eSIM Guides
eSIM Compatible Phones — Full Device List
Check if your iPhone or Android phone supports eSIM. Full compatibility list, regional exceptions, and instant EID checker.
How eSIM Works — Complete Guide
Everything you need to know about eSIM technology, how it works, and why it's better than a physical SIM for travel.
How to Activate Your eSIM — Step by Step
Step-by-step guide to activating your eSIM on iPhone and Android devices.
eSIM vs International Roaming — Which is Cheaper?
Compare travel eSIM plans against your carrier's international roaming charges. Spoiler: eSIM wins almost every time.
How to Choose the Right eSIM Plan
Not sure which eSIM plan to buy? Learn how to pick the right data size, validity, and price for your trip.
eSIM Troubleshooting — Fix Common Problems
Step-by-step fixes for the 10 most common eSIM issues on iPhone and Android, from installation errors to data problems.
How to Top Up Your eSIM — Add More Data
Running low on data? Learn how to top up your eSIM with more data without buying a new plan.
Managing Multiple eSIMs on Your Phone
How to manage multiple eSIM profiles: switching lines, labeling, setting defaults, and keeping your home number.
Regional vs Single-Country eSIM Plans — Which to Choose?
Should you buy one regional eSIM or separate country plans? Compare cost, coverage, and convenience.
Understanding Your Dashboard — Orders, Usage & Settings
Learn how to read your e-sim.onl dashboard: order statuses, eSIM states, data usage tracking, and QR codes.
What Happens After You Buy an eSIM
The complete step-by-step flow from payment to expiry: QR code delivery, installation, activation, usage tracking, and top-ups.