eSIM technology has become a permanent fixture in the lives of travelers and those who frequently change countries. While previously, communicating abroad required searching for a local SIM card, waiting in line, or paying extra for roaming charges, it’s now easier. You can activate your digital plan in just a minute—without a physical chip or visiting a mobile phone store. Platforms like RedDogFish have made the process of using eSIM as convenient, fast, and cost-effective as possible.
You’ve likely already had questions: how to use eSIM, how it differs from a regular SIM card, and is it suitable for your phone?
What is an eSIM and why is it convenient for travel?
eSIM is a module built into your smartphone that replaces a regular plastic SIM card. To activate your plan, simply download the operator profile by scanning a QR code or entering an activation code. No fiddling with the SIM tray and no risk of losing the card on the road.
The advantages of eSIM are especially noticeable when traveling:
- connection in 1–2 minutes;
- You can purchase a plan in advance and activate it upon arrival;
- No need to search for local operators;
- You can store multiple profiles simultaneously;
- No roaming charges – you only pay for the selected data package.
How to use eSIM: a step-by-step guide
To activate an eSIM, simply select a suitable provider, such as RedDogFish, which offers a variety of plans for individual countries and international travel. Then, purchase the desired data package – daily, weekly, or monthly – and instantly receive a QR code. Scan this code in your smartphone settings, and upon arrival in the new country, simply activate the profile, after which the internet starts working automatically. The process is so convenient and quick that many travelers activate their eSIM at the airport, while they’re heading to passport control.
Using an eSIM on an iPhone in 2025 has become even easier thanks to the full integration of digital SIM cards into the system. To add a new eSIM, simply open your device’s settings, go to the “Cellular” section, and select “Add a new profile.” Scan the QR code and follow the instructions until the installation is complete. Once activated, the user can configure the eSIM as the primary mobile data source, use the physical SIM for calls, or easily switch between profiles, choosing the most convenient option for a given situation.
In 2025, an eSIM is not just a convenient alternative to physical SIM cards, but a complete solution for comfortable travel. It saves money, time, and hassle. And with services like RedDogFish, connecting to international data takes less than a minute and works seamlessly.
