U.S. M-Commerce Sales to Reach $25 Billion This Year
In total, Americans spent more than $10 billion shopping on their mobile devices in the first half of 2013, putting mobile spending on track to reach at least $25 billion this year. The lion's share of m-commerce spending happens on smartphones, which is owed to the simple fact that there smartphone users outnumber tablet users significantly. In fact, average spending per user is 20 percent higher on tablets, notes comScore.

Description
M-Commerce sales in the United States amounted to $10.6 billion in the first half of 2013. Given the traditionally strong holiday quarter, market research group comScore expects total m-commerce spending to reach at least $25 billion this year.