I have a 5 already, but would get a 5s or 6 if there would be a better phone to use for wifi. It's really all I'd be using the phone for, logging on and browsing now and then when I'm at a jobsite. Does anyone know, will I get as good of a wifi signal for my Macbook Air (2014) from my 5 as I would from a 5s or 6? If anyone knows for sure, I'd appreciate you letting me know. If a 4S or ipad would be better or worse to use as a hotspot, mention that too. I'd be using TMobile, and have a plan that covers the hotspot useage, and the reception for where I'd be using it is fine. Thank you!