Walmart is testing a cashierless Sam's Club

Just walk out shopping': Go opens first Chicago location of its cashierless convenience store – Chicago Tribune

Walmart trains cameras, sensors on store efficiency

The Sam's Club Now store has no cashiers and people pay with an app

Walmart is trying cashierless again

Walmart-Owned Sam's Club to Open New Grocery Store

The Jobs Really Most Threatened by Machines - The American Prospect

How Sam's Club's cashier‑less store will provide it with valuable insight into grocery shopping

Sam's Club Set To Open A Cashier-less Store In Texas, 46% OFF

to open its first full-size, cashierless grocery store