eSIM vs Physical SIM Card: Which Is Better for Travel?
I've bought physical SIM cards in airport shops across four continents. I've been overcharged in Tokyo, underserved in Bali, and completely lost in a Vodafone store in London where I just wanted a prepaid data plan and the guy kept trying to sell me a 24-month contract.
I've also used eSIMs in about 15 countries over the last two years.
So when someone asks me "should I get a SIM card or an eSIM for my trip?"... I have opinions. Strong ones. Let me break it down honestly.
The Short Answer
eSIM wins on convenience by a mile. You set it up before your flight and land already connected. No shops, no language barriers, no fumbling with those impossibly tiny plastic trays.
Physical SIMs used to win on price. That's barely true anymore. eSIM plans have caught up, especially when you factor in the hidden costs of physical SIMs (time wasted, tourist markup, needing multiple cards for multi-country trips).
If you want to understand what an eSIM actually is and how the tech works, I wrote a full explainer here. But for now, let's compare them head to head.
Real Cost Comparison
I've tracked what I've actually spent on data across my last several trips. Here's how it shakes out:
Europe (France/Italy/Spain)
| Option | Data | Price | The Catch |
|---|---|---|---|
| Airport SIM shop | 10-15GB | $20-40 | Single country only, tourist markup |
| Local carrier store | 10-20GB | $15-30 | Need passport, possible wait time |
| GOAN eSIM | 20GB | $29 | Covers 105+ countries, no shop needed |
| Carrier roaming | Pay-per-use | $5-15/day | Adds up horrifyingly fast |
Southeast Asia (Thailand/Vietnam/Bali)
| Option | Data | Price | The Catch |
|---|---|---|---|
| Airport SIM (Bangkok) | 15-30GB | $8-15 | Thailand only |
| Street vendor SIM | 10-20GB | $5-12 | Quality varies wildly |
| GOAN eSIM | 20GB | $29 | Works across all SEA countries |
| Carrier roaming | Pay-per-use | $10-20/day | Just don't |
In Southeast Asia, local SIMs are genuinely cheap if you're staying in one country. The moment you cross a border (Thailand to Cambodia, Bali to Singapore), you need a new SIM. With an eSIM, one plan covers everything. Check GOAN's coverage map to see exactly which countries are included.
In Europe, prices are closer. And when you factor in the time cost and the risk of getting tourist-taxed, eSIM usually comes out ahead.
The Actual Experience (Side by Side)
This is where the gap gets embarrassing for physical SIMs. Let me walk you through both experiences as they actually happen in real life.
Physical SIM: The Airport Scramble
- Land after a long flight. You're exhausted and dehydrated.
- Follow signs to the SIM card booth (if your terminal even has one)
- Wait in line behind 15 other tourists who also didn't plan ahead
- Try to explain what plan you want. Possible language barrier. Definite markup.
- Hand over your passport for registration (required in many countries)
- Find that stupid SIM tray ejector tool. Pop out your home SIM. Try not to drop either card.
- Insert the new SIM. Wait for activation. Sometimes this takes 15-30 minutes.
- Hope it works. Sometimes it doesn't.
Total time: 30-60 minutes. Stress level: medium to high. Dignity: questionable.
eSIM: The Couch Setup
- Buy a plan online the night before (2 minutes)
- Scan the QR code that arrives in your email (30 seconds)
- Land. Turn on phone. Connected.
Total time: under 3 minutes. Stress level: zero.
I set up my eSIM before every trip while watching Netflix the night before. When the plane touches down, I'm sending "landed safely" texts before the seatbelt sign turns off. GOAN has a visual setup guide that makes this dead simple even if you've never done it before.
The Multi-Country Problem
This is where physical SIMs completely fall apart.
A SIM from a French carrier works in France. Maybe it has some EU roaming included. But if you're doing a multi-stop trip through France, Switzerland (not EU), Italy, and Croatia, you might need to buy new SIMs at each border.
I once bought three physical SIMs in one week. Three shops. Three sets of paperwork. Three times explaining "no, I just want data, not a phone plan."
An eSIM plan like GOAN's covers 105+ countries on a single profile. You cross from France into Switzerland into Italy and your data just keeps going. No interruption, no new card, no settings change.
For a single-country trip where you're staying put for weeks, a local SIM might make sense. For anything involving borders, eSIM is a no-brainer.
Dual SIM: The Feature That Changes Everything
This deserves its own section because it's the thing that sold me on eSIM permanently.
When you use an eSIM for travel data, your physical SIM slot stays occupied by your home SIM. That means:
- You keep your home phone number active the whole trip
- You receive texts and calls from back home
- Two-factor authentication SMS still arrives (this one is huge)
- Your travel data runs separately on the eSIM
With a physical travel SIM, you have to remove your home SIM. That means no home number, no incoming calls, and no SMS verification codes until you swap back.
I cannot stress how annoying it is to be locked out of your bank app in a foreign country because the 2FA code went to a SIM that's sitting in a bag at your hostel. It happened to me in Hanoi. I had to video call my sister to log in on my behalf. It was deeply humbling.
With GOAN, you actually get a real phone number with your eSIM too. So you have your home number AND a travel number, both active at the same time. Useful for booking restaurants, calling Grab drivers, or giving hotels a number to reach you on.
When a Physical SIM Still Makes Sense
I'm not going to pretend eSIMs are perfect for every situation. Here's when I'd still grab a physical card:
Your phone doesn't support eSIM. If you're using an older phone (pre-2020 for most brands), eSIM isn't an option. Use the compatibility checker to find out in seconds.
You're living somewhere for 3+ months. If you're settling in one country for a long stretch, a local post-paid plan with unlimited data might be cheaper than any travel eSIM. But you'll usually need a local address and ID to set one up.
You're in a country with poor eSIM support. Some very remote destinations still have patchy eSIM coverage. Always check the coverage map before you commit.
The Verdict
For 95% of travellers doing international trips of any length, eSIM is the clear winner in 2026. The price gap has closed. The convenience gap hasn't even started to close. Physical SIMs still mean shops, queues, passport copies, and tiny plastic cards you'll probably lose in a coat pocket.
The Quick Comparison
| Factor | Physical SIM | eSIM |
|---|---|---|
| Setup time | 30-60 min | Under 60 seconds |
| Multi-country | New SIM per country | One plan, 105+ countries |
| Keep home number | No (must remove home SIM) | Yes (Dual SIM) |
| Price (Europe, 20GB) | $15-40 | $29 |
| Available before travel | No | Yes |
| Risk of losing | High (tiny card) | Zero (built into phone) |
| Real phone number | Depends on plan | Yes (with GOAN) |
Get Started
Check if your phone supports eSIM on the FAQs page, compare providers in my best eSIM for Europe guide, and set it up before your next trip.
The whole process takes less time than you spent reading this article. And you'll never have to stand in an airport SIM shop at 1am again. Trust me on this one.