Chart of the day: iPad, iPhone dominate “couch commerce”

As a companion piece to the comScore report Monday that Americans have spent a record $18.7 billion online so far this holiday season -- up 15% from last year -- consider this chart from Compuware APM showing the relative contributions of the two leading platforms for what it calls "couch commerce": Apple's (aapl) iPad and iPhone.

Together, according to an earlier IBM study, the two devices accounted for 10.2% of Black Friday's online retail traffic.

All products and services featured are based solely on editorial selection. FORTUNE may receive compensation for some links to products and services on this website.

Quotes delayed at least 15 minutes. Market data provided by Interactive Data. ETF and Mutual Fund data provided by Morningstar, Inc. Dow Jones Terms & Conditions: http://www.djindexes.com/mdsidx/html/tandc/indexestandcs.html. S&P Index data is the property of Chicago Mercantile Exchange Inc. and its licensors. All rights reserved. Terms & Conditions. Powered and implemented by Interactive Data Managed Solutions