Unlimited Data eSIM: The Best Way to Stay Connected While Traveling
April 14, 2025
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Whether you’re backpacking through Southeast Asia, working remotely from Spain, or exploring markets in Morocco, one thing’s for sure: you need reliable, fast data. But juggling SIM cards or risking massive roaming charges? That’s yesterday’s problem. Meet the solution: KnowRoaming's Global Unlimited Data eSIM.
What Is an Unlimited Data eSIM?
An eSIM, or embedded SIM is a digital version of a traditional SIM card. You use your eSIM to download network information directly to your device. So it allows you to access mobile networks without inserting a physical SIM.
An unlimited data eSIM takes it one step further, offering you endless data while traveling internationally. That means no roaming fees, no overage fees, and no fear of running out of data halfway through uploading your travel vlog.
Unlike fixed data plans that restrict usage, unlimited eSIMs give you the flexibility to stream, video call, and navigate without limits.
Benefits of eSIMs for Unlimited Data Users
Still wondering why an eSIM is the go-to for travelers needing lots of data? Here’s why:
1. No physical SIM swapping
2. Automatic in-app installation (download our app on IOS or Android)
3. Roam across multiple countries on one plan (see our Global Unlimited eSIM plans)
4. Keep your physical SIM for calls and text messages
5. Cheaper than your carrier’s international roaming package
6. Easily top up, extend or switch plans instantly
Click here to read all of the benefits of eSIM.

Choosing the Best Unlimited Data eSIM
When selecting the best eSIM for international travel, you want:
Reliable coverage across the globe
Transparent pricing
Flexible data plans
24/7 support
Easy management via app
KnowRoaming eSIMs offer all of the above. Making our eSIM the best Unlimited Data eSIM for Global Travel.
Don't believe us? Read verified KnowRoaming eSIM reviews here.
How to Install and Set Up an eSIM with KnowRoaming
Setting up an eSIM is simple and takes just a few minutes.
We will send you detailed installation guides depending on your cell phone brand.
Here are general guidelines on how to install your eSIM automatically using our app:
How to Install eSIM with the KnowRoaming App:
1. Download the KnowRoaming App: iOS or Android
2. Choose your plan
3. Complete your purchase.
4. Tap “Install eSIM”
5. Allow your phone to download and activate it
6. Set it as your primary data line in cellular settings
How to Set Up eSIM on iPhone: Go to Settings > Cellular > Add eSIM
How to Set Up eSIM on Android: Open Network Settings > Mobile Network > Add Carrier

Manage Everything in One App: The Best App for International eSIMs
With the KnowRoaming app, you can:
Purchase an eSIM anytime
View your usage
Top up instantly
Contact 24/7 support
It’s the one app every international traveler should have.
Troubleshooting & Support
Running into issues? We’ve got your back:
Not connecting? Try restarting your phone or switching airplane mode on/off.
Activation failed? Ensure your phone supports eSIM.
Need help? Our support team is online 24/7.
How Much Does an eSIM Cost?
The cost of an eSIM depends on your destination, data needs, and duration of travel.
Here’s what to expect:
Short-term plans (fixed data): starting from $2.00 USD
Unlimited data eSIMs: starting at $4 depending on region and length of validity
Regional eSIMs: Regional eSIMs like our Europe eSIM or Global eSIM, are great for multi-country tips. These start at $5.50 USD
Top-ups available instantly via the KnowRoaming app
Unlike mobile providers that charge daily roaming fees, KnowRoaming gives you full transparency with no hidden costs.
How much data do I need while traveling?
A common question: what amount of data do I need when I travel?
It depends on your habits. Here’s a quick breakdown:
Light Usage (3–5GB/week):
Checking Google Maps
Messaging on WhatsApp
Light web browsing
Moderate Usage (5–10GB/week):
Occasional video streaming
Instagram Stories
Google Translate & trip planning
Heavy Usage (10GB+ or Unlimited):
Uploading daily videos or vlogs
Working remotely
Streaming Netflix, Zoom calls, and using hotspot
If you don’t want to track usage or risk hitting a cap, the smartest choice is a KnowRoaming unlimited data eSIM. It gives you unlimited peace of mind, whether you're in Lisbon or London.
How Travel eSIM Works with Unlimited Data
So, how does a travel eSIM work?
Instead of dealing with physical SIM cards, KnowRoaming provides you with a digital SIM profile. Think of it as downloading a set of instructions directly to your phone. When you purchase a KnowRoaming Unlimited Data eSIM, you're buying access to their vast network of partner mobile operators around the world. Here's a simplified breakdown:
Getting Things Set Up:
We offers flexible setup options to get you connected quickly. You can easily install your eSIM by scanning a QR code provided after purchase. This is a secure and efficient way to download your eSIM profile directly to your device.
Alternatively we also offer an in-app automatic installation feature. This process eliminates the need for manual QR code scanning, allowing you to activate your eSIM with just a few taps within the KnowRoaming app (available on IOS and Android.)
Automatic Network Connection:
Our system intelligently selects the best available network in your area. You don't have to manually search for or switch networks, our eSIM does it for you.
Seamless Roaming, Simplified:
Even if your phone displays "roaming," here at KnowRoaming we handle the behind-the-scenes complexities. We've arranged favorable roaming agreements with our partners, so you won't incur surprise charges. Essentially, we've taken the hassle out of roaming.
Managing Through KnowRoaming:
We provide a platform to manage your eSIM, monitor data usage, and handle your account, making it easy to stay in control.
In short, KnowRoaming's travel eSIM eliminates the need for physical SIMs and the headaches of traditional roaming. We handle the network connections and data arrangements, so you can enjoy seamless, unlimited data access during your travels.
FAQs About Unlimited Data eSIMs
Can I use this as a hotspot?
Yes, many of our unlimited plans support tethering. Check the plan details.
Can I keep my WhatsApp number?
Yes! Your eSIM provides data while your regular SIM stays active for WhatsApp and SMS.
Do I need to turn on roaming?
Not for your physical SIM. Your eSIM manages its own roaming automatically. But if needed, here's how to turn on roaming on iPhone.

Best Way to Use Your Cellphone for a Europe Vacation
If you're planning a European adventure, you're probably asking:
What's the best way to use my cellphone in Europe without paying a fortune or swapping SIM cards in every country?
Here’s the best way to stay connected in Europe:
Use a KnowRoaming Europe eSIM for instant, reliable data in 35+ countries
Keep your home SIM card active for text messages and two-factor authentication
Turn off roaming for your home line to avoid surprise charges
Use WhatsApp, Google Maps, Uber, and Translate without limits
Top up or manage your plan easily through the KnowRoaming app (available on IOS and Android)
This setup gives you the freedom to move through France, Italy, Spain, and beyond, all with one digital SIM and no physical hassle.
Ditch the Roaming Fees: Save Big with eSIM
Roaming can cost travelers $5–$15 per day, depending on your home carrier. Over a two-week trip, that’s up to $210, and that’s without even getting unlimited data.
Common Questions:
1. How much are roaming fees? → $5 to $15/day
2. How much are roaming charges? → Charges vary by country and carrier, but they add up fast
3. How to turn on roaming on iPhone?
Go to Settings > Cellular > Cellular Data Options
Toggle on Data Roaming
(But you won’t need this if you’re using an eSIM!)
With a KnowRoaming global unlimited data eSIM, your roaming worries disappear. You get seamless connectivity in 135+ destinations with no extra charges.
Travel Without Limits
For travelers seeking reliable connectivity, KnowRoaming offers tailored eSIM solutions. Our regional UK and Europe SIM option covers 39 countries, simplifying travel across the continent. Additionally, our best eSIM card for Asia travel provides coverage in 15+ countries, ensuring you stay connected throughout your Asian adventures. KnowRoaming's global eSIM options also offer broad coverage for those traveling beyond these regions.
Ready to roam smarter? Get Your Unlimited Data eSIM Today