As of 2015, LG makes a variety of Optimus cellphones that can work on a 4G network, including the LG Optimus F60 and the LG Optimus G Pro. 4G network capability depends on the model.
Both the LG Optimus F60 and the LG Optimus G Pro mobile phones can also access a 4G LTE network. These two cellphones are GSM compatible, and the LG Optimus Pro can reach download speeds of 21 megabytes per second. The LG Optimus F60 can also work on 2G and 3G networks. The notable difference between these two LG mobile phones is that the processing speed of the LG Optimus G Pro is faster than the CPU of the LG Optimus F60.