This SIM works in any unlocked GSM phone. Whether you get 3G depends if your phone uses the same frequency spectrum. In the USA, ATT 3G uses a different frequency than T-Mobile 3G which are your only choices for GSM in the US. So do some searching on the frequency your phone uses for 3G and the frequency for T-Mobile's 3G, if it is the same, you'll get 3G. If not, you will only get EDGE network. Example: If you put this SIM in an unlocked iPhone, and configure the settings for T-Mobile, you won't get 3G, but you will get EDGE which is fine for email push updates, map updates, etc. Unfortunately T-Mobile doesn't seem to want iPhone and international users business because they charge the same price for data regardless of the fact that you can't get 3G unless you use a T-Mobile phone (isn't the idea of SIM cards so you can easily switch phones???). With EDGE you only get about 10% of the speed as 3G. Get with the program T-Mobile! Offer EDGE only data plans and more iPhone/international GSM users will buy your pay as you go plans as all the GSM phones I know all support EDGE.
answered 3 years, 6 months ago
32out of 32found this answer helpful.