Even though Android leads in terms of marketshare, iPhone and iPad owners use more data than Android users. It also appears that iOS users are also more comfortable with shopping online via their mobile device than Android users.
IBM released their Holiday Benchmark Report and found that among U.S. consumers shopping for Thanksgiving and Black Friday deals from their mobile device, a strong majority were using iPhones or iPads and about 77% of all mobile purchases originated from an iOS device.