SIM Cards for Yacht Crew

The SIM card problem for yacht crew

A shore-based person's phone situation is simple: one SIM, one country, one provider, one monthly bill. A yacht crew member's situation is the exact opposite. You might spend May in Spain, June in France, July in Italy, August in Greece, October transiting to the Caribbean, and December in the BVI. Each country change potentially means a different carrier, different coverage, and potentially enormous roaming charges if you're not paying attention.

The traditional solutions are all inadequate:

• Roaming on your home SIM: £3–10/day for data roaming adds up to £90–300/month. For a whole season, that's £500–1,500 in unnecessary charges. Completely unacceptable.
• Buying a local SIM in each port: Requires finding a phone shop, identity verification, queuing, and time in port. You need an unlocked phone. Each SIM needs to be set up manually. And you lose your existing number every time — people can't reach you.
• Going without data: Not realistic when the Facebook job groups, weather routing apps, and chart plotters all require connectivity.

eSIMs — the solution that changed everything

An eSIM (embedded SIM) is a digital SIM card built into modern smartphones (iPhone XS and later, most Android flagships from 2019 onward). Instead of a physical SIM card, the carrier data is downloaded digitally to your phone. You can install multiple eSIMs and switch between them in your phone settings.

For crew, this means: you buy a data plan digitally through an app, it downloads to your phone instantly, and you activate it without physically visiting any shop or waiting for delivery. Done in 5 minutes from the boat. When you arrive in a new country, buy a new eSIM for that region in the same app, again in 5 minutes.

Your original phone number — whether it's a UK, US, or Australian number — remains active on your physical SIM. You can receive calls and texts on your home number while using the eSIM for data. This is the key: you don't lose your number.

Airalo — how it works for yacht crew

Airalo is the market leader in eSIM apps and the most widely used by crew. It offers eSIM plans for individual countries, regional bundles, and a global plan — making it genuinely flexible for crew who move between regions.

Which Airalo plans to use

• Europe regional plan: Covers 30+ European countries including Spain, France, Italy, Greece, Turkey, and most countries crew visit in the Med season. Typically €10–25 for 5–15GB depending on the plan. This covers your entire Med season with one or two purchases.
• Caribbean regional plan: Covers most Caribbean nations including BVI, Antigua, St Maarten, and the US Virgin Islands. Essential for the Caribbean season.
• USA plan: For Fort Lauderdale and US east coast programs. High data allowances are available.
• Global plan: Airalo's global plan covers 130+ countries on a single plan — excellent for crew transiting between regions frequently or making passage through multiple countries in a short period.

Typical Airalo costs

As a guide: 5GB Europe regional data costs approximately €8–12; 10GB costs approximately €15–20; 15GB costs approximately €22–28. These prices are updated regularly and vary by plan — check the Airalo app for current pricing. For crew who use 5–10GB/month on data, an Airalo regional plan costs £10–20/month — compared to £100–300 for roaming on a home SIM.

Holafly — the unlimited data alternative

Holafly takes a different pricing model from Airalo: rather than selling a fixed data allowance, Holafly sells plans based on duration with unlimited data. This makes it straightforward to budget — you pay for 7 days or 30 days and use as much data as you want within that period.

Holafly plans tend to be slightly more expensive than equivalent Airalo plans for light users, but better value for heavy data users who consume more than 10–15GB/month. For crew who use their phone as a hotspot for a laptop (common when doing admin work in port), Holafly's unlimited plans can be better value.

The coverage network for Holafly is broadly similar to Airalo. Country and regional coverage is comparable for the main crew destinations — Europe, Caribbean, USA, Asia Pacific.

Traditional SIM options (still relevant)

eSIMs don't make traditional physical SIMs irrelevant in all circumstances:

• Spanish SIM for Med-based crew: If you're spending 6+ months based in or around Spain (Palma, Barcelona), getting a local Spanish SIM (Movistar, Orange, Vodafone Spain) gives you the cheapest possible data for your primary location. Use this as your main SIM during the Med season and use Airalo/Holafly eSIMs when you move to other countries.
• Older phones without eSIM: If your phone doesn't support eSIM (generally phones older than 2019), you're limited to physical SIMs. In this case, a European SIM with reasonable roaming coverage (some providers offer this) combined with local SIM purchases in your primary port is the best option.
• Satellite communications: For offshore passages, none of the above works. Satellite phones (Iridium, Inmarsat) or satellite data services (Starlink is increasingly common aboard superyachts) are entirely separate from the SIM card discussion. This guide covers shore-based connectivity only.

The practical crew SIM strategy

Based on the above, here's the recommended setup for most crew:

1. Keep your home phone number active. Maintain a minimal-cost SIM from your home country — just enough to keep the number alive and receive important calls/texts from family, banks, and HMRC/IRS. Many carriers offer a basic plan for £5–10/month that can be managed online.
2. Install Airalo on your phone now. Before your first season, download the Airalo app and set up an account. When you arrive in your first port, buy the regional eSIM for that area. You'll be connected in 5 minutes.
3. Get a local Spanish SIM if Med-based. If you're spending your main time in Spain, a local SIM gives you the cheapest voice and data in your primary location. Use it as your primary data source while in Spain, and activate the Airalo eSIM when you cross into France or Italy.
4. Consider Holafly if you use heavy data. If you regularly exceed 10GB/month — streaming, using your phone as a hotspot — Holafly's unlimited plans may be better value than Airalo's data packages. Run the maths based on your usage.
5. Make sure your phone is eSIM compatible and unlocked. Check your phone model (iPhone XS or later; most major Android flagships from 2019). Check it's unlocked from your home carrier — a locked phone can't use eSIMs from other carriers. If locked, ask your carrier to unlock it (you're entitled to this if your contract has expired).