Nine health wearables for your head

By Jonah Comstock
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Spree from Spree Sports

Spree

It's important to note that not every crowdfunded, head-worn tracker is an overnight success. The Spree headband, which debuted at CES and promised to add temperature tracking to the standard retinue of motion and heart rate tracking, only managed to raise less than $2,000 of a $100,000 goal. Nonetheless, the company seems to be going through with the device, which can be reserved on their website.