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Pebble smartwatch goes on sale at AT&T on September 27

The customizable smartwatch spreads its reach as it becomes available on the mobile carrier's Web site and in select retail stores.

The Pebble smartwatch. Sarah Tew/CNET

AT&T announced that it will be hawking the Pebble smartwatch come September 27. It will be the first mobile carrier to sell the watch, which not only tells the time but also wirelessly connects to users' smartphones.

Pebble was one of the first smartwatches to debut after its massive Kickstarter campaign last year. The watch reached its funding goal of $100,000, and then quickly surpassing it to raise a total of $10.2 million.

The $150 Bluetooth enabled smartwatch can alert users to e-mails and social-networking updates, as well as display caller ID information. The watch face is made of e-paper technology, allowing users to see what's on the display in direct sunlight. It's also water resistant.

AT&T has touted itself as the "exclusive" carrier of the smartwatch, but it's been available at Best Buy for a couple of months now. Pebble will be available on AT&T's Web site and in some of its retail stores on September 27 and will eventually roll out to more AT&T stores in October.

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