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Fitbit Flex 2

The Fitbit Flex 2 is Fitbit's super-slim new tracker. It replaces the older Fitbit Flex.

Published:Caption:Photo:Sarah Tew/CNET

Fitbit Flex 2

The Flex 2 is 30 percent smaller than the old Flex tracker.

Published:Caption:Photo:Sarah Tew/CNET

Fitbit Flex 2

From a distance, it looks like a Jawbone Up band.

Published:Caption:Photo:Sarah Tew/CNET

Fitbit Flex 2

The Flex 2 pops out of its band accessories: the actual tracker is really small.

Published:Caption:Photo:Sarah Tew/CNET

Fitbit Flex 2

It's fully swim and shower proof, up to 50 meters. It tracks swimming and laps automatically, too.

Published:Caption:Photo:Sarah Tew/CNET

Fitbit Flex 2

The bands come in several colors and sizes. These are rubber, but there are optional metal bangles and pendants, too.

Published:Caption:Photo:Sarah Tew/CNET

Fitbit Flex 2

One of the new Fitbit-made metal bangles for the Flex 2. It opens up like a cage and holds the tracker, while the lights shine through.

Published:Caption:Photo:Sarah Tew/CNET

Fitbit Flex 2

The Flex 2 has a row of LED lights in several colors to show different notifications from your phone, color-coded. It also vibrates.

Published:Caption:Photo:Sarah Tew/CNET

Fitbit Flex 2

Other accessories will be available from Simply Vera: including Vera Wang, Tory Burch and Public School (not seen here: these are Fitbit's accessories).

Published:Caption:Photo:Sarah Tew/CNET

Fitbit Flex 2

The bangle comes in several sizes.

Published:Caption:Photo:Sarah Tew/CNET

Fitbit Flex 2

The Flex 2 can automatically track workouts or exercises.

Published:Caption:Photo:Sarah Tew/CNET

Fitbit Flex 2

Battery life lasts around five days.

Published:Caption:Photo:Sarah Tew/CNET

Fitbit Flex 2

The Flex 2 next to the new Charge 2, on the right. The Flex 2 is definitely a lot smaller.

Published:Caption:Photo:Sarah Tew/CNET

Fitbit Flex 2

Flex 2 can track steps, activity and sleep, but lacks a heart-rate tracker.

Published:Caption:Photo:Sarah Tew/CNET

Fitbit Flex 2

It also doesn't have a true display, so it can't work as a watch.

Published:Caption:Photo:Sarah Tew/CNET

Fitbit Flex 2

It's light enough to feel invisible.

Published:Caption:Photo:Sarah Tew/CNET

Fitbit Flex 2

Hopefully Fitbit will make its other trackers waterproof someday, too.

Published:Caption:Photo:Sarah Tew/CNET

Fitbit Flex 2

CNET senior editor Bridget Carey said she liked the look of the Flex 2 pendant.

Published:Caption:Photo:Sarah Tew/CNET

Fitbit Flex 2

But she complained the bangle "lacked pizzazz"

Published:Caption:Photo:Sarah Tew/CNET

Fitbit Flex 2

Here's some more shots of the Flex 2 inside of the accessory pendant.

Published:Caption:Photo:Sarah Tew/CNET

Fitbit Flex 2

It comes in both gold and silver.

Published:Caption:Photo:Sarah Tew/CNET

Fitbit Flex 2

You can even see the LED lights through the casing.

Published:Caption:Photo:Sarah Tew/CNET

Fitbit Flex 2

Published:Caption:Photo:Sarah Tew/CNET

Fitbit Flex 2

The Flex 2 cost $100 (£80 UK, or AU$150), which makes it pretty compelling, if you're looking for a basic slim tracker.

Published:Caption:Photo:Sarah Tew/CNET

Fitbit Flex 2

Published:Caption:Photo:Sarah Tew/CNET
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