Cruise Wi‑Fi vs eSIM Calculator
Find the cheapest, most reliable way to stay online on your itinerary.
1) Trip basics
2) Ship Wi‑Fi
Typical presets by line (editable)
These are generic, ballpark presets to get you started — always edit to match your sailing.
| Line | Basic/Social | Premium | Svc % |
|---|---|---|---|
| Generic | 16 | 24 | 18 |
| Royal Caribbean | 18 | 24 | 18 |
| Carnival | 15 | 20 | 18 |
| Norwegian | 18 | 25 | 20 |
| MSC | 14 | 22 | 15 |
| Princess | 15 | 25 | 18 |
| Celebrity | 18 | 26 | 18 |
| Virgin Voyages | 20 | 24 | 18 |
3) eSIM in ports
Show/edit eSIM plan presets
Tip: Validity starts when you activate the plan on day one in port.
Reliability notes: signals are usually weaker while tendered offshore; ports in large cities tend to have strong 4G/5G; inside steel-heavy ship interiors, step onto open decks for better reception.
4) Results & Recommendation
Sea days (auto)
3
Total port data need
0 GB
Ship Wi‑Fi (every day)
–
Ship Wi‑Fi (sea days only)
–
eSIM only (ports)
–
—
Estimates only. Always check your specific sailing and eSIM provider terms.
How to use this calculator
- Enter cruise days, port days, devices, and your typical daily data need in port.
- Pick your line to prefill Wi‑Fi pricing (edit as needed) and whether you’ll only use Wi‑Fi on sea days.
- Choose a region and an eSIM plan preset (edit or add your own).
- Review totals: Wi‑Fi every day vs Wi‑Fi only on sea days, eSIM only, and the hybrid suggestion.
- Go with the lowest total that still fits your usage pattern; hybrid (eSIM in port + ship Wi‑Fi on sea days) is often best value.
