eSIM Guides
eSIM compatible phones: check your iPhone or Android
Find out if your phone has eSIM: search iPhone, Galaxy, Pixel and other models, check your EID, and see which phones sold in China lack eSIM.
eSIM vs International Roaming — Which is Cheaper?
Compare travel eSIM plans against your carrier's international roaming charges. Spoiler: eSIM wins almost every time.
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 Activate Your eSIM — Step by Step
Step-by-step guide to activating your eSIM on iPhone and Android devices.
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.
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.
Managing Multiple eSIMs on Your Phone
How to manage multiple eSIM profiles: switching lines, labeling, setting defaults, and keeping your home number.
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.
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.
Regional vs Single-Country eSIM Plans — Which to Choose?
Should you buy one regional eSIM or separate country plans? Compare cost, coverage, and convenience.
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.