Originally Posted by draver

I will be testing various esim services in the next 3 weeks, mostly in Europe. I have already purchased a 30 day plan from KnowRoaming, and will also buy a 7 day one from GlobaleSim once we arrive. I also intend to activate some left over credit from Airalo on the iPhone of a travel companion, and I found an unused KeepGo sim that still is valid for 1Gb of data. It will probably go in my wife's iPhone.

I intend to use these data plans mostly for IMS calling to and from the US, so large data buckets are not necessary since that only requires about 1Mb per minute for voice service. My past experience is that any roaming data plan that can deliver 2-5 Mbps+ is adequate for my browsing needs. Speed tests use a lot of data, depending upon the speeds delivered, so I won't be running too many of those. I also am optimistic that IMS may allow for calling amongst our phones without charges since they are all US phone numbers. In Mexico they could make the free round trip from phone to phone, but that might be due to the roaming setup with our T-Mobile service. I have T-Mobile 256kbps free data roaming on our phones, so we have a fall back service if all else fails.

I'll try and do a running update for those who may be interested.