Where Gmail Users Open Their Mail, August 2013 [CHART]

The Litmus study found that a significant share of Gmail opens occurred on mobile devices, with 54% of Gmail emails opened on either an iPhone or Android device, and another 9% opened on the iPad. Only 19% of Gmail opens occurred via Gmail on the web.

Notably, given the wide distribution of Gmail opens, Litmus found that less than 50% of opens on the mail service occurred on a client that supported tabs. Read the rest at eMarketer.