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The per device and per OS based sales information revealed by IBM:
Smartphones Browse, Tablets Buy: Smartphones drove 24.9 percent of all online traffic on Black Friday compared to tablets at 14.2 percent, making it the browsing device of choice. Tablets drove 14.4 percent of all online sales, double that of smartphones, which accounted for 7.2 percent of all online sales. On average, tablet users spent $132.75 per order compared to smartphone users who spent $115.63, a difference of 15 percent.
iOS vs. Android: On average, iOS users spent $127.92 per order on Black Friday compared to $105.20 per order for Android users. iOS traffic reached 28.2 percent of all online traffic, compared to 11.4 percent for Android. iOS sales reached 18.1 percent of all online sales, compared to 3.5 percent for Android
Can any expert shine me a light on how IBM actually did this without any code violation in internet privacy?