The British supermarket chain - which is one of the most popular in the UK - has decided to stage a trial in which consumers are able to scan goods with a smartphone.
The move means that shoppers will not need to queue for a staffed or self-service till, which in theory, will make their experience more straightforward and less time-consuming.
Despite this, Clodagh Moriarty, group chief digital officer for Sainsbury's, admitted that some customers are likely to find the process a little uncomfortable at first.
However, she told the BBC: "As we've been looking at customers over the past few days, the level of discomfort dissipates as more and more people do it."
Consumers will still have to speak to a member of staff in order to have security tags removed.
But customers will be able to scan a QR code by the exit to verify their purchases.
Moriarty added: "There is a colleague on hand at the special point to detag any items, and you're on your way.
"A small number of things require an added level of security - with alcohol we need to run our Think 25 [age] check, and with paracetamol there is a limit to how much you can buy.
"But we will be introducing these additional items to the range, and working with customers to make sure any interventions are as seamless as possible."