Amazon develops version of cashierless technology for clothing stores

Amazon.com Inc. has developed a new version of its cashierless shopping technology for clothing retailers — in an effort to expand the system beyond convenience and grocery stores.

The retail and cloud-computing giant on Tuesday said the latest iteration of its Just Walk Out technology uses radio frequency identification, or RFID, tags to keep track of apparel.

Previously, Amazon’s system has relied on ceiling-mounted cameras and shelf sensors to determine who grabs what. The technology automatically charges a swiped credit card upon exiting the store. But the system can struggle to distinguish goods that are similar in weight and appearance.