What a time-saver.

Amazon has helped another supermarket chain launch its first checkout-free store.

The tech giant has teamed up with Sainsbury’s in London.

They previously worked with Tesco, and have their own Amazon Fresh stores, according to Mirror.co.uk.

The SmartShop Pick & Go format allows customers to pick up items and leave without having to use a till.

On entering, customers must scan a QR code using an mobile app which is linked to a credit or debit card.

While browsing, the Just Walk Out technology tracks shoppers as they remove items from shelves.

And it recognises when a customer puts something back so they’re not accidentally charged.

Photo by Oleg Magni from Pexels

Then when you leave, you scan the code again and you’re billed for your bits and bobs that way.

But if it all sounds a bit jarring, there will be store staff on hand to give you a hand and restock shelves.

Which is also good news, that it’s still a function that retains staff.

Even so, some people still feel a bit weird about walking out and feeling like they haven’t paid:

It’s no surprise that such a feature has come about, as Sainsbury’s says demand for contactless ways to shop in stores has increased.