BreezeSim on a cruise — the honest answer
Bought by plenty of cruise passengers, and right for only some of them. This review sets out where BreezeSim genuinely helps and where it leaves you looking at an SOS icon.
Does BreezeSim work at sea?
BreezeSim sells data-only travel eSIMs for more than 190 countries, and quietly runs the eSIM shops behind several big brands including SWISS, Wizz Air and du. Install by QR code, and the clock only starts on first use. Tethering is free on every plan. It runs on land networks, so it covers port days and nothing in between.
Prices last confirmed
Who BreezeSim is for
BreezeSim sells prepaid data on breezesim.com, and licences the same system to other companies. That is why searching for the SWISS eSIM, the Wizz Air eSIM or the du eSIM leads back to a Breeze-run shop. Coverage reaches more than 190 countries across North America, Europe, Asia, the Middle East, Africa and the Caribbean, as single-country, regional or global plans.
Plans come in three shapes. Fixed bundles with set data and set days. Day plans giving 1GB every 24 hours. And Premium Unlimited tiers pairing unlimited data with a high-speed cap. The days only count from first use, so a plan can be bought and installed well ahead without wasting one.
What happens when the ship leaves port
BreezeSim uses local carriers in each country — in the US that means Verizon Wireless and AT&T Mobility — on 4G LTE, or 5G where it exists. It is the same coverage a normal roaming SIM gets. On a cruise it wakes coming into port and goes quiet heading back out. Land masts reach about 12 nautical miles and no further. There is no maritime layer in any plan, so a full day at sea sits outside everything it sells.
What BreezeSim costs, and what that buys
Plans start at $3.99. The US page lists 10GB over 30 days for $13.99, down from $19.00. Canada is $14.99 for the same, and Europe Lite $12.99, checked in September 2026. Global plans open at $10.99. Premium Unlimited runs from 30GB of high-speed data over 5 days up to 90GB over 15, and data keeps flowing more slowly past the cap rather than stopping.
Validity starts on first use rather than at checkout, so a plan bought weeks before a cruise does not tick down until the phone connects. More data mid-trip is added in the Breeze dashboard rather than by buying a second eSIM. And a plan never touched at all is refunded in full, back to the original card within three working days.
The details that matter on a ship
| Coverage | 190+ countries across North America, Europe, Asia, the Middle East, Africa and the Caribbean |
|---|---|
| Hotspot / tethering | Free on every plan |
| 5G | Where the local network supports it; varies by country |
| Data / calls / SMS | Data only; keep your normal SIM on for calls and texts |
| Validity | Starts on first use, not at checkout; day, fixed and unlimited tiers |
| Activation | Scan a QR code; live in under 60 seconds |
| App | None; you manage it through a web login |
| Top-ups | Added in seconds in the Breeze dashboard |
| Refunds | Full refund if no data used, within 3 working days |
| Support | Help centre at help.breezesim.com, plus social channels |
| Device compatibility | Any eSIM-capable phone |
Getting it working before you sail
Buy on the website and install by scanning a QR code. BreezeSim puts it live in under 60 seconds once it finds a covered network. Set it up at home rather than on arrival. Because the clock does not start until first use, installing early costs nothing at all.
On a cruise that timing works in your favour. Install before boarding and leave the profile sitting quietly. The 30 days then begin at the first port rather than on the day you paid.
Where BreezeSim shines, and where it does not
- Your days start on first use, so early setup costs nothing.
- Tethering is free on every plan.
- Full refund if you have not used any data.
- Runs the eSIM shops for airlines like SWISS and Wizz Air.
- There is no app, so everything happens in a browser.
- No calls or texts, so keep your normal SIM switched on.
- No BreezeSim plan covers a full day at sea.
- 5G depends on the local network, so it varies by country.
Cruise and ferry plans
The plans database on this site holds cruise, ferry and maritime products only. BreezeSim publishes none, so there is no plan table on this page. Its regional data plans remain the relevant purchase for port days.
The verdict for cruise passengers
This suits a passenger who likes things sorted early. It can be installed weeks ahead without losing days, tethering is free, and the no-data-used refund is written down rather than implied. The gaps are plain enough. No app, and no calls or texts. It also goes quiet the moment the coast is behind you, so sea days still want a maritime eSIM or the ship’s wi-fi.
What to pair this with for sea days
For the hours between ports you need one of the three maritime providers:
Frequently asked questions
01Does BreezeSim work on a cruise ship?+
Partly. It handles the half of a cruise that happens on land, which on a port-heavy itinerary is most of the waking hours — but the sea days need a plan BreezeSim does not sell.
02When does the BreezeSim clock actually start?+
It starts the first time your eSIM connects to a network in the country you are visiting, not when you pay. So you can buy and install weeks before a cruise. Your days only begin once you reach a covered port.
03Can I get a refund on a plan I never used?+
Yes. If you have used no data at all, BreezeSim refunds the full amount to your original card within three working days. That is a clearer promise, in writing, than most eSIM shops offer.
04Are BreezeSim eSIMs sold under other names?+
Yes. Breeze runs white-label shops for airline and telecom partners. The SWISS eSIM, the Wizz Air eSIM and the du eSIM all sit on the same platform underneath.
05Do I have to buy a new plan to top up?+
No. You add more data to a live plan in the Breeze dashboard, and it takes seconds. There is no need to buy and install a second eSIM in the middle of a trip.
Compare BreezeSim with
- Amigo eSIM — A broad-catalog eSIM retailer covering single countries and regions worldwide, with an affiliate API we ingest. Useful for port days; its catalog contains no cruise or maritime SKUs.
- Billion Connect — An Asia-Pacific-strong eSIM provider with competitive Japan, Korea and South-East Asia packs. Relevant to Asian cruise itineraries on port days only.
- Bloomy eSIM — A small independent eSIM store with straightforward regional bundles and no subscription upsells. A tidy port-day option where its regions match your itinerary.
- ByteSIM — A data-pack retailer with wide country coverage and daily-allowance plans. No cruise SKUs; useful ashore in the Caribbean and Mediterranean.