Join Date: Aug 2010
Location: LGA - JFK
Programs: UA, AA, DL, B6, CX, KE, Latitude, VIFP, Crown & Anchor, etc.
Posts: 2,589
You need a Nexus 6, 6P or 5X to initially setup the voice/data sim for activation - it is possible to move that nano Sim to another device. But, if you do succeed in making it work on another Android - some functions will not work (i.e. auto-switching/sensing networks to be connected to for use, and, most likely - stay on T-Mo's network & not Sprint.) Some users reported that they can manually force a switching for better coverage from T-Mo to Sprint, or vice versa.
If you do this, you are on own own as Fi Support would be unable to assist or help troubleshoot.