I would guess this is the right thread for this question. I'm an android person and generally use my s10 for all/any drone. However, I'm so tired of the constant drain that the android puts on the rc battery. Im looking at getting a mini 4 or 5 for this reason. Question is: I would like to retain GPS functionality without tethering my phone. If I get a 4 or 5 mini with cellular...do I need to have a carrier plan for it to have GPS work??