You see "5G" on an eSIM product page and assume you'll be traveling at top speed, but the reality is more nuanced. An eSIM being 5G-capable isn't enough: your phone, the local operator, and even your current location all play a role. In this guide, we explain what real speed you'll actually experience while traveling and when 5G makes a difference versus when 4G is more than enough.
Does an eSIM really provide 5G?
Yes, an eSIM can provide real 5G as long as three conditions are met simultaneously: the plan includes it, your phone is 5G compatible, and there is 5G coverage from the local operator where you are. If any of these fail, your connection will drop to 4G, which is still fast enough for most uses.
The confusion arises because the eSIM is just the "packaging": technically, it's a profile that connects your phone to a country's operator network. That network determines whether it gives you 5G, 4G, or something worse. That's why the same eSIM can get 5G in the center of a capital city and 4G in a village, without anything changing on your phone. Many travel eSIM plans also intentionally limit the connection to 4G to control costs, so it's worth reading the product description. If you're still wondering what an eSIM is exactly, that guide provides the basics before delving into speed.
What affects real speed?
The speed you see on your screen is the sum of several factors, not just the "5G" label. The local operator, the 5G band used, network congestion in the area, and the distance to the antenna weigh as much or more than the plan you purchase. That's why two people with the same eSIM can experience very different speeds on different streets in the same city.
- Local network: which operator the eSIM connects you to and what 5G coverage that operator has there.
- Your phone: whether it supports the country's 5G bands (they are not all the same across regions).
- Area and time: urban center versus rural, and peak hours versus early morning.
- The plan: some cap speed at 4G or reduce it after a certain usage ("fair use").
The practical conclusion is not to obsess over the phone's logo. Even if it says 5G at the top, the real speed depends on the whole picture. The good news is that for browsing, maps, social media, and HD streaming, good 4G is more than sufficient.
Which phones take advantage of 5G?
To get the most out of 5G, you need a phone that supports it and is also eSIM compatible. Most recent high-end and mid-range models qualify: iPhone 12 and later, recent Samsung Galaxy S series, modern Google Pixels, and many Xiaomi, Redmi, and Poco phones with "5G" in their name. Older eSIM-compatible models usually stick to 4G.
| Phone | eSIM | 5G |
|---|---|---|
| iPhone 12 and later | Yes | Yes |
| Samsung Galaxy S24 / S25 | Yes | Yes |
| Recent Google Pixel | Yes | Yes |
| Redmi / Poco "5G" | Depends on model | Yes |
| iPhone XS / XR | Yes | No (4G) |
Be careful with bands: a phone bought in Europe might not support all 5G bands in, for example, the US or Asia. You will still connect, but perhaps on 4G. This is normal and doesn't mean the eSIM is faulty.
To ensure your phone supports eSIM before purchasing a plan, review the list of eSIM-compatible phones. And if you have a specific model, we have dedicated guides for Samsung Galaxy S24 and S25 and for Google Pixel.
5G vs 4G: Will you notice the difference?
For typical travel use, the inconvenient truth is that you will barely notice the difference. Modern 4G already handles maps, WhatsApp, Instagram, Netflix in HD, and video calls without a hitch. 5G shines when downloading large files, uploading heavy videos to the cloud, or using your phone as a router for a laptop with 4K streaming, things that are less common on vacation.
In other words: if you're traveling for tourism, a well-covered 4G plan will give you a great and probably cheaper experience. If you're traveling for work, uploading a lot of heavy content, or intensively sharing your connection, then 5G justifies its place. If you're going to use your phone as a hotspot, it's worth comparing it with other options in eSIM vs. portable WiFi, as data sharing and speed vary depending on the scenario.
How to check your speed
Checking your network is easy and prevents you from complaining about the eSIM when the problem is the area's coverage. Look at the network indicator at the top (5G, LTE/4G) and, if you want numbers, run a speed test with an app like Speedtest as soon as you connect. Repeat the test in another area to see if it changes.
- Check the network symbol in the top bar of your phone (5G or 4G/LTE).
- Open a speed test app and measure upload and download speeds.
- Repeat in another street or neighborhood; you'll see it varies considerably.
- If it's slow everywhere, restart your phone or manually select the network in settings.
If you still don't have decent data after this, the problem might be with the configuration, not the speed. In that case, the guide on common eSIM problems will help you rule out typical causes like data roaming being off or an incorrectly set APN.
Tips for faster connection
While you can't control the operator's antenna, you can do several things to get the most out of your connection while traveling. Most are one-minute adjustments that make the difference between a smooth experience and a choppy one.
- Enable 5G in Settings > Mobile Data > Options > Voice & Data if your phone allows it.
- If a location has poor service, try to manually fix the network instead of leaving it on automatic.
- Save heavy streaming and large downloads for hotel Wi-Fi.
- Close apps running in the background to avoid saturating the connection.
- In rural areas, don't expect 5G: lower your expectations and prioritize loading offline maps.
With these habits, even a 4G eSIM will give you a fast and stable experience for everything you do on vacation.
Frequently Asked Questions
Are all eSIMs 5G?
No. Some travel eSIMs are intentionally limited to 4G to control costs, even if your phone and the local network support 5G. Read the plan details: if you want 5G, look for it to be explicitly stated. Still, modern 4G is more than enough for maps, social media, and HD streaming during a normal trip.
Why is my eSIM on 4G if it's 5G?
Because one of three requirements is missing: 5G coverage from the local operator in that area, a phone compatible with the country's 5G bands, or a plan that actually includes 5G. It's common for a European phone to drop to 4G in Asia or the US due to different bands. This doesn't mean the eSIM is broken.
Do I need 5G for travel?
For tourism, almost never. 4G already handles maps, messaging, social media, and high-definition video without issues. 5G only makes a difference if you upload very heavy files, use your phone as a router for multiple devices, or work with video. For most, a good 4G plan offers better value for money.
What speed will I get with a travel eSIM?
It depends on the local network, the area, and the time, not just the plan's label. In a capital city with 5G, you might see hundreds of Mbps; in a village with 4G, a few tens. Both figures are sufficient for tourist use. Run a speed test when you connect to find out what you're actually getting.
How do I activate 5G on my phone?
On iPhone, go to Settings > Mobile Data > Options > Voice & Data and choose 5G. On Android, look for Settings > Mobile Networks > Preferred network type and select 5G/4G. If the option doesn't appear, your phone or that line doesn't support 5G. Even if activated, you'll see 4G where there's no 5G coverage.
Conclusion
An eSIM marked "5G" doesn't guarantee maximum speed: it depends on your phone, the local operator, and your location. For travel, good 4G covers almost everything, and 5G only shines in heavy use cases. Check your phone's compatibility, read the plan's details, and if you're looking for a reliable, hassle-free connection, explore available travel eSIMs and choose the one that fits your destination and connection needs.
