Review of Amazon's $100 Halo Band, a health tracking bracelet: excessively invasive without offering much in return for the data (Washington Post)

Washington Post:

Review of Amazon’s $100 Halo Band, a health tracking bracelet: excessively invasive without offering much in return for the data  —  The Halo Band asks you to strip down and strap on a microphone so that it can make 3-D scans of your body fat and monitor your tone of voice.