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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  • Sprchkn - Thursday, July 26, 2012 - link

    Except that Flash isn't supported on Jelly Bean... I know, mine arrived yesterday and I tried that. Amazon either needs to release an Android app or move to HTML5.

    But, I've already cancelled the auto-renewal on my Prime account due to their use of Flash DRM which requires a workaround to install the deprecated HAL package under Gentoo so it's not like I'm married to them. Google actually seems to be the only one that supports both Linux and Android, so I'll just start purchasing my video content from them.
    Reply
  • Impulses - Friday, July 27, 2012 - link

    Flash works fine on Jelly Bean under Firefox and other browsers, just need to side load it. Reply
  • RamarC - Thursday, July 26, 2012 - link

    will allow usb tthumb drive/sd cards to be used with the Nexus 7. Reply
  • WolvenSpectre - Thursday, November 08, 2012 - link

    The problem is that it doesn't give you any write capability. Reply
  • Pino - Thursday, July 26, 2012 - link

    "213 pixels per inch in a 7 inch display is unique for an Android tablet"

    Lenovo´s S2007 tablet has such a display and was launched way before the Nexus 7:

    http://appserver.lenovo.com.cn/Lenovo_lepadSeries_...
    Reply
  • eaanders@cox.net - Thursday, July 26, 2012 - link

    The primary advantage of the Nexus 7 is price. If a tablet is so small you need to zoom, the sweet spot is the Galaxy Note. It's half the weight of the 7, fits in your shirt pocket, and combines the features of a phone, a camera, and a small tablet in one unit with the possibility of adding an additional 32 Gb of storage. The Note 2 will be even faster.

    My netbook will be replaced by a Windows 8 hybrid eventually for full computing power. This and the Galaxy Note are all I will need to do everything mobile.
    Reply
  • Sprchkn - Thursday, July 26, 2012 - link

    I think it depends on what you're using it for. I bought the Nexus 7 so that I can leave my phone docked up to my stereo and then look up recipes, check email, etc. while I'm in the kitchen cooking. The speakers are a bit weak, but it will probably also see some duty playing movies, again, while I'm cooking or perhaps when I'm on my treadmill. The missing storage hasn't been a problem for me with the way I use my phone and I always have my iPod available for music duty. Besides, for whatever reason, I've always had trouble with the micro SDs and corruption when copying large amounts of data onto them - so I'm actually relieved that Google Play means I no longer have to deal with that. Reply
  • MadMan007 - Thursday, July 26, 2012 - link

    An unlocked Galaxy Note is over twice as expensive as the Nexus 7. It's only fair to compare unsubsidized vs unsubsidized pricing. Everyone's needs and wants are different, but the 'if you're going to zoom anyway' point is valid if one were going to get a subsidized phone anyway and can deal with the size of the Note as a phone. Reply
  • hackbod - Thursday, July 26, 2012 - link

    Great stuff on the NAND performance, as well as the commentary on the screen configuration. Your reviews are consistently the most detailed and technically accurate I see.

    One thing that would be interesting to do is NAND performance comparisons with the 16GB model. I believe this uses a different NAND controller, so you should see some different interesting behavior. And since the 16GB model is likely more popular than the 8GB one, this would be relevant to many people.
    Reply
  • risa2000 - Friday, July 27, 2012 - link

    I would like to see similar tests (flash throughput) done also with smartphones. There has been rumors that there are some significant difference between some (e.g. iPhone and some Androids) and it would be interesting to know also for new WP devices. Reply

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