// guides & insights

Articles & Guides

Guides on IoT, M2M, mobile data, the eSIM revolution and selling connectivity

Practical, plain-English guides from the Extrafon team — on connectivity, eSIM and building connectivity businesses on tier-1 networks.

IoT & M2M

• What Is IoT Connectivity? A Plain-English Guide for 2026
• M2M vs IoT: What’s the Difference and Why It Matters
• Multi-Network IoT SIMs: How One SIM Roams Across 600+ Networks
• Permanent Roaming Explained: The Hidden Risk in Global IoT
• IoT SIM Security: Locking Down SIMs, Devices and Data
• Choosing an IoT Connectivity Provider: 10 Questions to Ask

Mobile data SIMs

• Mobile Data SIMs for Business: Prepaid vs Postpaid
• How Tier-1 Network Access Cuts Your Data Roaming Costs

The eSIM revolution

• The eSIM Revolution: How eUICC Is Reshaping Connectivity
• eSIM vs Physical SIM: Pros, Cons and When to Switch
• What Is eUICC and Remote SIM Provisioning?
• The Future of eSIM: From Smartphones to a Billion IoT Devices

Travel eSIM

• Travel eSIMs Explained: Stay Connected Abroad Without Bill Shock
• How to Install a Travel eSIM in Minutes (Step-by-Step)
• The Best Way to Get Data Abroad in 2026: Travel eSIM vs Roaming vs Local SIM
• Travel eSIM Coverage: 180+ Countries on One Profile

Selling eSIMs & technology

• How to Start Selling eSIMs: A Reseller’s Playbook
• The Technology Behind an eSIM Store: Platform, APIs and eCommerce
• White-Label eSIM: Launch Your Own Branded Travel-eSIM Brand
• From Local MNO to Global Service Provider: Reaching Travellers with eSIM