No, longer term payment plans such as Buy Now Pay Later, aren't available on these purchases. Any purchases at Sainsbury's with your Argos Card will be on Normal Credit, which works just like a normal credit card. To avoid paying any interest, you'll need to pay off your Normal Credit balance in full each month, by the date shown on your statement.
To keep on top of your payments, why not download our app, that way you can set up reminders and make payments on the go.