Best eSIM for the United States in 2026: prices compared
A 5 GB, 30-day United States eSIM from eSIMology costs £8.99 on AT&T and Verizon with 5G. The same 5 GB for 30 days costs £10.50 at Airalo and £10.99 at Saily; Holafly sells unlimited plans only, from £10.00 for 3 days. Prices checked 7 November 2026.
Three things decide the right United States eSIM for your trip: the networks it runs on, how much data you need, and how fast it goes once a daily allowance is used up. eSIMology's plans for the United States run on AT&T and Verizon, with 5G where the network offers it.
United States eSIM prices compared
| Trip | eSIMology | Airalo | Holafly | Saily | Buy |
|---|---|---|---|---|---|
| 3 GB · 30 days | £5.99 | – | Unlimited only | £6.99 | Buy |
| 5 GB · 30 days | £8.99 | £10.50 | Unlimited only | £10.99 | Buy |
| 10 GB · 30 days | £13.99 | £17.50 | Unlimited only | £17.49 | Buy |
| 20 GB · 30 days | £26.99 | £28.50 | Unlimited only | £28.49 | Buy |
Rival prices from each provider's own United States page, as shown to a UK visitor (GBP, VAT included), read 7 November 2026. Our prices are live; pay in pounds, euros or dollars.
What you get from each
| What you get | eSIMology | Airalo | Holafly | Saily |
|---|---|---|---|---|
| Buy without an account | Yes: guest checkout, no app | Account needed before checkout | Yes: guest checkout | App sign-in needed to install |
| Refunds on unused eSIMs | Full refund to your card within 30 days | In the app as Airmoney credit; card refunds by request | Full if not activated, within 6 months; $3.50 fee on partial refunds | Full within 30 days if not installed |
| Speed after a daily cap | Printed on every plan | “Slows”, no speed given | No speed given | 1 Mbps, in its terms |
| Fixed-GB data plans | Yes, with the price per GB | Yes | No: unlimited by the day only | Yes |
| Data left and top-up | On a web page, no app | In the app | In the app | In the app |
| Phone check before paying | Checks the phone you're on at checkout | A list of phones | *#06# test and a list | A list by brand |
| Install | One tap on iPhone, QR code or codes, by email | In the app, QR code or codes | One tap in the app, QR code or codes | App-guided |
| Currencies | GBP, EUR, USD | 16 currencies, often charged in USD | USD and EUR in the app | GBP, USD, EUR, CHF |
From each provider's own public pages. Full comparison
What should you check in a United States eSIM?
- Networks and 5G: eSIMology's plans run on AT&T and Verizon, with 5G where the network offers it.
- Plan size for your trip: On a 7-day trip, standard use (about 4.9 GB in all) suits 5 GB for 30 days, and heavy use (about 12.6 GB in all) suits 15 GB for 30 days. For heavier days, eSIMology's daily allowances go up to 10 GB a day. Not sure how much you'll use?
- Speed after a daily allowance: Once a daily allowance is used up, speed drops to 512 Kbps. eSIMology prints this on every plan. Some companies don't state a speed, and Saily states 1 Mbps in its terms.
- Top-ups and data left: Most plans can be topped up. You check data left and top up on a web page, with no app.
Which United States eSIM plan fits your trip: fixed GB or a daily allowance?
- A two-week trip through New York City and Las Vegas: Light use suits 5 GB for 30 days, and standard use suits 10 GB for 30 days. Most plans can be topped up if you run short. Not sure which level you are? Check how much data you need.
- A three-day Miami stay with heavy use: Pick 2 GB a day for 3 days. Each day gets its own allowance, and after it, speed drops to 512 Kbps.
- A week in Los Angeles and San Francisco with heavy Uber and Lyft use: Pick 15 GB for 30 days. For a longer stay of heavy use, 2 GB a day for 30 days or 50 GB for 180 days fits.
- Rival plans: Airalo and Saily sell fixed-GB plans and unlimited plans by the day. Holafly sells unlimited plans by the day only. Saily's unlimited options run from 1 to 30 days, plus 90 and 365, while Airalo's run for 3, 5, 7, 10, 15 and 30 days.
United States eSIM prices: questions
Which is cheaper for 5 GB over 30 days in the United States?
For 5 GB over 30 days in the United States: eSIMology £8.99, Airalo £10.50, Saily £10.99. Holafly sells unlimited plans only. Rival prices from their own United States pages, read 7 November 2026; ours are live.
Can I get a refund on an unused United States eSIM?
eSIMology: Full refund to your card within 30 days. Airalo: In the app as Airmoney credit; card refunds by request. Holafly: Full if not activated, within 6 months; $3.50 fee on partial refunds. Saily: Full within 30 days if not installed.
Do I need an app to check my data in the United States?
eSIMology: On a web page, no app. Airalo: In the app. Holafly: In the app. Saily: In the app.
Which networks does a United States eSIM from eSIMology use?
It connects to AT&T and Verizon in the United States, with 5G where the network has it. Your phone picks the strongest signal by itself.
Is an unlimited or a fixed-GB eSIM better for the United States?
It depends how much data you'll use, so match the plan to your trip. eSIMology sells fixed-GB plans, with the price per GB shown, and daily allowances. Heavy users should look at our daily allowances, up to 10 GB a day, or a bigger fixed plan. Holafly sells unlimited plans by the day only.
How fast is my data after the daily allowance runs out?
After your daily allowance, a eSIMology United States eSIM drops to 512 Kbps, and that speed is printed on every plan. Airalo says data “slows” without giving a speed. Holafly gives no speed. Saily gives 1 Mbps in its terms.
Can I check my phone before I pay?
Yes, eSIMology checks the phone you're on at checkout, before you pay. Airalo shows a list of phones. Holafly offers a *#06# test and a list. Saily shows a list by brand.
Get your United States eSIM
From £3.99 / €3.99 / $4.99. Delivered by email in seconds, installed in two minutes, and refunded in full if you never install it.