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4G vs 5G Networks: The Future of Connectivity

Navdeep Singh Gill | 20 October 2023

4G vs 5G Networks


In today's digital age, the need for faster and more reliable network connectivity is more crucial than ever. Whether you're streaming video content, playing online games, or running a business, the quality of your experience is largely dependent on the speed and reliability of your network connection. With the advent of 5G technology, the conversation around network capabilities has become more relevant than ever. So, how does 5G compare to its predecessor, 4G? Here’s an in-depth comparison between 4G and 5G networks, examining speed, latency, coverage, and other key factors.


4G or 'Fourth Generation' networks brought a substantial leap in speed compared to 3G, offering maximum download speeds of up to 100 Mbps. For the average consumer, this means quicker downloads, smoother streaming, and a generally more seamless online experience.
5G technology promises a dramatic uptick in speed, potentially up to 10 Gbps, though real-world applications are currently ranging between 50 Mbps to 2 Gbps. This means you could potentially download a full-length HD movie in a matter of seconds, as opposed to minutes or even hours on previous network generations.


4G networks are slow to respond. This is called latency, and it's typically around 30-50 milliseconds. This may not seem like a long time, but it can be a problem for tasks that require a real-time response, like gaming or augmented reality.
5G networks are much faster to respond. Latency is as low as 1 millisecond, which makes 5G ideal for applications like real-time remote control in factories, medical surgeries, and live data streaming.


4G networks have a well-established infrastructure, offering extensive coverage. Whether you are in an urban or rural setting, the likelihood is high that you will have access to a 4G network.
5G technology is still in its rollout phase. Initial deployment is centred around high-density areas like cities and large towns. Moreover, the higher frequency bands used in 5G do not travel as far as 4G wavelengths, necessitating a more densely packed array of towers and antennas, which can be a disadvantage in terms of broad coverage.


4G networks are quite reliable for most typical uses today including browsing, streaming, and downloading. However, during peak times or in densely populated areas, you might experience a decrease in speed or quality.
5G aims to offer "network slicing," which means it can allocate a portion of its network for specific tasks, making it highly reliable for critical applications like emergency services and industrial automation where an interruption in service can have severe consequences.

Energy Efficiency

4G networks were not designed with energy efficiency as a top priority. The large-scale infrastructure required to maintain 4G services consumes substantial energy.
5G has been developed with a focus on energy efficiency. The technology aims to deliver up to 90% energy savings per service provided, making it more sustainable in the long run.


As 4G technology is well-established, the cost of 4G-enabled devices and data plans has decreased over time, making it widely accessible.
Currently, 5G technology is more expensive to implement and maintain, leading to pricier devices and data plans. However, as the technology matures and becomes more widespread, these costs are expected to go down.

From 4G to 5G: Evolution of Networks

Both 4G and 5G have their own sets of advantages and drawbacks. While 4G provides a reliable and widely available network for today's needs, 5G promises a future of faster speeds, lower latency, and greater reliability for a variety of applications beyond just smartphones. However, it will take time for 5G to become as widespread and affordable as 4G. Until then, both networks will coexist, providing consumers with a range of options to fit their specific needs.

Unpacking the Technical Intricacies

Built on Long-Term Evolution (LTE) technology, 4G was developed to replace 3G and provide a quicker, more reliable method of wireless communication. LTE uses OFDM (Orthogonal Frequency Division Multiplexing) and allows for higher data rates and better use of the spectrum.
5G technology goes a step further, employing a new kind of architecture known as New Radio (NR), which supports millimetre-wave frequencies. This increases bandwidth availability and permits more devices to be connected simultaneously. Furthermore, 5G introduces the concept of beamforming, a technique that focuses a wireless signal towards a specific receiving device rather than spreading it in all directions.

Exploring Real-world Applications

4G already made streaming services like Netflix and Spotify more usable on mobile devices, turning smartphones into potent tools for entertainment, business, and communication. It also paved the way for the "gig economy," giving rise to app-based services like Uber.
5G will make an even broader impact, particularly in sectors requiring real-time data and remote operations. Examples include telemedicine, where 5G could enable doctors to perform complex
procedures remotely through robotic arms, or in agriculture, where farmers can use drones for real-time monitoring of large areas.

Internet of Things, refers to the collective network of connected devices and the technology that facilitates communication between devices and the cloud, as well as between the devices themselves.

The Evolution of IoT Devices

While 4G did bring some support for IoT (Internet of Things) devices, it was still somewhat limited in terms of handling many devices simultaneously.
5G will revolutionize the IoT landscape by enabling seamless communication between devices. This will give a significant boost to smart homes, smart cities, and industrial IoT, providing a level of interconnectivity that 4G could never achieve.

Battery Life

4G networks, while efficient for data transmission, can be a drain on battery life due to the constant need for high power to maintain data speeds.
5G is designed to be more energy-efficient, allowing for longer battery life. However, this will only become evident as the technology matures and becomes optimized for various use-cases.

Security Concerns

4G networks have their share of vulnerabilities, but they are generally considered secure for most applications. The encryption methods used in 4G are robust, providing a secure channel for data transmission.
5G promises even stronger encryption and the potential for greater security measures, thanks to its layered approach to data transmission. However, the increased complexity also opens more potential points of attack, necessitating a more robust security framework.

5G is the 5th generation mobile network. It is a new global wireless standard after 1G, 2G, 3G, and 4G networks. 5G enables a new kind of network that is designed to connect virtually everyone and everything together including machines, objects, and devices.


The transition from 4G to 5G won't happen overnight. For the foreseeable future, these technologies will coexist, each serving needs and use-cases. While 4G will continue to provide more than adequate service for everyday tasks, 5G will increasingly become the network of choice for next-generation applications requiring the highest speeds, lowest latencies, and seamless device interconnectivity.
Both 4G and 5G networks have unique strengths and limitations. As consumers, understanding these can help us make more informed decisions. For businesses and industries, leveraging both can lead to more efficient operations and open doors to innovation.