Amazon Fresh has been named the cheapest online supermarket in the latest Grocer 33 price comparison survey, with a weekly basket costing £71.52 — 11% cheaper than any rival.
The Grocer ranks retailers every week, comparing the price of a 33-item weekly food basket, which includes products such as smoked salmon, cauliflower and Robinson's fruit cordial.
For the week commencing Monday October 12, Amazon Fresh offered the lowest price on 25 items in the basket and was the only retailer to offer the cheapest prices for sugar snap peas (£1) and Sacla' pesto (£2.39).
Ocado and Asda follow in second and third
Ocado came in second place with a basket costing £81.02, while Asda took third at £81.66.
Amazon Fresh operates online-only after announcing the permanent closure of all 19 of its physical Amazon Fresh grocery stores in the UK last September, shifting its focus entirely online. It currently sells both own-brand items, as well as products from Morrisons, Iceland, Booths, Co-op, and brands such as Kellogg's and Hovis.
Ocado is perhaps best known for offering M&S products online, as well as other staple brands. Its second place came from leaning heavily on a 15.6% promotional discounts week, which included price cuts on Costa instant coffee and New York Bakery Co bagels. These promos meant Ocado was 9% cheaper than last week, and 2.3% cheaper in a year. Ocado also claimed six of the cheapest items, which helped edge it towards second place.
Other major supermarkets ranked
Budget champions Aldi and Lidl, named the top two cheapest supermarkets for September 2026 by Which?, don't offer their own home delivery, leaving the higher budget supermarkets and online retailers to battle it out.
Of the major supermarkets, Asda had a total of £81.86, with 16 lowest prices, but had no items available where it exclusively offered the cheapest price. Closely following, the online basket from Sainsbury's totalled £82.06, with Nectar member savings. The supermarket also claimed the cheapest price for Rowntree's Randoms and Hovis loaf.
Tesco took fifth place, with a basket total of £84.34, and was exclusively the cheapest for coffee and Cathedral City cheddar.
Morrisons and Waitrose at the top end
The second most expensive basket went to Morrisons, which had a total of £87.72. But it was posh supermarket Waitrose that had the most expensive total, with £98.69, making it 38% pricier than Amazon.
Waitrose, named the most expensive supermarket for September 2026 by Which?, matched the lowest price on only one item, Method surface cleaner.
