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The tablet part is smaller and thinner than the Surface. Together with the keyboard, it makes for a familiar little setup: a tiny laptop running Windows. Like the Surface, it has a memory card slot and a USB port. The screen resolution is the same.

The Vivo Tab is a good tool for those who want to get some work done on the commute or plane, or those who can’t decide if they want a laptop or a tablet.

_ Google Nexus 10 (starts at $399)

This is Google’s first full-size tablet and the only tablet from any manufacturer that beats the screen resolution of the iPad. It boasts 2,560 by 1,600 pixels, a third more than the fourth-generation iPad.

It’s also the only tablet in this roundup that has speakers on either side of the screen when it’s held horizontally, making for good stereo reproduction when you’re watching movies. It has a grippy, rubberized back and widely rounded corners. There’s no memory card slot or an option for a cellular modem.

The array of third-party software is wide, just as it is for the Note 10.1. Most people don’t associate Google with online books, music or movies, so it may feel odd that the Nexus steers buyers to Google’s Play store. Of course, given the open nature of Google’s Android operating system, there are apps available for other entertainment stores, including Amazon’s, and for streaming services like Netflix.

The Nexus 10 is a snappy performer, and among the iPad’s competitors, it comes the closest to matching the versatility of Apple products.

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Peter Svensson can be reached at http://www.twitter.com/petersvensson