
Does a travel eSIM stop Cellular at Sea or Telenor Maritime?
A travel eSIM does not block your home SIM from maritime roaming. Check line settings and onboard service separately from port-country coverage.
Read articleExpert travel guides, device tutorials, and connectivity strategies from the Graba SIM team

A travel eSIM does not block your home SIM from maritime roaming. Check line settings and onboard service separately from port-country coverage.
Read article
Each phone needs its own eSIM. Check every phone first by dialling *#06# and looking for an EID. Buy them together so one person gets every QR code, labelled
Read article
RCS can use Wi-Fi or mobile data, including a travel connection. Check carrier support, number registration and SMS fallback before you travel.
Read article
A green iPhone bubble can be RCS, SMS or MMS. Check the message type and sending line before assuming how a message is charged abroad.
Read article
Set up an iPhone Duo travel eSIM, keep your normal number and check the data-line settings that help avoid unwanted home-network roaming.
Read article
Compare iPhone Duo and Galaxy Z Fold8 SIM arrangements, regional model checks and practical travel workflows before choosing a phone or data plan.
Read article
Review iOS 27 travel settings before departure, after landing and back home. Choose the right data line and avoid accidental home-network fallback.
Read article
Ask your carrier what an international-roaming bar blocks, including calls and incoming texts, before relying on it alongside a travel eSIM.
Read article
Set up a Galaxy Z Flip8 travel eSIM, review photo uploads and test the right data line before leaving airport Wi-Fi.
Read article
Review One NZ and 2degrees roaming prices checked in October 2026, with worked trip totals and conditions to confirm before departure.
Read article
Compare Singtel and M1 roaming bundles using dated prices, validity and destinations, then check a suitable travel eSIM for the same trip.
Read article
Review Telstra International Day Pass zones and dated trip-cost examples, then compare them with a travel eSIM for your destination.
Read articleGRABA PERKS · TRAVEL PARTNERS
Experiences, airport transfers and useful extras to go with your Graba SIM connection. Compare flights →
Discover museums, attractions and sightseeing tickets, with city-specific collections to help plan your day.
Explore Tiqets ↗Plan a pre-booked pickup and check meeting instructions before you arrive.
Explore Welcome Pickups ↗Explore flight routes and fares. Check baggage, connection protection and change conditions before booking.
Country to country flights ↗Explore rental vehicles and compare pickup arrangements, deposits and included mileage.
Explore GetRentacar.com ↗Affiliate links: Graba SIM may earn a commission when you book through these links, at no extra cost to you. Bookings are with the partner. Availability, eligibility, prices and terms can change; check the final details before paying.