On smartphones, by contrast, users seem to prefer to keep it simple. A Pontiflex survey conducted by Harris Interactive found that very few smartphone users preferred ads that were like commercials or that featured video. Just 15 percent of all adults liked such ads on their phone, vs. 63 percent who preferred more basic coupons, deals or newsletters.
So it appears the flashy video ads are better suited to tablets, while coupons are better suited to smartphone users.