Dominica isn't the polished cruise stop next door
The other Dominica — the Dominican Republic — is all-inclusive resorts and Punta Cana flights. This one is rainforest in the volcanic Lesser Antilles, 750 km², about 75,000 people, the Boiling Lake at the end of a six-hour hike, and the Waitukubuli trail running the length of the island. Cruise ships still call at Roseau, and the inter-island L'Express des Îles ferry runs north to Guadeloupe and south to Martinique. The connectivity question is shaped by terrain: dense around the coast, thinning fast as you climb into the interior.
Roamzy charges $8.29 per gigabyte in Dominica. That's $0.0081 per megabyte, billed in real time on Dominican networks. No subscription, no expiry, no minimum bundle. One per-MB rate across 193 countries is a single billed figure, not a marketing line.
Price for the day, the week, the cruise stop
A typical visitor uses 0.4–0.7 GB per day: maps to the Trafalgar Falls trailhead, the WhatsApp coordination with the hike guide, the camera-translator on a French-Creole sign, video calls home from a guesthouse in Roseau. Call it 0.5 GB/day:
| Trip length | Roamzy ($8.29/GB) | Tourist roaming pass | Cruise-ship Wi-Fi |
|---|---|---|---|
| 1-day port stop (0.5 GB) | $4.15 | — | $20–35 |
| 5 days (2.5 GB) | $20.74 | $30–80 | — |
| 10 days (5 GB) | $41.47 | $60–130 | — |
Competitor prices in columns 3 and 4 are 2025 ranges based on typical offerings; exact figures depend on your home carrier, your hotel, and your cruise line. Roamzy's rate in column 2 is our actual published rate from the pricing page.
A SIM at Douglas-Charles (formerly Melville Hall) is sold but the kiosk hours rarely match a flight schedule, and on a cruise day there's no time anyway.
Where it works
| Region | 4G/5G | Reality |
|---|---|---|
| Roseau (incl. cruise port) | 4G/LTE | Stable in town and along the bayfront |
| Portsmouth (north) | 4G/LTE | Solid in town, weaker on the Indian River route |
| Trafalgar / Wotten Waven | 4G | Works in the villages, weakening on the trails |
| Boiling Lake hike | None | Six hours of jungle, GPS handles direction, signal returns at the trailhead |
| Mero, Calibishie, the east coast | 4G | Patchy on the cliffs, fine in the villages |
| Waitukubuli National Trail | Spotty 3G/4G | Segments near roads work; remote sections silent |
For the long hikes, offline maps and a guide. The phone is for after, not during.
How do I install my Roamzy eSIM?
| Plug type | Voltage | Frequency | iOS | Android |
|---|---|---|---|---|
| Type D, G | 230 V | 50 Hz | iPhone XS+ | Pixel 3+, Galaxy S20+ |
- Sign in to Roamzy via Telegram or Google
- Your first eSIM is free and comes with real data on us. After that, top up from $20 in stablecoins (USDT or USDC): no cards, no banks, no FX surcharges
- The QR code appears in your dashboard as soon as the eSIM is issued
- On the iPhone itself (iOS 17.4 or newer), tap Tap to install in the QR card; otherwise Settings → Cellular → Add eSIM → scan QR
- The counter starts on the gangway at Roseau or on landing at DOM
Dominica uses British plug types, the legacy of British colonial wiring. Bring a multi-adapter. Supported stablecoins and common setup errors are in the FAQ.
What are Roamzy's honest limitations?
Three traps Roamzy doesn't have because they were never built in. No welcome promo on the first top-up that flips on the second. No fine-print throttling. No auto-renewal you forgot to cancel after the trip ended.
Dominica's tariff fits on one line, which is exactly as long as an honest tariff needs to be. We didn't shorten it for effect; there simply wasn't anything else true to add.
What if my trip continues to other countries?
Dominica is the centerpiece of an inter-island ferry route through the French Caribbean:
- French Caribbean (Guadeloupe + Martinique + French Guiana) — north or south on the L'Express des Îles ferry, the eSIM hands over at the dock
- Saint Lucia — short hop south, separate country rate
- If you want the underlying mechanics — how roaming actually gets priced and why it hurts