Google has upped the ante in the wearable-device competition with the purchase of WIMM Labs, a smart watch designer, the company disclosed Friday, but released few details on the transaction. The move comes against the backdrop of Google developing its own "Glass" device and Samsung Electronics' expected release of its "Galaxy Gear" wristwatch at a Berlin event this week. VentureBeat has published details of what the site says is a Gear prototype that Samsung has distributed.

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