For online shopping, smartphones are good for browsing but tablets are used more when it’s time to make a purchase. Also, iOS outdoes Android.iOS outdid Android for both the amount of traffic to online sales sites and for the amount of purchasing. When it’s time to actually spend the money in the mobile-device era, tablets were used 55 percent more often than phones during Thanksgiving-day shopping. Traffic from phones outpaced that of tablet for browsing sites, with phones accounting for 26.6 percent of visits to 15.3 for tablets, according to IBM data harvested from 800 retailers’ e-commerce sites. But for purchasing, tablets were used 83