Travel guide · 5 min read · July 12, 2026
eSIM vs roaming: what a 10-day US trip actually costs
A 10-day US trip on carrier roaming often costs $60 to $100, while a travel eSIM with 5GB to 10GB runs $12 to $25. Roaming bills by the day or by the megabyte; eSIM data bills once, upfront. dizomo US plans start below a dollar, so the savings are easy to see before you pay.
Carrier roaming for 10 days in the US typically costs more than a travel eSIM with the same data. The gap is usually 3x to 5x, and the eSIM installs before you fly.
What roaming actually costs
International roaming packages from US and EU carriers run roughly $10 to $12 per day for a data pass, or around $60 to $100 for ten days depending on your carrier and plan.
Pay-per-use roaming is worse: many carriers charge per megabyte outside your home region, and a week of maps and messaging can quietly exceed the daily-pass price.
What the same data costs on an eSIM
A 5GB US eSIM is often around $12 to $15, and 10GB around $20 to $25 from budget providers. dizomo US plans start under a dollar for light users, with the full catalog visible per destination.
The comparison is not close: the same trip that costs $60 to $100 on roaming usually costs $12 to $25 on an eSIM, before any Wi-Fi trickery.
The hidden costs of roaming passes
Daily passes reset at midnight in the destination timezone, so a flight landing at 11pm can eat a full day's pass for an hour of use. eSIM data has no such clock; validity starts on first connection.
Roaming passes often throttle video or require you to remember to buy before departure. An eSIM is a one-time install you can do at home over Wi-Fi, with nothing to toggle mid-trip.
Keeping your number while you roam
With an eSIM you keep your home SIM active for calls and texts, and set the travel eSIM as the data line. WhatsApp and iMessage keep working through the travel data.
Turn off data roaming on the home SIM so it cannot bill you, and set the eSIM as default for cellular data. dizomo's dashboard shows the steps when you install.
Frequently asked questions
Is it cheaper to use roaming or an eSIM for a 10-day US trip?
An eSIM, usually by 3x to 5x. A 5GB US eSIM runs around $12 to $15, while ten days of carrier roaming often costs $60 to $100.
Will my WhatsApp number work with an eSIM?
Yes. Keep your home SIM active for calls and SMS, and use the eSIM for data. WhatsApp and iMessage ride on the data connection.
Does dizomo have cheap US plans?
Yes. US plans start below a dollar, and the country page lists every available plan with price, data, and validity filters.
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