I conducted tests using my Sprint EPIC 4G, my friend's T-Mobile MyTouch 4G, my other friend's T-Mobile Vibrant, my own AT&T Backflip, my cousin's Droid X and his Pantech UML290 for Verizon.
THE RESULTS:
Average 3G (EVDO Rev. A): 800 Kbps - 2 Mbps down, 400 Kbps - 800 Kbps up
Average 3G (HSDPA 7.2): 900 Mbps - 3 Mbps down, 600 Mbps - 1 Mbps up
Average 4G (Sprint WiMax) : 4 Mbps - 8 Mbps down, 900 Kbps - 3 Mbps up
Average 4G (T-Mobile HSPA+): 3 Mbps - 7 Mbps, 800 Kbps - 2 Mbps up
Average 4G (Verizon LTE) 5 Mbps - 10 Mbps down, 1 Mbps - 4 Mbps up
Some iPhone fanboy claims that AT&T's 3G network can be as fast as Sprint's 4G network are partially true, but it takes AT&T 3G's best day to match what Sprint 4G gets on its worst day.
THE RESULTS:
Average 3G (EVDO Rev. A): 800 Kbps - 2 Mbps down, 400 Kbps - 800 Kbps up
Average 3G (HSDPA 7.2): 900 Mbps - 3 Mbps down, 600 Mbps - 1 Mbps up
Average 4G (Sprint WiMax) : 4 Mbps - 8 Mbps down, 900 Kbps - 3 Mbps up
Average 4G (T-Mobile HSPA+): 3 Mbps - 7 Mbps, 800 Kbps - 2 Mbps up
Average 4G (Verizon LTE) 5 Mbps - 10 Mbps down, 1 Mbps - 4 Mbps up
Some iPhone fanboy claims that AT&T's 3G network can be as fast as Sprint's 4G network are partially true, but it takes AT&T 3G's best day to match what Sprint 4G gets on its worst day.