Despite tough reviews that questioned its battery life and the usefulness of its round screen, the Moto 360 smartwatch sold out within an hour of its launch on Friday.

The watch went on sale at 12 p.m. ET on Google's online store, Best Buy's website and Motorola's web page. By 1 p.m. all three sites were out of both available models, with no indication of when more would be available.



That despite a series of reviews which were less than kind.

"It almost looks like I grabbed a clock off the wall and strapped it to my arm," wrote The Wall Street Journal's Joanna Stern, who lamented not only the size but the watch's limited battery. (She said it had to be recharged by midafternoon most days).



While USA Today called the watch's wireless charging cradle "charming," it was also quick to add that "not so charming is the battery life," which came in at about a day.

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Technology site The Verge was had plenty of praise, but it was savage on the battery life.