[stanfordprof]

Does anyone know which COUNTRIES would be unavailable using the UK version vs the US version? I see the listing of bands, but I am asking about the implications of those band differences.

[Dunt Dunt Dunt]

Very broad question.... you would need to compare the listed bands with the country you plan to visit and the carriers in that market that you might use.

The UK is selling a European/Asian/African model, but in some cases the US version(s) might be better in those markets (or with a specific carrier).

Use these to compare them....
http://www.worldtimezone.com/4g.html
GSM World Coverage Map- GSM Country List by frequency bands
Ignore the maps, just look at the listings for the bands.

[BB-JAM215]

The main difference is that the North American GSM version has more bands and includes all of the EMEA bands.

In the end it comes down to carriers more than countries. If you get the "US V1" BBB100-1 GSM version you get all the available KEYone GSM bands.

[stanfordprof]

Very broad question.... you would need to compare the listed bands with the country you plan to visit and the carriers in that market that you might use.

The UK is selling a European/Asian/African model, but in some cases the US version(s) might be better in those markets (or with a specific carrier).

Use these to compare them....
http://www.worldtimezone.com/4g.html
GSM World Coverage Map- GSM Country List by frequency bands
Ignore the maps, just look at the listings for the bands.

I use ATT when I'm in the US. I travel in Europe, Latin America, and Asia and roam when traveling.

Thanks for the link.