Department store chain John Lewis has said that traffic to its website from handheld mobile devices was up 70% year on year in the week to 3 August 2013.

Online director at the retailer Mark Lewis suggested that this is a trend the business expects to continue in the months ahead, as consumer confidence in mCommerce rises yet further.

The John Lewis website saw sales rise 24% year on year for the seven-day period, with overall traffic up 16% compared to the same week in 2012. Electricals & Home Technology sales were reported to be "particularly strong", while trading at the Home directorate was also said to be encouraging.

"Customers continue to opt for the convenience of click & collect which was up over 40% from last year, with particularly strong uptake of collection from Waitrose supermarkets," Lewis added.

During the comparative week last year Britons were glued to TV screens for the Olympic Games, meaning overall sales at John Lewis last week were able to edge up 4.4%. Meanwhile, the grocery arm of the John Lewis Partnership, Waitrose, reported a sales rise, excluding petrol, of 6%.

The main driver of growth at the supermarket continues to be its online services, which saw sales leap by 15.8% year on year.