The difference between 4G vs 5G has been hyped everywhere — but what actually changed, and is it worth upgrading your phone for? Let’s cut through the noise and give you a straight answer.
What is 4G?
4G — which stands for fourth generation mobile network — launched around 2009 and became the global standard for mobile internet throughout the 2010s. It gave us fast enough speeds to stream video, make video calls, and use apps smoothly on our phones.
The average 4G speed is around 20–50 Mbps, which is fast enough for most everyday tasks.
What is 5G?
5G is the fifth generation of mobile networks, rolling out globally from around 2019 onwards. It’s not just an upgrade to 4G — it’s a fundamentally different technology designed for a world where billions of devices need to be connected simultaneously.
The Key Differences
Speed This is the headline difference. 5G can theoretically reach speeds of up to 10 Gbps — that’s up to 100 times faster than 4G. In real-world conditions you’re more likely to see 100–900 Mbps, but that’s still dramatically faster than 4G.
In practical terms — downloading a full HD movie on 4G takes around 7 minutes. On 5G it takes under a minute.
Latency Latency is the delay between sending and receiving data. 4G has a latency of around 30–50 milliseconds. 5G brings this down to as low as 1 millisecond.
This matters enormously for things like online gaming, video calls, and especially future technologies like self-driving cars and remote surgery where every millisecond counts.
Capacity 5G can handle up to one million connected devices per square kilometre compared to around 100,000 for 4G. This is why 5G is considered essential for the future of smart cities, IoT devices, and connected infrastructure.
Coverage This is where 5G currently falls short. 4G coverage is mature and covers most populated areas worldwide. 5G is still being rolled out and coverage is patchy — strong in city centres, weak or non-existent in rural areas.
Battery Usage 5G currently uses more battery than 4G, though this is improving as the technology matures.
Should You Upgrade to 5G?
It depends on where you live and how you use your phone.
If you live in a major city with strong 5G coverage and you stream a lot of video, game online, or work from your phone — yes, 5G is a noticeable upgrade worth having.
If you live in a rural area or small town where 5G coverage is limited, you’ll spend most of your time on 4G anyway, so upgrading purely for 5G isn’t necessary yet.
The Bottom Line
5G is genuinely faster and more capable than 4G — the technology lives up to the promise. But coverage is still catching up with the hype. If you’re due a phone upgrade anyway, getting a 5G-capable phone makes sense as future-proofing. But don’t rush to upgrade just for 5G if your current phone works fine.