A recent study reported on by Fast Company shows that a tablet user may spend up to 50% more than a smartphone user when shopping online.  This may be because tablet users are more likely to have a higher disposable income (let's face it, nobody NEEDS a tablet), and also that they spend more time browsing the internet.

It’s an interesting development and a strong argument for designing and building your ecommerce site to cater to tablet users.

Read the full article by Fast Company here - http://www.fastcompany.com/1809535/tablet-users-spend-50-more-per-purchase-than-smartphone-owners