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Track your steps, sleep with Fitbit Flex wristband

Go-anywhere strap will constantly remind you to shape up. At least it doesn't talk.

Tim Hornyak/CNET

LAS VEGAS--Who doesn't need a little more exercise? Fitbit wants to push you to get more active with its Flex wristband, shown off at CES 2013.

It's a colorful pedometer that monitors how far you walk every day, as well as your time spent sleeping or tossing and turning.

The Flex can track steps, distance, calories, and how many minutes you've been active. It also has a silent alarm to wake you up.

You can also set daily goals, which a reflected in flashing LEDs on the water-resistant wristband. As you progress toward your daily goal, more lights flash.

Known for its wireless clip-on activity tracker, Fitbit integrated wireless connectivity in the Flex, which can sync with PCs, Macs, or mobile devices via Bluetooth 4.0. Its lithium-polymer batteries run for five to seven days.

It has an MSRP of $99.95, and is slated to be released in spring 2013 in a variety of colors.

The related website and apps can track user weight goals, calories consumed, and friends' progress too.

Fortunately, it's easy to take off if you feel like slacking off.