https://techcrunch.com/2020/08/27/amazon-debuts-halo-smart-health-subscription-service-and-halo-band-wearable-activity-tracker/

Amazon has introduced an entirely new membership program called Halo today that aims to provide comprehensive personal health and wellness monitoring and advice. The Halo service, which is opening to early access by special request today, includes both the service and a new Amazon Halo Band wristworn activity tracker for $64.99 for a six-month membership. Amazon says that the standard public price of the same will be $99.99 once it’s more generally available.

Halo looks to offer more than your standard health tracking gadget/app combo, by taking a comprehensive look at various measures of health, including body fat percentage, as measured at home with just your smartphone’s own camera and the Amazon Halo app. The company says that it was able to make this possible using its own advances in computer vision and machine learning. Amazon employes deep neural network-based processing of your uploaded photos to separate your body from its surroundings, analyze so-called body fat “hot spots” where it’s easier to measure body fat percentage, and then generates a 3D model of your body. You can then use a slider to adjust your body fat percentage up or down to see what kind of impact gaining or losing body fat would actually have on your physique.