Battery Life

The Nexus 7 has an integrated 16Wh battery, which despite its size delivers extremely good battery life. Our WiFi browsing test saw the Nexus 7 deliver 9 hours of battery life on a single charge, that's roughly half an hour less than the new iPad.

Web Browsing Battery Life

The Kindle Fire comparison is even more impressive - the Nexus 7 outlasts the Fire in this test by nearly 70%.

Video Playback - H.264 720p High Profile (4Mbps)

Battery life while playing back locally stored video is just as impressive. Here the Nexus 7 clocked in at over 10.5 hours on a single charge, 82% longer than the Kindle Fire. Of course with only 8GB of local storage you're going to be forced to stream a lot of content to the Nexus 7, where it will get worse battery life.

Our 3D gaming battery life test shows how bad things can get on the Nexus 7 if you really stress the SoC and display: 4.08 hours. This is actually the only test where the Kindle Fire does better on battery. Do keep in mind that the Nexus 7 is technically doing more work (higher resolution and frame rate), which contributes to the delta in battery life here. 

3D Gaming Battery Life - Riptide GP

With 4 hours on the low end and 10.5 hours on the high end there's a pretty wide dynamic range for battery life on the Nexus 7. Keep that in mind because depending on your usage model you may end up closer to the lower end of that spectrum than you'd otherwise think. The big problem is without tons of local storage, you're going to end up relying on WiFi for content streaming needs a lot more than you would otherwise - which does have a tangible impact on battery life.

The Nexus 7 does take a good amount of time to charge its relatively small battery using the supplied 10W (5V, 2A) charger:

Charge Time

You can expect a full charge to take 3.35 hours, and about 3 hours to hit 90%.

NAND & WiFi Performance Final Words
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  • Sined - Thursday, July 26, 2012 - link

    Hey Anand, great review as usual.

    I want to point out something about the lack of an SDcard slot.

    Dan Morrill from Google Android team explained on Reddit why Google is moving away from SDCard storage on Nexus Devices.

    It's a really interesting read on the reasons why.

    http://www.androidpolice.com/2011/11/18/impromptu-...
    Reply
  • Lucian Armasu - Thursday, July 26, 2012 - link

    You keep putting Windows RT together with Windows 8, as if they are the same thing and will be just as successful (or will fail just as much). But in what way is a Windows RT tablet, especially one that is twice as expensive, or at least as expensive as an iPad, better than an Android tablet? Is there an advantage at all that they hold over Android tablets? Because I see none, and I'm not sure why you keep up-playing Windows RT while downplaying Android tablet throughout your article. Reply
  • antef - Thursday, July 26, 2012 - link

    Agreed....a hybrid x86 Win8 device might appeal to some people, but a WinRT ARM tablet is not inherently better than Android. I would actually argue Android is better because its app ecosystem is more mature and all the Google services apps are a given. Metro is completely unproven.

    WinRT will have the limited desktop with a simplified set of Office apps, that's it. I don't care about that at all, along with many other people I'm sure.
    Reply
  • Impulses - Friday, July 27, 2012 - link

    Office RT is the only clear advantage out of the gate, if they actually provide a featured desktop conversion that just happens to run on ARM... If all they put out is a Metro stepchild then that goes out the window. (no pun intended) It's a big selling point tho, but only if Win RT tablets are price competitive with iPads and Android tablets.

    Personally I'm still not sold on this holy grail of device convergence either way. 12" or smaller laptops are too cramped for serious work, and tablets just aren't as comfortable for use around the house at that size either. 7" or 8.9" is ideal IMO, specially as an addition to a 13"-14" laptop which is probably the most common scenario.

    I say that despite having enjoyed using a 10" ASUS Transformer for over a year now. Currently I have that and a 3 year old netbook and I'm really yearning for a larger laptop replacement for the latter and a smaller tablet in the long run (the TF + dock has been a nice replacement for the netbook when traveling without work duties tho).
    Reply
  • EnzoFX - Thursday, July 26, 2012 - link

    Why will Win8 Tablets cannibalize Android tablets?

    I'm all for more competition, and MS is definitely bringing it, but are you implying it'll overtake Android right away? MS has a long way to go before that. Even their specs seems underpar, except for the intel powered one, which comes in at ultrabook pricing...
    Reply
  • Impulses - Friday, July 27, 2012 - link

    If that... I seriously don't see how Intel powered tablet hybrids will come in at ultrabook pricing all the while sporting better displays and near identical hardware all around (with a more complex builds). Something's gotta give, or the build quality of ultrabooks has inflated prices a ton... Reply
  • TareX - Friday, August 03, 2012 - link

    Windows 8 RT is DOA. No apps, no way to compete, and it's too late in the game to start a new third party base. Windows 8 pro tablets are GREAT, except that they won't be price anywhere close to being competitive, so those are kind of DOA too in a different way. Very few people would pay $800-1000 for a tablet. Reply
  • Death666Angel - Thursday, July 26, 2012 - link

    Thanks for the video review, I started missing them already! :D

    If the Nexus had an SD slot and more storage out of the box without a 50USD increase in cost, I'd probably already have one. As it stands now, I'm content with my Chinese tablet (Cube U30GT). It has issues, but for the price (260€) it is pretty great. And I'm 100% with you, paying too much for tablets right now is not a smart move, considering the rapidity of the hardware development.
    Reply
  • TareX - Friday, August 03, 2012 - link

    You do realize this pricing is actually super generous on Google's behalf (they're selling it at a loss), yet you want them to include a MicroSD, and have more storage without the $50 bump. I'm all for a MicroSD but you're getting a wee bit too greedy here. There's a reason it's out of stock almost everywhere. Reply
  • Mr. Context - Thursday, July 26, 2012 - link

    Hey, I think the biggest differences between the devices is in their aspect ratio and he HDMI output. Please check this link to hear my 50 cents on it... http://bit.ly/OezNK7 Reply

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