About eSIM vs Roaming

Our mission

eSIM vs Roaming exists to expose the true cost of carrier roaming and show travellers the eSIM alternative. Carriers price roaming for people who don't shop around — a flat $10/day here, a throttled “free” allowance there, a $200 pay-per-use bill for those who forget a pass. We translate that opacity into plain numbers: what your carrier charges, what an eSIM costs, and the exact dollar gap between them.

When we launched

eSIM vs Roaming launched in June 2026 with a single goal: show travelers the exact dollar difference between carrier roaming and travel eSIMs. We started because carrier pricing pages bury the real cost behind plan names and daily-pass marketing. A traveler who reads “International Day Pass — $10/day” does not know that a 7-day trip means $70, or that a comparable eSIM for the same week costs $4.50. We built this site to make that math visible.

Our research process

Carrier rate tables are checked monthly against the published pricing pages of AT&T, Verizon, T-Mobile, Xfinity, Vodafone, and EE. eSIM prices from Airalo, Holafly, Saily, and Nomad are checked weekly — plan by plan, country by country — because providers reprice frequently and a stale number misleads. Our country enrichment database covers 213 destinations, cross-referenced against public telecommunications and tourism sources to confirm network availability and local pricing context. Every comparison page is date-stamped with the last verification date so you know exactly how current the data is. For the full methodology, see how we calculate and our editorial policy.

How we source carrier rates

Every carrier figure on this site is taken directly from the carrier's own website — T-Mobile.com, Verizon.com, ATT.com, Vodafone.co.uk, EE.co.uk and Xfinity.com — and re-checked monthly. When a carrier changes a rate, we update the affected pages and note the change date. We archive screenshots of published prices so our claims can be independently verified.

How we price eSIMs

We check eSIM prices weekly against all four providers we cover — Airalo, Holafly, Saily and Nomad — using their public plan pages for each country and region. Where prices vary by plan size, we quote the cheapest plan that covers a typical week of use, and show larger bundles where they're better value.

Rate verification process

Prices are verified monthly for carriers and weekly for eSIM providers. We monitor for mid-cycle changes, archive source pages, and date-stamp every comparison page with “Prices verified June 2026.” If you spot a rate that's out of date, our contact page has a 24-hour rate-correction line.

Editorial independence

We earn affiliate commissions when readers buy an eSIM through our links. That funds the research — but it does not shape the rankings. Every savings figure uses real carrier rates and real eSIM prices, and a provider cannot pay to be ranked higher. When two options are close, we say so.

Update schedule

Carrier rates: verified monthly. eSIM prices: verified weekly. Editorial content: reviewed quarterly. Major carrier or regulatory changes (like a new roaming fee) trigger an immediate update to the affected pages.

Read more

• How we calculate savings — the full methodology behind every dollar figure on this site
• Carrier rate cards — AT&T, Verizon, T-Mobile, Xfinity, Vodafone, and EE rates in one place
• Destinations — carrier vs eSIM prices for 213 countries
• Editorial policy — our standards for sourcing, verification, and affiliate disclosure
• Corrections log — every update to published data, dated and described