Mobile was responsible for 16 percent of sales on Black Friday.

Mobile played a significant role on Black Friday, accounting for around 16 percent of sales, according to IBM, up from 9.8 percent last year. (In total, comScore reported, U.S. sales on the day after Thanksgiving topped a record-beating $1 billion.) And many more holiday shoppers are turning to their mobile devices to research and review products, according to an infographic from Florida-based agency MDG Advertising. And while consumers using tablets may be seeking discounts and better deals, they’re also spending around 15 percent more than desktop users.

This holiday shopping season is shaping up as one that’s defined by mobile use, whether for purchase or research. As many as 87 percent of U.S. respondents to a recent survey conducted by Sybase 365 and the Mobile Marketing Association said they plan to use their mobile device to change the way they shop this season.