How does an eSIM work?
An eSIM is a digital SIM card built into your phone. Activate by scanning a QR — no physical cards, no changing your home plan, no airport queues. Here's the full picture from start to finish.
What exactly is an eSIM?
An eSIM (Embedded SIM) is a small chip inside your phone that does the same job as the traditional SIM card — without the physical part. Instead of slotting a plastic card, you download a profile via QR code.
Your phone keeps the home SIM active at the same time (dual SIM), so you still receive bank SMS, family calls, and verification codes — only mobile data routes through the new eSIM.
That means: no airport kiosk queues, no lost-tiny-SIMs in hotel nightstands, no changing your number every trip.
How to activate your eSIM in 5 steps
- 01Buy your eSIM before leavingPick the country at eSIM Ahora, pay by card or crypto. Receive the QR by email or directly on screen.
- 02Wait until you land (important)Don't activate at home. Validity counts from first connection, not from purchase. Activating later maximizes useful days.
- 03Connect to airport WiFiYou need Internet to download the carrier profile. Any WiFi works — airport, hotel, café.
- 04Scan the QR from SettingsiPhone: Settings → Cellular → Add eSIM → Use QR. Android: similar, varies by manufacturer.
- 05Enable "Data Roaming" on the new eSIMThe step 90% of users forget. Without this there's no Internet. Even though the eSIM is local, iOS and Android treat it as "roaming".
Does my phone support eSIM?
Most common compatible models (incomplete list — full details in each blog post):
If your phone is from before 2019-2020, it probably only supports physical SIM. Confirm by searching "[model] eSIM support" or at Settings → About phone → look for "EID".
Why eSIM Ahora?
Frequently asked questions
Do I lose my home number using eSIM?
Is Internet quality the same as a local SIM?
How does this compare to my carrier's roaming?
Do I need to unlock my phone?
Does it work without Telegram?
Can I cancel and get my money back?
Heading to World Cup 2026?
eSIM ready before you leave, no airport queues, no roaming gouging. 5G coverage across all 16 stadiums and host cities.
See World Cup 2026 guide →Ready to start?
Pick your country, get the QR in 30 seconds. If it doesn't work, you get your money back.
See country catalog →