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Fitbit's most complete fitness tracker yet (pictures)

The $99.95 Fitbit Flex is light, small, feature-packed, and very comfortable to wear. Wrapping around the wrist, the Flex can track sleep, steps, and the calories you burn.

Brian Bennett
Brian Bennett is a former senior writer for the home and outdoor section at CNET.
Brian Bennett
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Thin, light, and spartan

The only indicator on the Fitbit Flex is a small array of LED lights. You tap the screen to illuminate them and to initiate sleep tracking mode.
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A full kit

Included in the Fitbit Flex box is the tracker module, a USB cord for charging, a flexible wristband, and a USB Bluetooth adapter.
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This case is flexible

The tracker module for the Fitbit Flex fits into a pouch on the soft wristband.
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Pop that band

Removing the tracker is just a matter of popping open the wristband's pouch.
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Wrap it around

Wrap the Fitbit Flex's strap around your wrist and fasten its bindings to ensure a secure fit.
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Comfy yet ready for action

It takes a little doing, but once the Flex's strap is attached, the device stays put.
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This tracker sure is tiny

The Fitbit Flex's main tracker unit is the smallest Fitbit device yet.
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Its own Bluetooth network

Once you connect the bundled USB Bluetooth adapter to a PC or Mac, the Flex can enjoy its own private Bluetooth network.
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Just charge the tracker

To charge the Fitbit Flex's battery, you must remove it from the strap and then place it with its USB cable charger.

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