If you got used to the effectiveness of the Apple Environment, you might be dissappointed by a cheap solution and an iPad Mini (4, as this earns highest ratings & reviews actually) may be best art of choice. An Android solution does its job and if its destined to one purpose maybe even well, but you also may encounter a lot of more maybes when time goes by, updates have to be done etc. I advise to check forums.skydemon.aero for an impression on the different mood in discussions of iOS vs Android usage. You will find i.e. a discussion on Tesco as well. Built your opinion on reading Skydemons forums and decide what you feel is best for you.