For the Android fanatic who has everything, there's the new Xperia SmartWatch from Sony, an Android powered wristwatch that taps into your Google smartphone via Bluetooth. Why would you want to do that? Think of it as a secondary screen for your Droid or Nexus or whatever Android device you're packing in your pocket. Sony's SmartWatch vibrates in response to certain events, such as an incoming call. You can read texts and emails, and keep up with Facebook and Twitter all without ever reaching for your smartphone.

There are several places where you should make sure your smartphone is turned to vibrate, or off completely. The movie theater, for example. You should also silence your phone at the doctor's office, during lectures, and while attending class. But what if you forget? Just tap your watch.

That's part of the idea behind Casio's new watch using Bluetooth Low Energy (BLE) technology. Casio's been showing a prototype version at CES, demonstrating how it communicates with your smartphone by sharing a two-way data link. One of the things you can do with it is stop your smartphone's ring or vibration alerts simply by tapping the watch rather than feverishly fumbling around your pants pocket.

The watch will also alert you to email messages and provide accurate time information from the smartphone. According to Casio, you can do all this and still wear the watch every day without recharging it because it doesn't consume any more battery life than a conventional wristwatch.

Happy Gilmore's game wouldn't have improved any with Garmin's new Approach S1, but maybe yours can, or so Garmin hopes. As the GPS maker tells it, the Approach S1 is the world's first GPS wristwatch designed specifically for the links.

"With the Approach S1 golf GPS watch, Garmin has once again created an entirely new category for fitness and outdoor recreation," said Dan Bartel, Garmin’s vice president of worldwide sales. "Golfers who want their data and their device as streamlined as possible will find Approach S1 to be a sleek and simple hands-free solution to taking the guesswork out of their game."

The Approach S1 comes pre-programmed with over 14,000 U.S. and Canadian golf courses. All you have to do is select "Start Round" and you're off and running with "precise yardages to the front, back, and middle of greens."

It weights just 1.8 ounces, has an ultra-thin backlit display, and a rechargeable lithium-ion battery good for up to eight hours in GPS mode and up to three weeks in watch mode.

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