You've signed your internship, booked your flight, and you want your phone to work the moment you land in Barcelona, Berlin, or Lisbon. That's exactly what an eSIM does: buy it before you fly, install it in two minutes, and you're online from the second you land. Here's the honest comparison of the three eSIMs worth it for an internship abroad.
The short answer
| eSIM | Best for | Why |
|---|---|---|
| Airalo | Most interns | The widest country coverage, with simple per-GB plans. The safe default choice, even if you're travelling around Europe. |
| Saily | Security-minded interns | Made by the team behind NordVPN, with an ad and malware blocker. Data and protection in one app. |
| Yesim | Always connected | eSIM plus a built-in VPN, handy if you stream a lot or use apps from back home. |
Why an eSIM instead of a local SIM card?
- Works the moment you land. No SIM shop, no paperwork in a foreign language on day one.
- You keep your number. The eSIM runs alongside your regular SIM, so bank texts and 2FA codes keep coming through.
- It travels with you. A regional or global plan keeps you connected on weekend trips too.
- You control the cost. A fixed data plan, no roaming surprises.
The three options in detail
Airalo
- 200+ countries covered
- Simple per-GB plans
- Country or regional plans
- Set up in the app in two minutes
Saily
- Made by Nord Security (NordVPN)
- Ad and malware blocker
- Protection on cafe WiFi
- Data plus security in one app
Yesim
- Data and VPN in one
- Unlock streaming from home
- Use region-locked apps
- No separate VPN subscription needed
Check first that your phone supports eSIM (most iPhones from the XR onward, along with recent Samsung, Google Pixel, and similar models). In your settings, you'll find the option to add a mobile plan via QR code.
Setup in 2 minutes
- Buy your plan before you fly, while you still have WiFi at home.
- Add the eSIM via QR code in your phone's settings.
- Label it "Internship" so you can switch between plans easily.
- Keep your home SIM active for calls and 2FA, and set the eSIM as your data line.
- Land, turn on data, done.
In short
Most interns are well served by Airalo. If security matters to you, go with Saily, and if you want streaming and a VPN, choose Yesim.
All Intern Deals in One Place →Frequently Asked Questions
Do I need an eSIM, or is a local SIM enough?
Most interns use an eSIM for the first few weeks, because it works right away. After that, you can decide, with no time pressure, whether a local contract makes sense.
How much data do I need?
With WiFi at the office and at home, 5 to 10 GB a month is usually enough. If you tether or stream on mobile data, choose a bigger or unlimited plan.
Will WhatsApp and banking codes still work?
Yes. Keep your home SIM active for calls and texts. The eSIM only carries data, so your number and 2FA codes stay exactly the same.
Does it work on weekend trips?
A single-country plan won't cover that. Choose a regional or global plan, and one eSIM covers the whole trip.
Setting up your whole internship, not just your phone? Save all your deals in one place in your dashboard: banking, insurance, housing, language, and more.