A redesigned Halo service was due this fall with an AI-powered personal trainer, celebrity-led fitness classes, and even Apple Watch support. But Amazon threw in the towel on Halo before it got there.

SEATTLE--(BUSINESS WIRE)--Amazon (NASDAQ: AMZN) today introduced Halo Rise—a new, multi-purpose bedside tracker dedicated to helping improve your sleep. Halo Rise uses built-in sensor technology, ...