Ever since iOS 7 came out I've been getting 1x a lot lately. Even when I had the iOS 7 beta version 1x came out a lot, and now a lot lately. It's definantly a lot more slower than 3G. Is this roaming?
What does 1x mean on a Sprint iPhone 4S?
1x is short for CDMA2000 1xRTT, which only supports dialup speeds.
When your phone shows the generic term 3G it is using EV-DO which supports low end broadband speeds, hence why 1x is so much slower.
The current technology is LTE, usually dumbed down to the term 4G. I get about 20Mbps down and 10Mbps up over my LTE connection, which blows my 12Mbps down 768Kbps up DSL connection out of the water.