Glossary
Every eSIM and mobile connectivity term explained. From basics to advanced — build your knowledge.
29 articles
5G and eSIM
Unlock the power of 5G with eSIM technology. Learn how 5G and eSIM work together for seamless mobile connectivity abroad.
How to Set Up eSIM on Android
Discover a simple guide to setting up eSIM on Android phones, ideal for travelers avoiding roaming fees. Learn activation steps, compatibility with devices l...
APN Settings for eSIM
APN settings for eSIM: Understand how to configure your eSIM for international mobile connectivity, and why it's essential for travelers.
Carrier Lock & eSIM
Understand carrier locks and their impact on eSIMs for seamless travel. Learn how to avoid restrictions, choose unlocked devices, and stay connected abroad w...
Data-Only eSIM Plans
Discover data-only eSIM plans that provide internet access without calls or texts, perfect for travelers avoiding roaming fees. Learn how they work, benefits...
Data Roaming Explained
Understand data roaming and how eSIMs can help travelers avoid steep charges while staying connected abroad. Get practical tips for digital nomads on saving ...
Dual SIM (Physical + eSIM)
Discover how Dual SIM with physical and eSIM lets you manage two phone lines on one device, perfect for travelers avoiding roaming fees by using local data p...
Embedded SIM (MFF2) for IoT
Discover how Embedded SIM (MFF2) powers IoT devices with seamless global connectivity, perfect for travelers using smart gadgets abroad. Learn its role in eS...
Which Phones Support eSIM?
Discover which phones support eSIM for easy mobile data abroad, including models from Apple, Samsung, and Google. Learn how eSIM helps travelers avoid physic...
eSIM for Smartwatches
Discover how eSIM for smartwatches lets travelers like digital nomads get instant mobile data on devices such as Apple Watch or Galaxy Watch, without swappin...
eSIM for Tablets & Laptops
Discover how eSIM simplifies mobile data for tablets and laptops, perfect for travelers avoiding physical SIM swaps. Learn setup, benefits, and compatibility...
Do eSIMs Have Phone Numbers?
Learn how eSIMs work and whether they come with phone numbers. Perfect for international travelers, digital nomads, and business travelers.
eSIM-Only iPhone
Learn about eSIM-only iPhones like the iPhone 14, which ditch physical SIM cards for seamless digital plans, perfect for travelers switching data on the go. ...
eSIM Profile Management
Discover how eSIM profile management lets travelers switch carriers effortlessly for affordable data abroad. Manage multiple profiles on your phone to avoid ...
Is eSIM Secure? Security Explained
Discover if eSIM is truly secure for travelers, with simple explanations of encryption, remote provisioning, and real-world protections against threats like ...
How to Transfer eSIM to a New Phone
Learn how to transfer your eSIM to a new phone with ease, ensuring uninterrupted mobile connectivity while traveling abroad, with Fresim's expert guide and t...
eSIM Not Working? Troubleshooting Guide
Learn step-by-step fixes for eSIM issues like no service or activation failures, perfect for travelers needing reliable data abroad. Discover tips from Fresi...
eSIM vs Physical SIM Card
Compare eSIM and physical SIM cards for easier travel data plans—eSIM lets you switch networks digitally without swapping cards, ideal for travelers and crea...
eUICC Explained
Discover how eUICC powers seamless eSIM switching for global travel, enabling easy data plans without physical SIMs—perfect for digital nomads and creators. ...
Fair Usage Policy (FUP) on eSIM Plans
Understand Fair Usage Policy on eSIM plans and how it limits data speed for travelers. Learn to avoid surprises like throttling on unlimited plans, with tips...
Hotspot & Tethering with eSIM
Discover how hotspot and tethering work with eSIM to share mobile data easily for travelers. Perfect for digital nomads needing reliable WiFi abroad, with Fr...
IMEI Number & eSIM Compatibility
Learn how your device's IMEI number affects eSIM compatibility for seamless travel data. Discover easy checks and tips for international connectivity with Fr...
How to Set Up eSIM on iPhone
Learn the simple steps to set up eSIM on your iPhone for hassle-free international data, perfect for travelers avoiding roaming fees and switching plans easi...
Local vs Global eSIM Plans
Discover how local eSIM plans work for single countries and global plans cover 180+ countries via Airalo and Zendit. Perfect for travelers like digital nomad...
Multi-IMSI eSIM
Discover how Multi-IMSI eSIMs let you switch networks seamlessly for travel, saving on roaming costs with profiles from providers like Airalo. Ideal for digi...
QR Code eSIM Activation
Discover how QR code activation simplifies eSIM setup for travelers, offering quick mobile data access in over 180 countries via Fresim. Skip physical SIMs a...
Using a VPN with eSIM
Enhance your eSIM security by pairing it with a VPN for safe browsing abroad. Learn how this combo protects your data, bypasses restrictions in 180+ countrie...
What Is an eSIM?
Discover the basics of eSIM technology and how it works for international travelers, digital nomads, and business travelers.
WiFi Calling with eSIM
Discover how WiFi Calling with eSIM lets travelers make calls over WiFi without roaming fees, perfect for digital nomads. Learn setup, benefits, and real-wor...