Sainsbury's is launching a full-on mobile network this summer, which'll be called Mobile by Sainsbury's. Mobile by Sainsbury's Feat. Vodafone would be a more accurate name, as the red network will be handling all the complicated backend stuff on behalf of the supermarket chain.
It's an entirely new operation, set up and jointly owned by Sainsbury's and Vodafone, which will see a Sainsbury's-branded network appear with its range of phones and contracts available in store and online. It'll arrive some time this summer, and will incorporate Nectar points for all your loyalty reward business.