Why? Because iPhone users are geekier and know about wifi?
Comscore Releases
comScore, Inc. (NASDAQ: SCOR), a leader in measuring the digital world, today released an analysis of mobile and Wi-Fi Internet usage on smartphones in the United States and United Kingdom. Based on census-level behavioral data from comScore Device Essentials, the report studied the share of unique smartphones connecting to operator and Wi-Fi networks to provide insight into Internet connection patterns across markets. Among its findings, the analysis shows a significantly higher percentage of iPhones than Android phones connecting to the Internet via Wi-Fi networks.