Direct Answer: In destinations with very cheap local SIMs (Thailand, Mexico, India), a local prepaid SIM can be less expensive in terms of pure price. But the eSIM wins in almost everything else: no queues upon arrival, no losing your number, compatible with multiple profiles, and ready before you take off. For most travelers, the price difference does not justify the cost in time and stress.
What is a local prepaid SIM?
A local prepaid SIM is a physical card you buy directly in your destination country — at the airport, in a supermarket, at a phone store, or even at street kiosks. It works exactly like your usual SIM: you insert it into your phone, and you instantly have data, calls, and SMS on the local network.
The big historical advantage of this model is the price. Local operators compete to attract both residents and tourists, which in many countries results in incredibly cheap data plans. In Thailand, for example, it's common to find SIMs with 30 GB for less than 10 euros. In Mexico, Telcel and AT&T Mexico offer 5–10 GB plans for about 5–8 dollars.
The usual process: you land, look for a point of sale, wait (sometimes for a long time), present your passport in some countries that require it for regulation, and if the salesperson speaks English — or you speak the local language — within 15–30 minutes you have connectivity. If not, the process can become complicated.
Advantages of buying a local SIM upon arrival
The local prepaid SIM has real arguments in its favor that should be honestly acknowledged:
- Lowest price per GB in many destinations. In countries with competitive telecommunications markets and large populations, the cost per gigabyte can be 3–5 times lower than any international eSIM.
- Local coverage. You use the main local operator's network, not roaming over another network. In rural areas or areas with poor international coverage, this can make a difference.
- Local calls and SMS included. If you need to call hotels, taxis, or local businesses with a country number, the local SIM includes it by default. Data eSIMs usually don't offer this.
- No device compatibility needed. Any unlocked phone accepts a physical SIM, regardless of whether it supports eSIM or not.
- Easy to share. You can pass the SIM to another member of the group if they need connectivity and don't have an eSIM-compatible device.
Advantages of eSIM over local SIM
The eSIM has matured a lot in recent years. If you travel with a modern smartphone — practically any iPhone since the XS or any flagship Android since 2021 — you already have eSIM available. And the advantages are substantial:
- Zero queues upon arrival. You activate the eSIM before you take off, from home, on the sofa. When the plane lands and airplane mode is deactivated, you already have data. No searching for stores, no waiting, no negotiating with salespeople in another language.
- Keep your main number. Your physical SIM remains in the phone. You can receive calls and SMS on your usual number (for bank verifications, work contacts, family) while using data from the travel eSIM.
- Compatible with multiple profiles. On a multi-destination trip, you can have profiles for different countries activated or ready to activate. A Europe + Asia trip with a single management from the app.
- You don't lose the physical SIM. Extracting the SIM, storing it in a safe place, not losing it, reinserting it upon return: all that friction disappears.
- Instant 24/7 activation. You buy at 2 AM before an early morning flight. You don't depend on store hours or availability at the destination airport.
- More secure. Without a physical SIM, there is no risk of SIM swapping at the destination or having your card stolen along with your phone.
- Ideal for short stays. If you go for 3–4 days, the time you lose looking for and activating a local SIM can easily eat into the economic savings.
If you want to delve deeper into how the technology works, we recommend our guide on what an eSIM is and how it works.
Cost comparison by destination
This table reflects approximate prices as of June 2026 for 7–10 day travel data plans with 5–15 GB:
| Destination | Local SIM (approx.) | eSIM (approx.) | Difference | Verdict |
|---|---|---|---|---|
| USA | See price (T-Mobile prepaid) | See price (10 GB) | Similar | eSIM wins on convenience |
| Thailand | See price (30 GB, AIS/DTAC) | See price (10–15 GB) | Local SIM 40–60% cheaper | Local SIM wins on price |
| Europe (EU) | See price (varies by country) | See price (multi-country) | eSIM same or cheaper | eSIM wins (price + multi-country coverage) |
| Mexico | See price (5–10 GB, Telcel) | See price (5–10 GB) | Local SIM 30–50% cheaper | Local SIM wins on pure price |
Note: prices vary by provider, plan, and time of purchase. Always compare before deciding.
As you can see, the price difference is real in destinations like Thailand or Mexico. But for Europe or the USA, the eSIM competes directly on price while saving you all the friction of the process.
You might also be interested in our more detailed comparison between eSIM vs physical SIM to understand the technical differences.
When is a local SIM worth it?
Honestly, there are scenarios where the local prepaid SIM is the rational choice:
- Long stay (+15 days) in a low-cost destination. If you spend three weeks in Thailand or Indonesia, saving 10–15 euros can make sense, and you have plenty of time to manage the purchase without stress.
- You need frequent local calls. Restaurant reservations, negotiating with local suppliers, calling services. The local SIM gives you a country number included.
- Your device does not support eSIM. Older phones, some mid-range Androids, or unlocked devices from other regions may not be compatible.
- You are traveling in a group and want to share a SIM as a shared hotspot. A local SIM with unlimited data as an access point for multiple devices can be the most economical solution.
- Destination with underdeveloped eSIM. Some countries in Africa or Central Asia have limited or very expensive eSIM options compared to the local market.
However, if you travel for less than a week, visit multiple destinations, value your time, travel for business, or simply hate airport queues, the eSIM is undoubtedly the answer. Explore our catalog of international eSIMs to find the option that best suits your destination.
Conclusion
The question "eSIM vs local prepaid SIM" doesn't have a universal answer, but it does have an honest one: it depends on how much you value your time and convenience versus every euro saved.
If you travel to a destination where local SIMs are extraordinarily cheap and you have a long stay, the local SIM can win on pure price. Period. There's no point in pretending otherwise.
But for most travelers — especially frequent travelers, those taking short trips, or those traveling in Europe and the USA — the eSIM offers superior value: activate it before you leave, arrive with data, keep your number, and forget about any additional management. The price difference, when it exists, rarely exceeds 8–12 euros. Is that worth the time, stress, and logistics? For most, no.
Frequently asked questions about eSIM vs local prepaid SIM
Is eSIM always more expensive than a local SIM?
Not always. In destinations like Europe or the USA, prices are similar or the eSIM may even be cheaper if you consider that it covers multiple countries. The most notable difference exists in countries with very cheap telecommunications like Thailand, India, or Mexico, where a local SIM can cost half as much.
Can I use eSIM and physical SIM at the same time?
Yes, if your phone is Dual SIM (physical + eSIM). Most iPhones since the XS and many modern Androids allow it. You can have your usual number on the physical SIM and use data from the travel eSIM simultaneously.
Do I need to unlock my phone to use a travel eSIM?
Yes, in most cases your device must be unlocked by the carrier to use an eSIM from a different provider. If you bought the phone directly (without a carrier contract) or it has been with your carrier for more than two years, it is probably already unlocked.
Does eSIM offer the same speed as a local SIM?
It depends on the provider. The best international eSIMs use local 4G/LTE and 5G networks in roaming, which in practice offers similar speeds to a local SIM. However, in some destinations, roaming may have lower network priority during peak hours.
What happens if I lose coverage with my eSIM in a rural area?
The same thing as with any SIM: you depend on the coverage of the network you are connected to while roaming. In very rural areas, a local SIM from the dominant operator in that country may have better coverage. If you travel to remote areas, research which local operator has the best coverage there and check if your eSIM includes it.
