Social Media Study: 60 percent of moms have smartphones On average, they spend six hours a day using the devices, according to the study. By Kevin Allen@kevin_j_allenApril 15, 2011 SHARE At least that’s the major takeaway from a new study by the parenting website BabyCenter. Here are some highlights: To read the full story, log in. Become a Ragan Insider member to read this article and all other archived content. Sign up today Already a member? Log in here. Learn more about Ragan Insider.