Why eSIMs are better than regular SIM Cards!

How to buy and install eSims!

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This comprehensive eSIM guide will explain exactly what an eSIM is, why it’s a game-changer, and provide a step-by-step walkthrough on how to use one.

What Exactly is an eSIM? 

An eSIM is a digital SIM card embedded directly into your smartphone, tablet, or smartwatch. Unlike the physical, plastic SIM you’re used to, you can’t touch or remove an eSIM. Instead, you activate it by scanning a QR code.

Think of it like this: your device has a built-in, blank SIM tray. You can “fill” this tray with a cellular plan by simply downloading a profile. You can even store multiple eSIM profiles on one device and switch between them with a few taps—perfect for adding a local data plan when you land in a new country.

Why Make the Switch? The Top Benefits of Using an eSIM

  • Convenience: You can buy and install a data plan for your destination country before you even leave home. The moment you land, you’re online. No more airport kiosks or language barriers.

  • Effortless Switching: With an eSIM, switching between your primary line and a secondary travel data plan is done in your phone’s settings. It takes seconds.

  • Eco-Friendly: No more plastic SIM cards, packaging, or shipping materials. It’s a small but meaningful step towards reducing electronic waste.

Is Your Device eSIM-Compatible? A Quick Check

Before you get excited, you need to confirm your device supports eSIM. The technology is now widespread in mid-to-high-end devices released since around 2018.

  • Apple iPhone: All iPhone models from iPhone XS, XR, and newer support eSIM. Most newer iPhones can even hold multiple eSIMs and use two simultaneously (Dual SIM with eSIM).

  • Android Phones: Most flagship Google Pixel, Samsung Galaxy S and Z series, and Motorola Razr models from the last few years have eSIM. Always check your specific model’s specifications.

  • Other Devices: Many newer iPads, Samsung Galaxy Watches, and Apple Watches with cellular also support eSIM.

The easiest way to check? Go to your device’s Settings > Cellular or Mobile Network and look for an option to “Add Cellular Plan” or “Add eSIM.” If you see it, you’re good to go. Another way is to make a quick google search and look for information on your specific model online.

Your Step-by-Step eSIM Guide: How to Buy, Install, and Activate

Ready to try an eSIM? Follow this simple process.

Step 1: Purchase a Plan (Do This Before You Travel)

  1. Choose a reputable eSIM provider (like Airalo or Holafly).
  2. Download your providers App on your phone or visit your chosen providers website.
  3. Select your destination and the data package that suits your trip length and needs.
  4. Complete the purchase. You’ll instantly receive an email containing your eSIM details, most importantly—a QR Code. Save this email.

Step 2: Install the eSIM Profile on Your Phone

  1. Ensure you have a stable Wi-Fi connection. You’ll need internet to download the profile.
  2. On your iPhone, go to Settings > Cellular > Add Cellular Plan. On Android, go to Settings > Connections > SIM manager > Add eSIM.
  3. Choose “Scan QR Code” and point your camera at the QR code from your provider’s email. The profile will download.
  4. After scanning, you’ll be prompted to label the plan (e.g., “Spain Data”).

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Step 3: Configure Your eSIM Settings

  1. You will then choose your default lines for cellular data and voice. For a pure data eSIM:

    • Set your Primary line for calls and texts (so you can still receive 2FA codes on your home number).

    • Set your new eSIM as the default for Cellular Data.

  2. Toggle “Allow Cellular Data Switching” to OFF for now to avoid any surprise charges on your primary line.
  3. Follow any final provider-specific instructions, which may include installing a carrier settings profile or enabling data roaming for the eSIM.

Step 4: Activate on Arrival

  1. Once you land in your destination country, turn off flight mode on your phone.
  2. Go to Settings > Cellular and ensure your travel eSIM is turned on and selected for data.
  3. Turn ON Data Roaming for the eSIM line only. This is crucial! eSIMs for travel are designed to roam on local networks, and this will not incur charges from your home carrier.
  4. You should now see the local network name (e.g., “Telefónica ES”) and have a data connection. You’re connected! Have a nice trip!

Last Tips & Important Considerations

  • Your Main Number Stays Active: With an eSIM for data, you can still use Apps like WhatsApp and make or receive calls. Just be cautious about making traditional cellular calls, which might route through your home carrier and incur heavy roaming fees.
  • Double-Check APN Settings: Most eSIMs auto-configure, but if you get a connection without internet, you may need to manually enter the APN details provided by your eSIM seller.
  • Beware of “Network Switching”: Some countries have weaker networks. Your phone might try to switch to a “partner” network of your eSIM provider, which can be slower. Manually select the strongest local network in your cellular settings. (If you followed this guide and turned off “Cellular Data Switching” automatic network switching cannot occur.

The eSIM isn’t just a travel hack; it’s the clear future of mobile connectivity. As more devices adopt the technology and global coverage expands, the usage of eSIMs are getting more and more convenient.