Guides
Browse all CAYLET eSIM articles in the Guides category.
Can a Travel eSIM Use Hotspot, Calls, and SMS? Complete Feature Guide
Can a travel eSIM use Personal Hotspot, make phone calls, or receive SMS? Learn the difference between mobile data, tethering, internet calls, cellular voice, SMS, phone numbers, and Dual SIM.
How to Check If Your Phone Supports eSIM
Learn how to check eSIM compatibility on iPhone, Samsung Galaxy, Google Pixel, and other Android phones, including regional models and carrier locks.
How to Install an eSIM on Samsung Galaxy and Google Pixel: Android Setup Guide
Follow complete steps to scan a QR code and manually install a travel eSIM on Samsung Galaxy and Google Pixel. Learn to configure data roaming, dual SIM, and APN.
How to Install and Activate an eSIM on iPhone: Complete Setup Guide
Follow complete steps to scan a QR code or manually install a travel eSIM on your iPhone. Learn how to configure mobile data, data roaming, and APN settings.
What Is an eSIM? A Complete Guide to Travel eSIMs
Learn what an eSIM is, how travel eSIMs work, how they compare with physical SIM cards and international roaming, and what to check before buying one.
When to Install and Activate a Travel eSIM: Before or After Arrival?
Understand the differences between buying, installing, activating, and starting the timer for a travel eSIM. Learn when it is safest to install to avoid early data usage.