Hello, I am considering to buy an iPad PRO 12.9" as my iPhone's screen is too small for me to read. Somebody mentioned that if I use my iPhone to create a hotspot for the iPad PRO to access the internet, more data will be consumed. Moreover, the bigger the size of the iPad, the more data will be consumed. Is that really true? I cannot under this as the iPads should take the same amount of serial data from the internet provider because they display the same amount of information. Larger screen iPads just display things bigger.