How to use eSIM on Iphone and android?

Using an eSIM (embedded SIM) lets you activate a mobile plan digitally—no physical SIM card needed. Here’s a simple step-by-step guide.


📱 What You Need First

  • A phone that supports eSIM (e.g., newer iPhones, Google Pixel, Samsung Galaxy models)
  • A carrier that offers eSIM service
  • Wi-Fi connection (recommended for setup)
  • A QR code or activation details from your carrier

🍎 On iPhone (iOS)

https://cdsassets.apple.com/live/7WUAS350/images/ios/ios-26-iphone-16-pro-settings-cellular-setup.png
https://cdsassets.apple.com/live/7WUAS350/images/ios/ios-26-iphone-16-pro-sim-settings-cellular-cellular-data.png

4

  1. Go to Settings
  2. Tap Cellular (or Mobile Data)
  3. Tap Add eSIM or Add Cellular Plan
  4. Choose:
    • Use QR Code (scan from your carrier), or
    • Enter Details Manually
  5. Follow on-screen steps to activate.

👉 After activation, you can:

  • Label plans (e.g., “Work,” “Travel”)
  • Choose default line for calls, SMS, and data
  • Enable dual SIM if using physical SIM + eSIM

🤖 On Android (Google Pixel / Samsung)

https://esimdb.com/blog/content/images/2022/10/Android_Settings_Network_Internet_SIMs.jpg
https://support.alosim.com/hc/article_attachments/26581722731661
https://eu.community.samsung.com/t5/image/serverpage/image-id/1251166i0E18FF4A4F9E1992?v=v2

4

  1. Open Settings
  2. Tap Network & Internet (or Connections)
  3. Select SIMs or Mobile Network
  4. Tap Add eSIM or Download a SIM
  5. Scan QR code or enter activation code
  6. Confirm and restart if prompted

🔄 Switching Between SIMs

If you have dual SIM (physical + eSIM or two eSIMs):

  • Choose which line handles data
  • Choose which line handles calls/texts
  • Turn a line on/off anytime in Settings

9 Articles

Dear viewers, our blog dedicated to deep dives into software engineering, system design, cloud architecture, and emerging technologies. This blog explores practical solutions, andorid solutions, real-world case studies, performance optimization strategies, and best practices to help developers and tech leaders build scalable, efficient, and resilient systems.