E-commerce giant Amazon has revealed plans to push further into the retail grocery market as it plans to open three new high-tech sites across the US.

The business opened the doors to a new 38,000 sq ft Fresh grocery store in Whittier, South California, earlier this week and will launch further outlets in Washington, Seattle and Bellevue in the coming months.

These new Amazon Fresh stores stock a much larger range of supermarket staples than the brands WholeFoods and smaller Amazon Go convenience stores.

High-tech features of the new stores will include automated 'Dash Carts' that use computer vision and built-in scales to identify items and charge customers without them having to visit a cashier.

Shoppers will also be able to ask for information about item locations or ask for recommendations thanks to a number of voice-activated Echo Show displays positioned around the stores.

Punchline says: "Are Amazon's ambitions to do (and sell) everything? This latest expansion certainty look that way and soon the organisation will have a hold on every part of our lives, from the websites we visit to the food we eat. But are they biting off more than they can chew?"