Help Would this be compatible with T-mobile's 4G network?

[vtension]

I'm a T-mobile customer but I really do not like the looks of the T-mo's Samsung Galaxy SII.

f I buy a Sprint Samsung Epic 4G Touch and unlock it, would it work with T-mobile's 4G network? I know T-mobile runs on AWS 1700/2100 and I've looked at the bands for the samsung epic 4G touch bands and there's 1700/2100 for WCDMA but I'm not sure if this is the same on T-mobile. I'm really uneducated with these things, so if someone could tell me, I'd appreciate it!

Samsung Epic 4G Touch bands:
GSM 850/900/1800/1900 (Quadband) WCDMA (UMTS) 900/1700/2100

T-mobile's Samsung Galaxy SII:
850 MHz;900 MHz;1800 MHz;1900 MHz;UMTS: Band I (2100);UMTS: Band IV (1700/2100);UMTS: Band V (850)

 

[apinkel]

No, sprint runs a CDMA network, T-Mobile is a GSM network. The Epic Touch is CDMA only and will not work on a GSM network.

 

[vtension]

Oh ok, AT&T is GSM. Do you know if AT&T's samsung galaxy s2 would work on T-mobile's 3g or 4g network?

T-mobile's Samsung Galaxy SII
Band (frequency):
850 MHz;900 MHz;1800 MHz;1900 MHz;
UMTS: Band I (2100)
UMTS: Band IV (1700/2100)
UMTS: Band V (850)

AT&T's Samsung Galaxy SII
4G

 

[apinkel]

I don't. I don't have much knowledge of GSM networks... their coverage isn't the greatest here in the midwest so I've gone with the CDMA providers.

 

[Cobravision]

An unlocked at&t g2 would work on Tmo for 3g and maybe 4g. I'm not familiar with the band freqs HSPA+ uses between AT&T and TMo.

If you want an unlocked S2, you might want to import one from Europe. Not sure how easy it is to unlock the AT&T one.