Singapore and Hong Kong round trips, Japan coastal loops and Vietnam to Thailand routes. The eSIM gives you local data the moment the ship docks; at sea, ship Wi-Fi is the only option, and this page tells you how to avoid the satellite bill on your home SIM.
Smallest plan of 7 days or more per country, live price. Ports marked ship Wi-Fi only have no Slashtel plan today.
| Port | Country | Covered by | Per-country plan | |
|---|---|---|---|---|
| Singapore | Singapore | Asia-20 | 1GB · 7d · $1.49 | Plans |
| Penang | Malaysia | Asia-20 | 1GB · 7d · $1.69 | Plans |
| Phuket | Thailand | Asia-20 | 1GB · 7d · $1.69 | Plans |
| Laem Chabang (Bangkok) | Thailand | Asia-20 | 1GB · 7d · $1.69 | Plans |
| Ho Chi Minh City | Vietnam | Asia-20 | 1GB · 7d · $1.99 | Plans |
| Hong Kong | Hong Kong SAR China | Asia-20 | 1GB · 7d · $1.69 | Plans |
| Shanghai | China | Asia-20 | 1GB · 7d · $1.69 | Plans |
| Tokyo | Japan | Asia-20 | 1GB · 7d · $1.69 | Plans |
| Kobe | Japan | Asia-20 | 1GB · 7d · $1.69 | Plans |
| Busan | South Korea | Asia-20 | 1GB · 7d · $1.69 | Plans |
| Manila | Philippines | Asia-20 | 1GB · 7d · $1.99 | Plans |
| Benoa, Bali | Indonesia | Asia-20 | 1GB · 7d · $1.69 | Plans |
In port and for a few kilometres out, yes: your phone uses the local network like any visitor. Once the ship is at sea there is no land network, and the ship's own cellular system bills your home SIM at satellite rates, so switch the eSIM line off and use ship Wi-Fi or airplane mode until the next port.
No. One Asia-20 plan covers every port country on this route with a single eSIM (10GB for 30 days at $40.39). Buying per country instead comes to about $17.30 for 10 plans.
The ship's maritime network appears as a normal roaming partner to your home SIM and charges several dollars per megabyte. Turn off mobile data on your home SIM before sailing and keep the eSIM line off between ports; enable it again when you can see the port.
Only over the ship's Wi-Fi package. In port, WhatsApp, maps and ride apps run on the eSIM data. Messages sent while at sea deliver when you reconnect.
Port days are short, so 3GB to 5GB covers maps, messaging and photos for a week of stops; add 5GB if you stream or upload video in port. Top-ups add data to the same eSIM without a new install.
Live catalogue prices as of 2026-09-28. Coverage means a land network in port; nothing here works at sea.