Originally Posted by
mrcamp
Over all though, Tmobile should have a lot more countries that sprint. Primarily because GSM is used in most other countries vs CDMA which is used in a select few countries.
To use Sprint's roaming you need a device compatible with the networks used abroad of course (which many new phones are, such as iPhones), but Sprint has more countries in its roaming than does T-Mobile. They share the same ca. 140 countries, with T-Mobile having 8 that Sprint does not have and Sprint having 27 that T-Mobile does not have. (Now with the counting of islands, etc. sometimes the counts get a little skewed, but still, Sprint "wins"--meaningless if your phone is not compatible or if you have no need for the country, of course.)