All About eSIMs: A Simple Guide to Staying Connected While You Travel

Staying connected while traveling internationally has gotten so much easier over the past few years, and eSIMs are a big part of that shift.
If you’ve ever dealt with expensive roaming charges, hunting down a local SIM card after a long flight, or trying to navigate a new destination without data… this is one of those small upgrades that can completely change your experience.
Let’s walk through exactly what an eSIM is, why it’s worth using, and how to set one up before your next trip.
What Is an eSIM?
An eSIM (embedded SIM) is a digital SIM card that’s built directly into your phone.
Instead of physically swapping out a SIM card, you can download a data plan straight to your device, usually in just a few minutes.
Providers like Airalo make it easy to purchase international data plans for specific countries or regions before you even leave home.
You can use this link to get $3 off your first eSim: https://airalo.go.link/7u89a
Why Travelers Love eSIMs
Once you use an eSIM, it’s hard to go back. It simplifies so many parts of travel that used to feel complicated.
1. You’re connected the moment you land
No searching for WiFi. No waiting in line at the airport. Your data is ready to go as soon as you arrive.
2. It’s often more affordable than roaming
International roaming plans from major carriers can add up quickly. eSIMs usually offer much more predictable pricing.
3. No physical SIM cards to deal with
No tiny tools, no swapping cards, no risk of losing your primary SIM.
4. Navigation, reservations, and communication, handled
From pulling up directions to confirming reservations or calling a ride, everything is still right at your fingertips, despite being in a different country.
Things to Know Before You Buy
Before purchasing an eSIM, there are a few quick things to check:
- Make sure your phone is eSIM-compatible (most newer iPhones and many Android devices are)
- Ensure your phone is unlocked (so it can accept other carriers)
- Decide how much data you’ll need based on your travel style (you can always “top up” later, but it sometimes becomes more expensive than just going for the unlimited plan to begin with)
If you’re unsure, I’m always happy to guide you toward the right option when planning your trip.
How to Set Up an eSIM (Step-by-Step)
Setting up an eSIM is much simpler than it sounds. Here’s exactly how it works:
1. Choose your provider
Select a plan through a trusted provider like Airalo or Holafly based on your destination and length of stay.
2. Purchase your plan
You’ll receive a QR code or installation instructions after checkout.
3. Install the eSIM
On your phone:
- Go to Settings
- Tap Cellular (or Mobile Data)
- Select Add eSIM or Add Cellular Plan
- Scan the QR code provided
4. Label your plan (optional, but helpful)
You can name it something like “Italy Trip” or “Europe Data” to keep things organized.
5. Set your data line
Choose the eSIM as your data line while keeping your primary number active for calls/texts if needed.
6. Turn on data roaming for the eSIM
This is usually required for international plans to work properly. Make sure your primary line has roaming and data-switching turned OFF.
When Should You Install It?
I recommend installing your eSIM before you leave, but waiting to activate it until you arrive (depending on the provider’s instructions).
This way, everything is ready—and you’re not trying to figure it out after a long travel day.
A Few Helpful Tips
- 📱 Download maps ahead of time (just in case)
- 🔋 Keep a portable charger with you—you’ll be using your phone more
- 💬 Use apps like WhatsApp or iMessage for easy communication over data
- 📊 Keep an eye on your data usage if your plan has limits
Is an eSIM Right for Every Trip?
For most international trips, yes.
The only times you might consider another option:
- If your phone isn’t compatible
- If you’re traveling for an extended period and need a local carrier plan
- If you require heavy calling/texting rather than data-based communication
Otherwise, it’s one of the easiest ways to make your trip smoother.
If you’d like having every detail of your trip handled for you, I’d love to help you at my travel company, Styled Getaways! You can start here:
Affiliate Disclosure
This post may contain affiliate links, which means I may earn a small commission if you make a purchase through them—at no additional cost to you. I only recommend products and services that I personally use, trust, or believe will genuinely enhance your travel experience. Your support helps keep Styled Getaways and Cupcake and Carry-On running, and I truly appreciate it 🤍
Disclaimer
The information in this guide is provided for general informational purposes only and is based on personal experience and research at the time of writing. While I do my best to keep everything accurate and up to date, mobile coverage, eSIM compatibility, pricing, and service quality can vary by device, provider, and destination.
It’s always a good idea to double-check details directly with your chosen provider before purchasing. Styled Getaways is not responsible for any issues related to service interruptions, compatibility, or provider performance.