The four-day Singapore trip
A typical Singapore work trip is short and dense. Land at SIN after a long-haul, MRT to Marina Bay or take the Grab, swap into a suit at the hotel, on a Zoom in the cab from Changi to the office. Slack, email, calendar, three video calls before lunch — none of that is optional, and none of that survives a forty-minute queue at a SIM kiosk.
Roamzy charges $4.71 per gigabyte in Singapore, billed in real time at $0.0046 per megabyte. No subscription. No expiry on the unused balance. No "5 GB for 30 days" pre-buy. One per-MB rate across 192 countries — the shape of the invoice, not a marketing line.
How much will Roamzy actually cost on this trip?
The business pattern in Singapore runs heavy: Grab from Changi to Marina Bay, Maps along Orchard Road, Slack and Telegram all day, two or three Zoom calls back to the home team, LinkedIn for in-country meetings, contactless payments via Apple Pay or PayNow QR everywhere, the SQ or Cathay app for the next leg. Plan on 1–1.5 GB/day:
| Trip length | Roamzy ($4.71/GB) | Tourist roaming pass | Local SIM at SIN |
|---|---|---|---|
| 2 days (single meeting) | $9.50 | $15–35 | $10–25 + 20–30 min at the counter |
| 5 days (full business cycle) | $23.55 | $35–80 | $15–35 + paperwork |
| 2 weeks (project / trade show) | $65.95 | $70–160 (often two passes) | $25–50 + 30-day cap |
Competitor prices in columns 3 and 4 are 2025 ranges based on typical offerings; exact figures depend on your home carrier and the airport store you visit. Roamzy's rate in column 2 is our actual published rate from the pricing page.
Changi has well-organized SIM counters, but on a two-day trip the half-hour costs more than the savings. The eSIM is already attached before you've cleared immigration.
What changes if I'm here to work, not tourism?
Hotel Wi-Fi in Singapore is generally excellent. A five-person Zoom on it — usually fine. At peak it occasionally stutters. That's the kind of detail you learn when you're on screen-share and the video starts pixelating, not before the trip.
Changi lounge Wi-Fi is fast and reliable, but once you're in the cab, the eSIM is the connection. The cab from Changi to Marina Bay is 20 minutes — a normal Zoom call duration. Same rate either way — that's the point.
Coverage across the city-state
Singapore is one of the densest cellular footprints in the world. The shape on the ground:
- Marina Bay, Orchard, CBD, Sentosa — 5G at 95%+, multiple operators, throughput stable
- The MRT — continuous signal across stations and most tunnel runs, including the Cross-Island Line
- Jurong, Tampines, Bishan, Woodlands — solid LTE everywhere, 5G in commercial centers
- Pulau Ubin and offshore islands — workable LTE at the jetty, weaker on the far side
- The Causeway to JB — signal hands over at the border (where you'd start paying the Malaysia rate)
- Changi Airport — strong throughput across all terminals
How do I install my Roamzy eSIM?
| Plug type | Voltage | Frequency | iOS | Android |
|---|---|---|---|---|
| Type G | 230 V | 50 Hz | iPhone XS+ | Pixel 3+, Galaxy S20+ |
- Sign in to Roamzy via Telegram or Google
- Top up with a minimum of 20 USDT — 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 your home Wi-Fi before you fly)
- The counter starts the moment you land at SIN — already attached while you're in the passport line
Plugs are Type G, same as the UK. Supported stablecoins, networks, and common iPhone/Android setup errors are in the FAQ.
What are Roamzy's honest limitations?
Business 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. The rate on top-up #1 is the rate on top-up #20.
- No fine-print throttling that surfaces during a Zoom call. One rate, full speed — first GB and the hundredth cost the same $0.0046/MB.
- No auto-renewal you forgot to cancel that hits expense reports next quarter. 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 trip extends across the region?
Singapore is the natural hub for the wider region. Roamzy's rate doesn't change at the border — the meter just starts billing at the new country's rate:
- Malaysia — over the Causeway from Woodlands to JB, separate country rate
- Indonesia — short ferry to Batam or flight to Jakarta
- Hong Kong — common four-hour business extension
- The mechanics of regional roaming and why a "6-country APAC bundle" usually costs more than per-MB — explained here