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Clip, but watch it carefully

The Fitbit One clips onto clothing to track your movements. Since it's so small and lightweight, though, you should keep an eye on the gadget, as the clip can pop off unexpectedly.
Updated:Caption:Photo:Sarah Tew/CNET
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Versatile design, flexible features

Included with the Fitbit One is a silicone sheath with clip and USB Bluetooth adapter.
Updated:Caption:Photo:Sarah Tew/CNET
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Better fitness in your grasp

Outside of its sleeve, you can clearly see how it's easy to misplace the tiny Fitbit One.
Updated:Caption:Photo:Sarah Tew/CNET
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One button does it all

The Fitbit One sports just one sole button. The key cycles through its various screens and kicks the gadget in and out of sleep mode.
Updated:Caption:Photo:Sarah Tew/CNET
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How many stairs can you climb?

One of the Fitbit One's skills is its ability to measure how many stairs you climb.
Updated:Caption:Photo:Sarah Tew/CNET
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