Difference between 1G 2G 3G 4G technology

"G" stands for "Generation". The main aim of wireless communications is that provides high-quality, reliable communication just like wired communication. As we know that while we have to connect to the internet, the speed of your internet depends upon the signal strength that has been in like 1G,2G,3G,4G,5G etc. Each and every generation is defined as a set of telephone network standards. Basically, the evolution journey started in the year 1979 with 1G technology and it is still continuing to 5G. 1G technology was not used to identify wireless technology until 2G, was released. That was a major jump in technology when the wireless network went from analogue to digital. This post is very important for the evolution of differentiating 1G to 5G.

1G technology: 

1G technology is very fast commercial telecommunication wireless technology and was introduced in the year of 1980s. For the first time, Nippon Telegraph and Telephone introduced it in Tokyo, Japan. In 1983, 1G was introduced in some European countries and in the year of 1983, 1G penetrated the US market.

Generation :
  • First-generation mobile network
Year :
  • 1G was introduced in the year of 1980s
  • 1G employed an analogue radio signal for communication. Technology must be used  AMPS, NMT, TACS
Special Characteristics:
  • 1G is the first wireless communications
  • The speed of 1G  up to 2.4 Kbps
Carrier frequency:
  • 1G uses a carrier frequency of only 30 kHz
  • 1G could be used only for voice calls
  • Telephone required wired connections for communications. After this development, 1G was easy for people to take their phones outdoors.
Switching type:
  •  1G used circuit switching 
  • 1G is not more secure
Advantages :
  • 1G is a simple network element 
  • Limited capacity
  • Not secure
  • Poor battery life
  • Large Phone size
  • 1G is used for Voice calls

2G technology:

2G technology refers to the second generation. It was launched in Finland in the year 1991 which are based on the GSM system. It uses digital signals for voice transmission. The advanced in technology from 1G to 2G introduced many fundamental services that we still use today such as SMS, MMS, internal roaming, call hold, billing, conference calls, long-distance calls etc.

Generation :
  • second generation mobile network
Year :
  • 2G was introduced in the year of 1991s
Special Characteristics :
  • The digital version of 1G technology
  • 2G has used the digital signal for communication with a radio tower. The technology used IS-95 and GSM
  • The maximum transfer rate of 50 Kbps with the help of the GPRS system
Battery power :
  • 2G required low battery power due to the low consumption of the battery by digital signals
Quality :
  • The sound quality is improved and there is no background noise for the user
  • Multimedia features like SMS and MMS
  • Internet access and SIM introduced
Disadvantages :
  • Reduced the tone of a sound
  • Weak signal
  • Unable to handle complex data such as video
Applications :
  • Voice calls
  • Short message browsing
Privacy :
  • 2G improved the privacy of users as the message and MMS were digitally encrypted and the only user can open them
What is new?
  • 2G technology allowed users to send and receive a text messages and also a multimedia message
3G technology:

3G technology refers to the third generation, is based on GSM and was launched in 2000. The aim of this technology was to offer a high-speed data range of about 144 kbps to 2 Mbps. 3G technology is used in many more applications like sharing of digital photos, movies, mobile, computer modem, high-quality voice, and video calls etc.

  • Third-generation mobile network
  • 3G is used IMT200 and WCDMA
Year :
  • 3G was introduced in the year of 2000s
  • 3G is about 3.1 Mbps
Special Characteristics:
  • Digital broadband
  • Speed increments
Switching type:
  • Packet switching expect for air interface
  • Customers will get a high-speed network for the data communication
  • Customers can use all the facilities at the same time
  • Video call and big MMS
  • Cheap call rate in worldwide.
  • Security and reliability are more
  • Good for data-intensive application
  • Always online devices
  • Anywhere access to the internet
  • Building 3G infrastructure was the challenge
  • High Bandwidth Requirement
  • Expensive 3G Phones.
  • Large Cell Phones
Applications :
  • High-quality voice, as well as a video, called
  • View live TV broadcasting on mobile
  • Sharing of digital photos and movies
  • Virtual banking, online selling as well as teleconferencing at work
  • The 3G network can offer real-time multiplayer gaming 

4G technology:

4G technology refers to the fourth generation, of wireless technology that promises expanded multimedia services and higher data rates. Most of us do not like the waiting time that a 2G or 3G network takes for opening the desired page, audio or video over the web. If you are suffering from the issue, then you should not wait any more, enjoy the latest 4G technology with a superfast data speed of approx 10 times the 3G.


  • Fourth-generation mobile network
Year :
  • 4G was introduced in the year of 2009
  • Technology must be used LTE and WiMAX
  • 4G support speed up to 100 Mbps
Special Characteristics:
  • Very high speed 
  • All IP
  • High speed
  • High capacity
  • High-quality streaming video
  • Low-cost per-bit etc.

  • Battery usage is more
  • Hard to implement
  • Need complicated hardware