Upgrade Your Device from 4G to 5G: What You Need to Know
The transition from 4G to 5G represents one of the most significant advances in mobile connectivity. With promises of faster download speeds, lower latency, and better network capacity, many users are eager to make the switch. However, there is a critical misconception that needs to be addressed upfront: you cannot upgrade a 4G phone to 5G through software or SIM changes alone. This guide explains why, and walks you through what actually works.
The Hard Truth: 4G Phones Cannot Be Upgraded to 5G
If you are hoping to transform your existing 4G phone into a 5G device, you will be disappointed. The simple answer is no—a 4G phone cannot be upgraded to support 5G networks.
The reason is purely hardware-based. 5G connectivity requires dedicated components including a 5G modem, compatible antennas, and RF front-end modules designed specifically for 5G NR (New Radio) protocols. These components are built into the phone during manufacturing and cannot be added or swapped in later.
Even software updates cannot bridge this gap. While system updates can improve performance and add features, they cannot enable your device to connect to a network it was never designed to support. The underlying firmware and modem interface are deeply integrated with the hardware, and older 4G chipsets simply lack the necessary 5G NR signal processing modules.
Can You Use a 5G SIM in a 4G Phone?
This is a common question, and the answer is yes—but with significant limitations. A 5G SIM card is backward compatible and will work in a 4G phone. However, it will only connect to 4G networks. You will not experience any 5G speeds or benefits.
Think of it this way: the SIM card is like a key, but your phone needs the right lock to use it. A 5G SIM in a 4G phone is like having a key to a door that does not exist on your device—it simply will not open anything new.
What You Actually Need for 5G
To genuinely use 5G, you need three essential components working together:
1. A 5G-Compatible Phone
This is the non-negotiable foundation. Your device must have 5G hardware built in. Most flagship and mid-range phones released since 2020 include 5G support, but budget models and older devices may not.
How to check if your phone supports 5G:
For iPhone users: Devices from iPhone 12 onwards support 5G. Go to Settings > General > About and check your model name.
For Android users: Navigate to Settings > Network & Internet > Mobile Network > Preferred Network Type. If 5G appears as an option, your device supports it.
2. A 5G-Enabled Plan
Most carriers now offer 5G access on their standard plans, but some require a specific 5G plan or add-on. Contact your carrier to confirm whether your current plan includes 5G access, or if you need to upgrade.
In many cases, your existing SIM card may already be 5G-compatible. Some carriers require a new 5G SIM to unlock full network access, while others provide 5G automatically without any SIM change.
3. 5G Network Coverage
Even with a 5G phone and plan, you need to be in an area with 5G coverage. 5G deployment is concentrated in major cities and urban zones, though coverage continues to expand.
Before upgrading, check your carrier’s coverage map to see if 5G is available in your area. Without 5G signal nearby, your phone will automatically fall back to 4G.
How to Enable 5G on Your Phone
Once you have a 5G device, 5G plan, and coverage, you may need to enable 5G in your settings.
On iPhone
- Open Settings
- Go to Cellular > Cellular Data Options
- Tap Voice & Data
- Choose your preference:
On Android
- Open Settings
- Navigate to Network & Internet > Mobile Network
- Tap Preferred Network Type
- Select 5G or 5G/LTE/3G/2G (Auto)
Is 5G Actually Worth It?
Before rushing to upgrade, consider the real-world performance. An international study across eight cities found that 5G performance varies significantly depending on operator and location. In some areas, 5G does not offer clear latency benefits over 4G, and the experience depends more on operator decisions than the “5G” label itself.
One technology journalist who finally received 5G signal at home after a six-year wait reported that while latency improved, download speeds were not dramatically faster than 4G LTE. Another study found that 5G download speeds were about 31.92% faster than 4G, while 4G actually had lower latency in some cases.
This does not mean 5G is not valuable—it does offer superior performance for bandwidth-intensive activities like 4K streaming, cloud gaming, and large file downloads. But the improvement may not be as dramatic as marketing suggests.
Tips for Choosing a 5G Phone
If you are ready to upgrade, keep these factors in mind:
- 5G Frequency Band Compatibility: Different countries and carriers use different 5G bands. Confirm the phone supports local network frequencies before purchasing.
- Battery Capacity: 5G consumes more power than 4G. Choose phones with batteries larger than 4000mAh and fast charging support.
- Thermal Management: 5G chips generate more heat. Look for phones with efficient cooling systems.
- Future-Proofing: A 5G phone ensures you can take advantage of network improvements as coverage expands.
Can You Open a 5G Plan Without a 5G Phone?
Yes, carriers allow you to subscribe to 5G plans even with a 4G phone. However, your network experience will remain 4G. You may still benefit from additional perks included in 5G plans, such as video streaming subscriptions, cloud storage, and priority customer service.
The value of upgrading to a 5G plan without a 5G device depends on whether those additional benefits justify the cost. If you primarily want faster network speeds, you will need to upgrade your phone first.
3 thoughts on “How To Upgrade your Device 4G to 5G”