eSIM vs traditional SIM: is it worth migrating in 2026?

The eSIM technology has arrived to change the way we use mobile internet, especially while traveling. But is it worth migrating from the traditional physical SIM card? In this article, we compare the two technologies in depth.

What is the difference between eSIM and physical SIM?

Physical SIM card: the small plastic card that you insert into your phone's tray. It has been around for over 30 years.

eSIM (embedded SIM): a virtual chip integrated into the phone at the factory, programmed via QR code or digital code.

Functionally, both do the same thing: they connect your phone to a carrier. The difference lies in how the carrier profile is installed and activated.

Advantages of eSIM

• Instant: you buy online, receive a QR code by email, and install it in minutes. No need to go to a store.
• Dual SIM without losing a slot: you can have 2 or more active profiles simultaneously (Brazilian SIM + international eSIM, for example).
• No physical loss: there’s no chip to drop on the floor, lose in your wallet, or damage.
• Ideal for travel: switch plans in seconds without changing the SIM card.
• Safer against cloning: there’s no physical chip that can be removed by criminals.
• Design: phones can be thinner and waterproof without the SIM tray.

Disadvantages of eSIM

• Limited compatibility: not all phones accept it. Older models (pre-2018) do not have support.
• Transfer between phones: unlike the physical SIM, you cannot simply take it out and put it in another device. You need to request a new QR code or transfer it via the carrier.
• Configuration dependency: if you lose the QR code and do not have access to your account, it can be complicated to recover.
• Carrier lock: some iPhones purchased with American carriers may have the eSIM locked.

Advantages of physical SIM

• Works on any phone: nearly 100% compatibility.
• Easy to transfer: take it out of one phone and put it in another in seconds.
• Cheaper in some countries: prepaid plans with immediate activation in-store often have local offers.

Disadvantages of physical SIM

• In-person purchase: you need to go to a store, show ID, and wait in line.
• Manual swapping: you need to take out the Brazilian SIM, store it, insert the new one, and be careful not to lose it.
• Can get damaged: contact with water or dirt can render it useless.
• Risk of fraud: SIM cloning is common in Brazil.

Scenarios: which to choose?

Short trip to 1 country (1-14 days)

Winner: eSIM. You buy in minutes, install before traveling, and don’t need to look for a store at your destination. Saves time and money.

Eurotrip with multiple countries (10-30 days)

Winner: regional eSIM. A single chip covering 39 countries. Unthinkable to do this with a physical SIM — it would require 4-5 separate purchases.

Expat / living for 6+ months

It depends. For long-term living, it’s worth getting a local monthly plan, which can be either eSIM or physical SIM. Generally, the eSIM pays for itself through convenience.

Old phone (pre-2018)

Physical SIM. There’s no way around it — your phone does not support eSIM.

Permanent Dual SIM (Brazil + work)

SIM + eSIM. The combination is perfect: Brazilian SIM for personal use, eSIM for work. You don’t lose any SIM and have two active numbers.

The future is eSIM

In 2022, Apple launched the iPhone 14 exclusively with eSIM in the USA — without a SIM tray. Starting in 2024, Samsung and Google also began moving premium models to eSIM only. The trend is clear: in 5-10 years, physical SIM will be an exception.

Ready to try?

If you have a trip planned, now is the perfect time to experiment. Choose your destination and buy your eSIM in minutes.