[wenc]

> I'm not even sure how much floor space JWO saves vs self-checkout.

Not sure JWO is about saving floor space. It's more about saving the customer time. A grocery line on a Saturday afternoon is frustrating. Imagine Costco having this.

JWO works with products sold by weight (like produce -- it uses sensor fusion with weight sensors), large items and identical-looking items too. I tried it last week at Amazon Fresh. It works.

[londons_explore]

I worry how accurate it is. An error of just a few grams overcharging a customer will get Amazon in trouble with regulators. While just a few grams less cuts out the whole profit margin.

Remember that the Amazon weighing shelves have to deal with someone putting produce across two shelves (ie. A an apple balanced so it is partially weighed by one shelf and partially by another).

Since the shelves are large (ie. 10 foot tall), they also have to deal with the buffeting air from air conditioners in the shop, while still detecting someone taking a 5 gram SIM card pack...