Question: what are 2g 3g 4g?
Answer: In a nutshell the difference is SPEED. The G in 2G, 3G and 4G stands for Generation, and they refer 2nd, 3rd and 4th generation of wireless technology. The newer generation is faster, more secure and more reliable. ... 2G – Delivered digital signal and offered up to 250Kbps speed. Supports voice, text and data services.