Only Fairphone 4 is currently available in the US via their US partner Murena. While I could get that one, I want to support Fairphone by boosting sales of their current model. If I were to buy one and put in a US SIM card, would I be able to make and receive calls?
I can say say first hand that pf5 works in the us. At the time I used T-Mobile, but no problems with connectivity.
T-Mobile is based in Germany, so cell service is still functional between continents.
Currently I don’t have T-Mobile, but have the murena esim, they do utilize the T-Mobile network though. Haven’t been in the US with the esim, but I can still use it fine on wireless or roaming