Travel has gotten easier in so many ways… but figuring out how to stay connected abroad can still feel confusing. Let’s walk through how to use an eSIM and why you might want to!
For years, I traveled without an eSIM. I downloaded Google Maps ahead of time, screenshotted boarding passes, and relied on hotel WiFi and cafés. It worked — technically. But it also meant stress, hunting for signals, and that uneasy feeling of not being able to look something up when I needed to or call a bank on the go when a transfer didn’t go through. Trust me, that happens!
Now that I’ve used eSIMs for travel, I see why so many travelers consider them essential. Here’s a simple, practical guide to what an eSIM is, whether you actually need one, and how to use it.
What Is an eSIM?
An eSIM (embedded SIM) is a digital SIM card built into your phone. Instead of removing your physical SIM and inserting a local one, you download a mobile data plan directly to your device.
That means:
- No swapping tiny cards
- No airport kiosks
- No hunting for a phone store in a new country
- Your data can work the moment you land
It’s one of those modern travel tools that removes friction you didn’t realize you were tolerating.
Do You Actually Need an eSIM?
Not everyone does — but many travelers benefit more than they expect.
An eSIM is especially helpful if you are:
- Visiting multiple countries on one trip
- Traveling with kids (maps + rideshares + communication)
- Working remotely while traveling
- Arriving late at night
- Landing somewhere unfamiliar
- Taking a cruise and needing data in ports
- Planning to rent a car and drive
You might be fine without one if:
- You’re in one country for months and can get a local SIM
- Your carrier includes affordable international roaming
- You’re comfortable using only WiFi
I can travel without one. I just don’t want to anymore. Even if I don’t think I will need data, having just a little as backup is extremely reassuring.
How I Traveled Without an eSIM Before
This might sound familiar:
- Downloaded Google Maps offline
- Took screenshots of tickets and directions
- Used café WiFi
- Asked hotel staff to help book rides
- Messaged people only when connected
It works — but you have to plan every detail ahead. Any surprise (wrong bus, delayed train, restaurant change) becomes harder. We learned this many times and had others worrying about us when our arrival was delayed!
An eSIM removes that constant “I hope I find WiFi” feeling.
How to Use an eSIM (Step by Step)
It’s simpler than most people expect!
1️⃣ Check if your phone supports eSIM
Most newer iPhones and many Androids do.
2️⃣ Buy a plan
You choose a country or region plan. I personally use Airalo because:
- It’s easy to set up
- Works in many countries
- No contracts
- Good pricing for short trips or just minimal data as a backup
(If you try Airalo, you can get $3 off your first plan with my referral code COFFEE2397.)
You can buy your eSIM before you leave and install it early — it won’t activate until it connects to a network in your destination country. This means you land ready instead of trying to set it up at the airport.
3️⃣ Install the eSIM
You’ll get a QR code or install through an app. This adds the plan to your phone.
4️⃣ Turn it on when you land
Switch to the eSIM for data in settings. The app will provide exact instructions on how to do this. (Which I screenshotted .. just in case!)
5️⃣ Keep your home SIM active (optional)
You can still receive texts while using the eSIM for data.
That’s it.
eSIM vs Physical SIM Cards
| eSIM | Physical SIM |
|---|---|
| Instant setup | Must find a store |
| No swapping cards | Easy to lose SIM |
| Works across countries | Often single-country |
| Ready before landing | Setup after arrival |
Best eSIM Options for Travelers
There are several providers, but I look for:
- Easy setup
- Clear pricing
- Country or regional coverage
- Good reviews
Airalo is the one I use most often especially when navigating Japan recently. It’s straightforward and designed for travelers. If you decide to try it, you can get $3 off your first eSIM with my referral code COFFEE2397.
When an eSIM Might Not Be Worth It
- You only use hotel WiFi
- You’re staying long-term and will get a local plan
- Your provider offers free roaming
It’s a convenience tool, not a requirement.
My Honest Take After Traveling Both Ways
Traveling without data is possible. But having it:
- Reduces stress
- Helps you adapt to changes
- Makes navigation easy
- Improves safety
It’s one of those small travel upgrades that makes a big difference.
FAQs
Can I keep my regular SIM and use an eSIM at the same time?
Yes. Most modern phones support dual SIM (physical SIM + eSIM). You can keep your home number active while using the eSIM for data.
Will an eSIM give me a phone number for calls and texts?
Most travel eSIM plans are data-only. You can still call and message using apps like WhatsApp, FaceTime, Messenger, or iMessage.
When should I install my eSIM?
Install it before you leave so it’s ready. Many plans activate when they connect to a supported network at your destination.
What if I’m visiting multiple countries?
Choose a regional plan (if available) or buy separate country plans and switch as you cross borders.
Does an eSIM work without WiFi?
Once the plan is active, yes. But you usually need WiFi (or existing data) to download/install the eSIM initially.
What if my phone is locked?
Locked phones usually can’t use international eSIM plans. You’ll need an unlocked device or use your carrier’s roaming.