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Jawbone UP24

Following a small snafu with the original, Jawbone is back with a completely new wearable physical activity monitor, and it's called the Jawbone UP24 ($150). This wrist-worn tracker is constantly connected to the iOS app on your iPhone or iPod touch, transmitting data over Bluetooth Smart about your sleeping pattern, movement, and food intake. It also has lots of other useful functions, like a smart alarm to wake you up and alerts to remind you to move through the day. The app works with you to provide detailed insights into your health and activity, letting you gradually improve your fitness as you wear it.

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