tethered

I know that WiFi only iPads won't be able to do the follow me functionality and I won't be able to update my controller location. However... Do you get that functionality if you tether to an iPhone to get a network connection? I just tried this with my older WiFi only iPad tethered to my iPhone...

Hello.. I am wondering about buying a device just for my Mavic. Wondering if any of you out there currently uses an iPod Touch tethered to their phone, and/or an iPad Mini with cellular connectivity or tethered as well, I guess. What are the drawbacks in using these devices vs your iPhone? Do...