Relative Wifi performance: iPhone 5 and iPad I noticed that my iPhone's Wifi performance sometimes lagged and so I did an experiment. From exactly the same place in my living room, within seconds of each other, my iPad showed around 6Mb down and my iPhone 5 showed less than half that, around 2.5Mb. 

Can someone suggest why they think this might be?
Not knowing what iPad you have, it likely has a different CPU and Wireless chipset. It also could have differing RAM and workloads - although they usually are not a blocking or even major factor in download tests.