system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: the difference between 2G, 3G, and 4G. I understand that they get better but what makes them better? What would prevent me from taking an old razr phone and putting it on 4G?
gpt
G is for Generation, different generations of cellular data transfer technology. 4G isnt even truly a new generation its more of an expansion on 3G technology. When you buy a phone it has a chip in it for data/cell service and an outdated chip will not work with the new protocols and requirements for a 4G connection type if it wasnt made for one. Its as simple as that.