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Lumafit, launching later this year, is an ear-worn fitness tracker that also checks continuous heart rate. Its Kickstarter pre-order price is $99.

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Photo by: Scott Stein/CNET

The two-part device has a motion-sensing accelerometer, and also a clip that reads heart rate through the earlobe.

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Photo by: Scott Stein/CNET

It lasts six hours on a charge, and pairs with Android and iOS device.

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Photo by: Scott Stein/CNET

A stress-reducing app focuses on breathing exercises to control heart rate, using continuous readings as a form of feedback.

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Photo by: Scott Stein/CNET

The fitness app aims to work with exercises that don't normally work with wrist-worn fitness bands.

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Photo by: Scott Stein/CNET

How Lumafit fits into an ear.

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Photo by: Luma

A glimpse of the app's graphic design.

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Photo by: Luma

Lumafit measures head positioning for exercises like sit-ups.

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Photo by: Luma

A visual concept of the types of data Lumafit could collect.

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Photo by: Luma

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