Britain's Sainsbury's trials similar concept to Amazon's Prime Now

Sainsbury's , Britain's second largest supermarket group, is trialing a one hour home delivery service that is similar in concept to Amazon's 'Prime Now', it said on Friday. Online shopping is one of the better-performing parts of Britain's retail sector and has become a key battleground for the big supermarkets as they grapple with the growth of German discounters Aldi [ALDIEI.UL] and Lidl [LIDUK.UL]. Britain's online food market is expected to nearly double to 17.2 billion pounds ($23 billion)