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 $7.17 per gigabyte in Antigua and Barbuda. That's $0.0070 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 ($7.17/GB) | Tourist roaming pass | Cruise-ship Wi-Fi |
|---|---|---|---|
| 1-day cruise stop | $3.50 (500 MB) | — | $25–35 |
| 5 days (resort) | $17.92 (2.5 GB) | $45–110 | — |
| 10 days | $35.84 (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.
In Antigua and Barbuda you pay for megabytes, not for the story wrapped around them. Strip out expiry dates and fine print, and pricing stops being a game anyone can rig.
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