It's all about timing in the battle of the smartwatch

Samsung , the gadget will have a 2.5-inch screen, smartphone-like engine power, will run apps and will even sport a camera. Whether or not it works independently as a phone, the device will be designed to work closely with smartphones and tablets.But the Galaxy Gear smartwatch will not just compete against Apple's yet-unnamed wrist gadget, it will also go head-to-head with a number of existing smartwatch devices Here are four you can buy now.

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