Network
2G
GSM 850 / 900 / 1800 / 1900 - all versions
3G
HSDPA 850 / 900 / 1900 / 2100 - AT&T
HSDPA 850 / 900 / 1900 / 2100 - EU
HSDPA 850 / 900 / 1700 / 1900 / 2100 - T-Mobile
4G
2, 4, 5, 17 - AT&T
3, 7, 20 - EU
2, 4, 17 - T-Mobile
Speed
HSPA 42.2/5.76 Mbps, LTE Cat3 100/50 Mbps, EV-DO Rev.A 3.1 Mbps
Technology
GSM / HSPA / LTE