While Amazon Go helped pioneer the concept of the totally contactless store, others, like 7-Eleven and Walmart, have entered the territory. And the arena is growing, in part because several startups — such as  Standard Cognition, Zippin, AiFi, Grabango, Trigo — have proliferated, offering their technology to retailers.  But in Europe, Portuguese startup Sensei has […] © 2024 TechCrunch. All rights reserved. For personal use only.