Gone are the days when mobile phones were used mainly for voice calls. Now mobile phones have become smart and millions of people are using the internet through their smartphones. In different countries, the quality and speed of mobile Internet differs depending upon the progress of telecom industry
GPRS, E, 3G and 4G are all indicators of signal strength for downloading and uploading data to your smartphone – for browsing the web, sending/receiving emails, watching videos, etc. This is not the same as the signal strength of actual, old-fashioned phone calls, but the speed with which you can download or upload data using your iPhone, Android phone or other smartphones.
Each generation of data network gets faster. We saw 2G (second Generation) from 1999, 3G from 2001, and started seeing 4G in 2012. 5G is some way off, though.
G in 2G, 3G and 4G stands for the “Generation” of the mobile network. Today, mobile operators have started offering 4G services in the country. A higher number before the 'G' means more power to send out and receive more information and therefore the ability to achieve a higher efficiency through the wireless network.
What about G, E, 3G, H and H+? Check out this table for a summary before we go in depth into their meanings in the next article.
Note 1: 8 Bits = 1 Byte. Hence, you need to divide the above speeds (displayed in bits/s) by 8 to get the speeds in KB/s, MB/s or GB/s.
Note 2: HSPA is further divided into HSDPA (download) and HSUPA (upload ) to denote download and upload speeds respectively.
Note 3: Also, all these download and upload speeds are just theoretical maximum limits and not indicative of the actual real-world speeds. Real-world speeds vary depending upon a lot of factors such as the QoS, signal strength and network congestion.