eSIM vs Roaming: The Real Cost Comparison (2026)

Carrier roaming is one of the last great travel rip-offs. Despite eSIMs being widely available for years, millions of travelers still pay $10–15 per day for the same data they could get for a few dollars on a travel eSIM.

Here's a real cost comparison for a **7-day trip** across popular destinations:

DestinationCarrier RoamingBest eSIMYou SaveFrance$70–105$10–15~85%Japan$70–105$9–20~80%USA (for visitors)$70–105$13–20~80%Australia$70–105$12–18~82%UK$70–105$10–15~85%

Why is roaming so expensive?

Carriers charge roaming fees based on wholesale inter-carrier agreements — rates that haven't meaningfully dropped in years despite data costs falling dramatically. They have little incentive to cut prices for a service most customers only use occasionally.

What are you actually getting with an eSIM?

A travel eSIM connects you to the same local networks as roaming — often AT&T, T-Mobile, Vodafone, or whichever carrier has the best coverage in your destination. The difference is pricing: eSIM providers buy data in bulk and pass the savings on.

The one catch

Not all eSIMs are equal. Watch out for:

**No hotspot** — some unlimited plans (notably Holafly) don't allow tethering

**Throttling** — unlimited plans slow down after a daily threshold

**Short validity** — a 7-day plan that activates immediately isn't ideal if you're buying a week before travel

Bottom line

For any trip longer than 2 days, a travel eSIM will save you money. Use our [eSIM Finder](/en/find) to see the best-value plan for your specific destination and trip length.