The Simju blog
Guides and data tips from travelers and our support team — everything you need to land connected.
Do eSIMs Work on Cruises and Across Multiple Countries?
An eSIM for cruise travel keeps you connected at ports across many countries, but not on open sea. Here is how it works and which plan to pick.
Read the guide →Thailand eSIM guide: staying connected in Bangkok and island-hopping
How much data you need for Bangkok and the islands, plus tips for staying online on ferries, remote beaches and trave...
Jul 9, 2026
USA eSIM Guide: Staying Connected Across the States
How a USA eSIM keeps you online across cities and road trips, with hotspot tips for your laptop and honest notes on A...
Jul 9, 2026
Japan eSIM 2026: Your Travel Data Guide for Cities, Rail and the Countryside
How much data you need for a 1-2 week Japan trip, plus coverage from Tokyo to the countryside and rail lines, and why...
Jul 9, 2026
eSIM Not Working? A Traveller's Troubleshooting Guide
eSIM not working at your destination? Work through QR delivery, data roaming, line selection and signal fixes step by...
Jul 9, 2026
How Much Mobile Data Do You Really Need for a Trip?
Practical daily data estimates for light, typical and heavy travel use, plus a simple days x GB formula and how Wi-Fi...
Jul 9, 2026
Multi-Country eSIM Explained: One Plan for a Whole Region
A multi-country eSIM covers a whole region on one plan. Here is when a regional eSIM beats several single-country pla...
Jul 9, 2026
How to Avoid Roaming Charges Abroad and Keep Your Number
A clear, practical guide to avoiding expensive roaming charges abroad while keeping your usual number live for calls ...
Jul 9, 2026
Is My Phone eSIM Compatible? How to Check on iPhone and Android
A quick, practical guide to checking whether your iPhone or Android supports eSIM, plus a device checklist and what c...
Jul 9, 2026
The Best eSIM for Europe in 2026: Regional Plans, Data Sizing and Trip Tips
How regional Europe eSIM plans work across borders, how much data to pick for a 1 to 2 week trip, and practical tips ...
Jul 9, 2026
eSIM vs SIM: Travel Roaming, Local SIMs and eSIMs Compared
A practical breakdown of eSIM vs international roaming vs buying a local SIM abroad: how each works, what it costs, a...
Jul 9, 2026
How to Set Up an eSIM: iPhone and Android Step by Step
A clear, step-by-step guide to setting up a travel eSIM on iPhone and Android, from scanning the QR code to switching...
Jul 9, 2026