This article is a couple of weeks old, but I just stumbled up on it. It’s a look at a new cashierless store in San Francsciso that goes further than Amazon’ Go stores.
“The cameras document shoppers’ movements, speed, stride length and gaze. The store knows when I glance at a poster and for how long. It knows if I slowed down, grabbed a chocolate bar and put it back. It knows if my body is facing the dried mangoes but my face is set on the popcorn.”