickly charge the rather large 11.78 WHr battery.

Charge Time

Somewhat surprisingly, the OnePlus One does a great job in this test, coming quite close to other devices with QC 2.0 fast chargers like the Galaxy Note 4 which is definitely good to see. Overall, this makes the OnePlus One one of the best phablets on the market for battery life.

Display Camera UX
Comments Locked

148 Comments

View All Comments

  • wyewye - Thursday, November 20, 2014 - link

    An article beginning with "There's really not much else to be said" ...

    Why do you keep this smug asshole on your team, Anand? Are you really looking to drive away viewers?

    Regarding the OnePlus One, this config would have been decent in mid 2013. Coming in late 2014, this phone is not only not a flagship killer but average at best.
  • Harry_Wild - Thursday, November 20, 2014 - link

    "Reception, at least for T-Mobile US' band 4/AWS LTE is noticeably worse than most devices that I've tried. "

    I'm a T-Mobile user; and this above result sure makes me uneasy to even consider it as a purchase! Hopefully, One Plus, can find some way to fix the LTE for T-Mobile so it can be more clear!
  • Munna2002 - Friday, November 21, 2014 - link

    I'm a T Mobile user and haven't had issues with the OPO reception in the NYC metro area. LTE speeds are as fast as those observed with a Samsung S3 and S5.
  • littlebitstrouds - Thursday, November 20, 2014 - link

    The reason this phone is so popular isn't that it matches up perfectly with flagships, even though it does it's best job, but rather that for $350 off contract it allows you to finally have a near flagship phone on non-contract services without breaking your bank. I went from an EVO LTE with $99 a month from sprint, to $50 a month with t-mobile non contract. $50 savings a month, and I don't have to use last year's gear while doing it.
  • BabelHuber - Thursday, November 20, 2014 - link

    I do not understand why CM is criticized because of its options:

    I like them and I use them - for me a stock Android phone has too few options. I need to use Xposed/ Gravitybox to get the options back, otherwise I can't stand it.

    Also I do not understand what is wrong with CM's Theme Engine: It works well and there are lots of themes I really like.
    Of course there are also themes which do not work correctly one way or the other, but that's not the Theme Engine's fault.

    So I would see it exactly the other way round: CM adds sensible features to Android. Of course there are also lots of settings in CM which I don't use, like the profiles.
    But why should I be embarassed about this? I use what I want and I ignore the rest. That's what options are for.

    Also I didn't have difficulties getting used to CM at all.

    So I think from the software side Joshua Ho got it wrong.

    If I would be malicious I'd say it's no wonder that the Anandtech staff likes iOS so much, because they seem to be too stupid to use a fully-featured OS :-)
  • srkelley - Thursday, November 20, 2014 - link

    It's not that they're dumb, far from it, but that the presentation of the options can leave a lot to be desired. Joshua Ho points out the number, but the number of options alone isn't the real issue. It's too number made available to people that require them to either search outside of the ui to understand or to learn what they do through trial and error.

    I'm perfectly fine with that, I have a OPO (https://plus.google.com/+ShirondaleKelley/posts). Still, such a thing must be cited. Even power users just want to be users sometimes. Maybe they just want to exert their power through workflows instead of configuration. Maybe they want to be able to recommended a good phone to friends without becoming their personal and default support option. Having such a thing the review reminds you of what the norm is and allows for a much more comprehensive review. It's constructive criticism, not scalding or venomous criticism.

    Since we're all power users here, maybe we would still get to phone for our friends but decide to install miui or preconfigure certain items. A review like this certainly helps with the decision of what to recommend and how to handle it.
  • BabelHuber - Friday, November 21, 2014 - link

    In my experience, people like CM's options, even the 'regular' users.

    My GF uses CM11 on her Samsung Galaxy Tab 8.4 - I had to install it because she hates the Samsung-UI the device came with. With CM, she is satisfied with the device.

    I've also shown two friends how to install CM on their older devices (SGS2 and HTC Desire HD). They also like it.

    Nobody said that he/she is confused. Nobody wants to have less options.

    So I still think that CM is fine and I still do not understand how somebody would prefer less options. It just does not make sense to me.
  • srkelley - Sunday, November 23, 2014 - link

    Yes, and that's good for them.

    Again, it's not solely the number but in how they're presented. If it had a more cohesive, polished presentation then the number really wouldn't matter. The way that some part of the interface exposes (or doesn't) functionality is the true issue here.

    No, that doesn't mean that everyone will have trouble. I just don't believe that you should have search outside of a ui to understand how to complete basic and intermediate level items. That can be the cause with some of the cm11 functions. It's nowhere near all of them, it's something that I see the team fixing over time. It used to be way more daunting in the beginning, the team has been making great improvements while adding more functionality and I love it for that.
  • slfisher - Monday, November 24, 2014 - link

    Do you have a "CM for Dummies" reference to point to on how to configure it? thanks.
  • icekyuu - Monday, November 24, 2014 - link

    Try this - http://cornerplay.com/2014/08/05/cyanogenmod-onepl...

    For the record, I love CM's customization options.

    I vastly prefer the Google Camera app though. I suspect what happened is the reviewer got frustrated with the CM Camera app and that boiled over for everything else. When everything else is actually fine.

Log in

Don't have an account? Sign up now