Lumafit: Heart rate in an ear (photos)

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

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

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

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

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

How Lumafit fits into an ear.

A glimpse of the app's graphic design.

Lumafit measures head positioning for exercises like sit-ups.

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