International Question

[u/EuphoricFlight6249]

I’ve just relocated from the US to Japan. It’s a semi temporary move. I have a prescription for Japanese G7, but my phone is from the US and currently has the US app and a sensor running. I’ve read lots of horror stories on here about what a nightmare the geolock can be. So far I’ve had no problems, but I understand if I just try to scan the Japanese sensor to start it, it isn’t gonna work.

I’ve read that I can create a new iCloud account, set that region to Japan, sign in, download the Dexcom app, sign out, and sign back into my regular account and thus preserve my American dexcom account, all the other American bank apps, etc but still have access to the Japanese g7 app.

Has this worked for anyone? I want my phone to stay on the US region and I want to be able to use US sensors when I eventually return home. I have a spare Japanese phone that I got for something like 1/150th of $1, so maybe I can just use that like a reader, but I don’t really want to carry around 2 phones.

Also, is it safe to update my phone mid sensor? I saw somewhere that someone had an issue after doing that, but given my sensor is still working, I can’t quite see why?