This is where I think the VivoTab RT really distinguishes itself. If you were to ask me for one reason to buy the ASUS over Surface, this is it. The tablet is quoted as having similar battery life to Surface actually, even though it has a smaller 25Wh battery (Surface RT has a capacity of 31.5Wh, but both manufacturers claim 9 hours of battery runtime.) The higher power efficiency claim is likely due to the smaller display. I saw just under 8.5 hours in our web-browsing test, and a hair over 10 hours in our HD video playback test. These were a bit lower than what we’ve seen from the 2012 iPad, Transformer Prime, and other recently tested devices, but dead on with the Transformer Infinity and not too far off the pace set by the others.

Web Browsing Battery Life

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

And anyways, when you toss in the integrated 22Wh battery in the docking station, you’re looking at nearly 14 hours of battery runtime in light-load workflows. It’s awesome. Truly all-day computing, something that Surface and the iPad come close to but can’t really match. 

Tegra 3 and Windows RT: Performance ASUS VivoTab RT - The Cameras
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  • N4g4rok - Tuesday, October 23, 2012 - link

    He even mentioned that RT is getting it's own review in a little while.

    On top of that, with an ipad, the hardware and OS are rolled into one and are usually new, so you see an analysis of both new products. This is an Asus product running windows software, and like most laptops that get reviewed where no time is spent on windows 7, tablets will probably be treated the same. There's no point in going that in depth on every aspect of the tablet when we're going to see it and hear about it in other reviews.
  • kyuu - Wednesday, October 24, 2012 - link

    Windows RT will be getting its own review, and the Surface got a fairly in-depth review by Anand himself.

    Plus, there's no new SoC going on here like in the iPhone 5 review, which Anand was obviously keenly interested in.
  • Lonyo - Tuesday, October 23, 2012 - link

    Is there any indication of the settings you used in your battery life testing?
    Presumably you went for a standardised brightness across all products? There's nothing in the graphs to indicate how testing was performed, and it would be useful to know, although given ATs history, I assume it was done in a fairly comparable way.
  • VivekGowri - Tuesday, October 23, 2012 - link

    200nits, same as always :)
  • Braumin - Tuesday, October 23, 2012 - link

    This makes me seriously excited for RT. I think the app issue is going to go away very quickly.

    I'd like to see a couple more reviews (especially Surface!) before I can pick what I get. I was leaning pretty heavily towards Surface, but this for the same price has a great battery/keyboard dock.
  • sulu1977 - Tuesday, October 23, 2012 - link

    Where's the usb3 port? How can you exchange files with another laptop? Is the battery removable?
  • antef - Tuesday, October 23, 2012 - link

    I misunderstand how you can call it a decent PC replacement/ultraportable in the conclusion when you can't install any desktop applications on it at all. That means you get Office and the very poor selection of the Windows Store. That doesn't come anywhere CLOSE to a PC replacement! Are you sure you didn't accidentally copy and paste that line from a Windows 8 (not RT) review?
  • kyuu - Wednesday, October 24, 2012 - link

    He didn't say it was a PC replacement. He said it was the first tablet that he can accomplish his workflow on, as opposed to Android/Apple tablets that aren't up to the task. He's impressed with how capable it is as a PC replacement, which isn't the same as saying it is a PC replacement (though I'd argue it could be for a large percentage of users whose only tasks are Office, web, videos, and some casual gaming).
  • DMagic - Tuesday, October 23, 2012 - link

    Maybe I missed it, but does the dock disable the touchscreen and the home button, or just the button?

    I'm interested to know what it's like to use the touchscreen as a supplementary input device. This seems like an ideal way to use Win8 RT (fingerprints, I know, but they are easy to clean off and I don't think they are that big of a deal anyway), with its combination of such disparate interface types.
  • kyuu - Wednesday, October 24, 2012 - link

    Dock only disables the home button. Disabling the touchscreen would just be foolish.

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