What is an eSIM

eSIM FAQ

Welcome to Koala Sim's eSIM FAQ page! Whether you're a frequent traveler or just curious about how eSIM technology works, we’ve got you covered with all the information you need. Below are some common questions and answers to help you get started with eSIMs.


What is an eSIM?

An eSIM (Embedded SIM) is a digital version of the traditional SIM card that allows you to use cellular data plans from different providers without the need for a physical SIM card. It's perfect for travelers, as it enables easy switching between service providers directly from your device settings.


How does an eSIM work?

Just like a regular SIM card, an eSIM lets you activate cellular data plans. However, with an eSIM, there’s no need to physically swap out SIM cards. You can manage multiple service plans and switch between them with just a few taps in your phone’s settings. eSIMs are specifically designed to offer lower roaming charges, which makes them an ideal choice for international travel.


What are the advantages of using an eSIM over a regular SIM card?

Feature SIM eSIM
Activate cellular data plan Yes Yes
Multiple service plans No Yes
Switch service provider Physically change the card Switch in settings
Roaming charges High, doesn’t adjust to your destination Low, tailored for your destination

Short version:

  • eSIM lets you activate and manage multiple service plans on one device.
  • You can switch providers easily in your settings, without physically changing cards.
  • eSIM helps you avoid high roaming charges by offering cheaper options tailored to your destination.

How do I choose an eSIM provider?

To get started, you’ll need to choose an eSIM provider that best suits your needs. Here are some factors to consider when choosing a provider:

  • Destination coverage: Make sure the provider offers data plans for your destination country.
  • Plan flexibility: Choose a provider that offers flexible plans based on your data needs (e.g., data amount, duration).
  • Pricing: Compare prices to find the most affordable options.
  • Customer support: Look for providers with 24/7 customer support, especially if you’re a first-time eSIM user.

How do I start using an eSIM?

Follow these steps to get started with your eSIM:

  1. Check device compatibility: Ensure your phone supports eSIMs (you can check this in your phone’s settings or through this helpful page).
  2. Choose an eSIM provider: Based on the factors above, select a provider that meets your needs.
  3. Select your plan: Choose the data plan that suits your travel destination and follow the instructions to install the eSIM.
  4. Install the eSIM: After selecting your provider, install the eSIM and off you go!

Important: You’ll need an active internet connection to complete the eSIM activation process.


What are the benefits of using an eSIM?

  • No need to hunt for local SIM cards: You can easily activate your plan before you even leave home and avoid the hassle of finding a local SIM when you arrive.
  • More data whenever you need it: If you run out of data, you can order more online without searching for a store.
  • Perfect for multi-country travel: You don’t need to buy a new SIM card at each destination during your trip.
  • More secure than public Wi-Fi: Using an eSIM is safer than relying on unsecured public Wi-Fi networks, which could expose your data to hackers.

We hope this FAQ helps you better understand eSIM technology and how it can make your travels easier and more affordable. If you have any other questions or need assistance, feel free to reach out to our customer support team—we’re here to help!