The cruise pier in St. John's, the resort in Jolly Harbour, the catamaran to Barbuda
Antigua and Barbuda sees three kinds of traveler: the cruise passenger with eight hours on the island, the resort guest who barely leaves a half-mile of beach, and the sailor cruising between the two islands. The connectivity needs differ — but all three share the same problem: you can't usefully buy a SIM at the cruise pier in the time you have, and the resort Wi-Fi tops out at the lobby.
Roamzy charges $11.16 per gigabyte in Antigua and Barbuda. That's $0.0109 per megabyte, billed in real time. The Caribbean zone runs at a higher wholesale rate than the EU, and we don't pretend otherwise — the rate sits where the underlying cost sits. One per-MB rate across 193 countries means same model, country-specific number.
How much will Roamzy actually cost on this trip?
Resort travelers actually use less cellular data than they think — much of the day really does happen on lobby Wi-Fi. Plan on 0.5 GB/day on cellular:
| Trip length | Roamzy ($11.16/GB) | Tourist roaming pass | Cruise-ship Wi-Fi |
|---|---|---|---|
| 1-day cruise stop | $5.58 (500 MB) | — | $25–35 |
| 5 days (resort) | $27.90 (2.5 GB) | $45–110 | — |
| 10 days | $55.80 (5 GB) | $80–180 | — |
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 local SIM at V.C. Bird International runs $15–30 plus passport, KYC, and a queue after a flight from London or New York. On a one-day cruise stop, the math is the queue alone. The eSIM is already attached before the gangway lowers.
Where does Roamzy actually work on the ground?
- St. John's and Jolly Harbour — solid 4G/LTE, 5G rolling out in the capital
- The south coast resort strip (Falmouth, English Harbour, Carlisle Bay) — 4G across the developed zones
- The Atlantic side and Half Moon Bay — workable 4G; signal weakens off the main road
- Barbuda — 4G near Codrington and the lagoon, patchy elsewhere
- The catamaran crossing to Barbuda — partial signal mid-channel; expect drops
Resort Wi-Fi here follows the regional pattern: lobby and restaurant strong, room weaker, beach often nothing. The eSIM bridges those gaps. Same on a yacht — the moment you anchor near a populated cove, signal returns.
How do I install my Roamzy eSIM?
| Plug type | Voltage | Frequency | iOS | Android |
|---|---|---|---|---|
| Type A, B, G | 230 V | 60 Hz | iPhone XS+ | Pixel 3+, Galaxy S20+ |
- Sign in to Roamzy via Telegram or Google
- Top up the eSIM with a minimum of 20 USDT — stablecoins, no cards, no banks, no FX surcharges
- The QR code appears in the dashboard once payment confirms
- Settings → Cellular → Add eSIM → scan QR (do this on home Wi-Fi before the cruise)
- The counter starts at the cruise pier in St. John's or on landing at ANU
Supported stablecoins, networks, and common iPhone/Android setup errors are in the FAQ.
What are Roamzy's honest limitations?
Caribbean travelers historically lose money to three things, and Roamzy doesn't close those traps — they don't exist in the product.
- No welcome promo that bait-and-switches your second top-up. Top-up #1 and top-up #20 cost the same per megabyte.
- No fine-print throttling that surfaces on the catamaran day. One rate, full speed.
- No auto-renewal you forgot to cancel before flying home. Balance runs out, the eSIM stops.
It's not a marketing gimmick — it's an engineering decision born from indifference to gimmicks. You can't make a tariff cheaper than no fine-print and no expiry — so we don't.
What if my cruise continues to other ports?
- Saint Kitts and Nevis — short hop south on most itineraries
- Dominican Republic — common return-leg pairing
- If you want the underlying mechanics — how roaming actually gets priced and why it hurts