Average Daily Mobile Engagement On Facebook By Activity, March 2013 [TABLE]
For those smart phone users who the study found turned to Facebook on their devices, most of their time on the network was spent checking their newsfeed (16.4 minutes on average per day). The next most popular activities were Facebook messaging (9.5 minutes) and then updating a status message or posting a photo (6.6 minutes). Average time spent accessing Facebook via mobile came out to just over half an hour per day. Read the rest at eMarketer.