Why Is My 5G Connection Slower Than 4G and How Do You Fix It?

You see 5G on your phone and naturally expect everything to fly. 

You open YouTube. It buffers. 

You open TikTok. The video loads halfway and gives up. 

You try Google Maps. It starts acting like you are in the middle of nowhere. 

Then your mate next to you is on 4G, scrolling perfectly fine. 

At that point, the question is fair: why is 5G slower than 4G when 5G is supposed to be better? 

The simple answer is this: 5G can be faster than 4G, but only when the signal is strong, the area is covered properly, and the network is not too busy. If the 5G signal is weak, crowded, or blocked by buildings, a strong 4G connection can easily feel faster. 

That does not mean your phone is broken. It usually means your phone is connected to poor 5G instead of good 4G. 

Quick Facts Before We Get Into It 

Here are a few useful facts that explain why this happens: 

That last point is the big one. 

Your phone showing 5G does not always mean “fast.” It can simply mean your phone has found a 5G signal somewhere nearby. The actual experience depends on signal strength. 

Why 5G Can Be Slower Than 4G 

The most common reason is a weak signal. A weak 5G connection can be worse than a strong 4G connection, even though 5G is newer. 

Think of it like this. 

A sports car is faster than a normal car. But if the sports car is stuck in traffic and the normal car has a clear road, the normal car gets there first. 

That is exactly what happens with the mobile signal. 

5G may be the fastest technology, but if your phone is barely holding onto it, your apps will struggle. 

Zara’s Story: The Window Fixed It 

Zara was at work during lunch and tried to watch a quick YouTube video. Her phone showed 5G, but the video kept buffering. She thought the app was broken, then blamed her phone, then blamed the network. 

A colleague told her to move closer to the window. 

Suddenly, the video loaded properly. 

Nothing dramatic happened. The signal was just better near the window. 

That is very common. 5G can struggle indoors, especially in: 

• Flats with thick walls  
• Office buildings  
• Shopping centres  
• Basements  
• Lifts  
• Underground stations  
• Hotels  
• Train carriages  

So if your 5G works better outside than inside, the building is probably blocking the signal. 

5G Can Also Slow Down When Everyone Is Online 

Another big reason is network traffic. 

If you are at a concert, football match, airport, shopping centre, university campus, or busy train station, loads of people are using the same network at the same time. 

Everyone is doing something. 

Uploading stories. Calling Ubers. Sending Snapchats. Checking maps. Streaming music. Refreshing WhatsApp. Trying to load tickets at the gate because, of course, the ticket app chooses that exact moment to act up. 

The network gets packed. 

Your phone may still show 5G, but the speed can drop because too many people are sharing the same network capacity. 

Dan’s Story: 5G at a Gig Was Useless 

Dan went to a gig and had full 5G showing on his phone. Still, WhatsApp messages would not send, Instagram would not refresh, and the ticket app was moving like a snail. 

After the show, he stepped outside and everything started working again. 

His phone was not broken. The venue was just rammed. 

That is why your 5G may feel fine on a quiet street but useless at a packed event. 

Your Phone Might Be Holding Onto Bad 5G 

Phones try to be clever, but sometimes they are stubborn. 

Your phone may stay connected to weak 5G because it thinks 5G is the better option. But in that exact spot, 4G may actually be stronger. 

This is why switching to 4G can sometimes make your internet faster. 

It sounds backward, but it makes sense. 

You are not choosing the newest connection. You are choosing the strongest connection available where you are. 

Apple’s 5G Auto setting is designed to help with this. Apple says 5G Auto can switch your iPhone to LTE when 5G does not provide a noticeably better experience, which can also help save battery.  

In normal words: your phone can sometimes decide, “5G is not worth it here, let’s use 4G instead.” 

And honestly, that is often the right call. 

Common Reasons 5G Feels Slow 

Here is the simple version. 

How to Fix Slow 5G Without Making It Complicated 

You do not need to be a tech person to fix this. Start with the basic stuff first. 

1. Turn Airplane Mode On and Off 

This is the easiest fix. 

Turn on Airplane Mode, wait about 10 seconds, then turn it off again. 

This forces your phone to reconnect to the mobile network. Sometimes your phone is just stuck on a poor connection, and this gives it a fresh start. 

It is basic, but it works. 

2. Restart Your Phone

If Airplane Mode does not help, restart the phone properly. 

Not just locking the screen. Actually, power it off and turn it back on. 

Phones can cling to weak signals, old network sessions, or random glitches. A restart clears the mess. 

3. Move Around Before Changing Settings

Before you start digging through menus, move first. 

Go near a window. Step outside. Walk away from a lift, basement, or packed indoor space. 

Then try the same app again. 

If it suddenly works better, the issue is the signal, not your phone. 

4. Try 4G Instead of 5G

This is the fix people ignore because it feels like going backwards. 

But if 4G is stronger where you are, use it. 

On iPhone, go to: 

Settings > Mobile Service > Mobile Data Options > Voice & Data > 4G/LTE 

On Samsung Galaxy phones, Samsung says you can change the network mode by going to Settings > Connections > Mobile networks > Network mode.  

If 4G loads faster, stay on 4G for a bit. 

There is no prize for suffering on bad 5G. 

5. Check Low Data Mode or Data Saver

Low Data Mode and Data Saver are useful when you want to save data, but they can make things feel restricted. 

Apple says Low Data Mode can be turned on separately for mobile data and Wi-Fi, including 5G mobile data.  

If your apps are loading slowly, check whether this setting is on. 

On iPhone: 

Settings > Mobile Service > Mobile Data Options > Data Mode 

On Android, look for: 

• Data Saver  
• Battery Saver  
• Power Saving Mode  

Turn them off for a few minutes and test again. 

6. Check Your SIM and Plan

To use 5G properly, you need four things: 

• A 5G-ready phone  
• A 5G-ready SIM or eSIM  
• A plan that includes 5G  
• 5G coverage where you are  

Samsung also advises checking that you have the correct data plan and a 5G-compatible SIM, because older SIM cards may not be compatible with 5G plans.  

Imran’s Story: The SIM Was the Problem 

Imran bought a 5G phone and expected everything to be rapid. But his connection kept acting weird. Some places showed 5G, but the speed was poor. 

He checked with his provider and found out his SIM was old. 

Once he replaced it, the connection improved. 

The phone was ready for 5G. The SIM was still living in the past. 

Where Talk Home Mobile Fits In 

This is where choosing the right SIM-only plan matters. 

A lot of people only look at the amount of data. They see 50GB, 100GB, or unlimited and think that is the whole story. 

But real-life mobile experience is bigger than that. You need a plan that gives you the right features and works well where you actually use your phone. 

Talk Home Mobile says its SIM-only plans include a 5G-ready network, no data throttling, no mid-contract price rises, inclusive EU roaming, and VoLTE & Wi-Fi Calling.  

Talk Home also says all its plans come with 5G connectivity at no extra cost, and that users need a 5G-ready device and a Talk Home SIM to use 5G.  

That matters because slow mobile data is not always about the plan being bad. Sometimes it is about coverage, settings, indoor signal, or the phone using weak 5G when 4G would work better. 

If your mobile signal is poor indoors, Wi-Fi Calling can also help with calls when your phone and settings support it. Talk Home says VoLTE and Wi-Fi Calling are included at no extra cost for its customers, though compatible devices and support still matter.  

Quick Fix Checklist 

Before you get annoyed and blame the phone, try this: 

• Turn Airplane Mode on and off  
• Restart your phone  
• Move near a window  
• Step outside if you are indoors  
• Switch from 5G to 4G/LTE  
• Turn off Low Data Mode or Data Saver  
• Turn off Battery Saver temporarily  
• Check your SIM supports 5G  
• Check your plan includes 5G  
• Check coverage in your exact area  
• Update your phone software  

Most of the time, one of these fixes will tell you what is going on. 

5G vs 4G: Which One Should You Use? 

Use the one that works better where you are. 

That sounds too simple, but it is the honest answer. 

The goal is not to stare at a 5G icon. 

The goal is to make your phone work properly. 

Final Thoughts 

If your 5G is slower than 4G, do not panic. 

It usually comes down to a weak signal, busy areas, indoor coverage, phone settings, an old SIM, or your phone holding onto poor 5G when 4G would be better. 

5G can be brilliant. But it is not automatically better in every place, every building, and every moment. 

A strong 4G connection can beat a weak 5G connection easily. 

So try the simple fixes first. Restart your phone. Move closer to a window. Switch to 4G. Check your settings. Check your SIM and plan. Then check coverage. 

That is the practical answer. 

Not fancy. 

Not technical. 

Just useful. 

Frequently Asked Questions 

Why is my 5G slower than 4G? 

Your 5G may be slower because the signal is weak, the area is busy, you are indoors, or your phone is stuck on poor 5G instead of switching to stronger 4G. 

Does the 5G icon always mean fast internet? 

No. The 5G icon only means your phone has detected a 5G network. It does not always mean the signal is strong or the speed will be good. Apple also notes that the 5G icon may rarely appear even when 5G coverage is not actually available.  

Should I switch from 5G to 4G? 

Yes, if 4G works better where you are. A strong 4G signal can be smoother than weak 5G. 

Why is 5G slow indoors? 

Walls, windows, lifts, basements, and large buildings can weaken mobile signal. If 5G improves when you move outside or near a window, the building is probably the issue. 

Can Low Data Mode make 5G slower? 

It can make apps feel more restricted because your phone is trying to reduce data usage. If your internet feels slow, turn Low Data Mode or Data Saver off and test again. 

Do I need a new SIM for 5G? 

Possibly. Some older SIM cards may not work properly with 5G plans. Samsung advises checking that you have a 5G-compatible SIM and the correct data plan.  

Is 5G always better than 4G? 

No. 5G can be much faster when the signal is strong, but 4G can be better if the 5G signal is weak or the area is congested. 

Does Talk Home Mobile support 5G? 

Talk Home Mobile says all its plans include 5G connectivity at no extra cost, provided you have a 5G-ready device and Talk Home SIM.