I've been using the Project Fi SIM card inside my Verizon Galaxy S8 phone for several months now. Obviously it only picks up T-Mobile signal when used like this. In fact, I no longer have a Google phone, Nexus, Pixel, or otherwise. I originally started Project Fi service by getting a $40 Nexus 5 phone that had a cracked screen and non-working speaker/earpiece... then it just died.(which service the purpose of activating Project Fi service)

Will cellspot work for this type of situation? My bedroom is on the side of the house that gets little or no T-Mobile signal. I get about 580mbps download speed via my current wireless router.(with cable 1gig internet service)

Thanks!