Customers log-in to their Tesco app, check-in to the store, pick up their groceries and walk out without visiting a checkout.

The retailer said a combination of cameras and weight-sensors will establish what customers have picked up and charge them for products directly through the app when they leave the store.

The format, known as GetGo, has been rolled out in the High Holborn branch following a successful trial at Tesco’s headquarters store in Welwyn Garden City.

Kevin Tindall, managing director of Tesco Convenience, said: “This is a really exciting moment for Tesco as we launch GetGo with customers.

“We are constantly looking for ways to improve the shopping experience and our latest innovation offers a seamless checkout for customers on the go, helping them to save a bit more time.

“This is currently just a one-store trial but we’re looking forward to seeing how our customers respond.”

Tesco is the latest retailer to launch till-free stores.

Amazon Fresh opened its first checkout-less location in West London earlier this year, while Aldi announced last month it was trialling checkout-free technology in one of its London stores.