Docked
In port
Local towers. Maps, Uber, the restaurant text. Any travel eSIM can do this. GigSky Cruise & Land does it on the same profile you used at sea, so you’re not swapping SIMs on the pier.
Does an eSIM work on a cruise?
An hour after the horn, your phone goes dark. That’s normal.
Starlink is the ship’s Wi-Fi. GigSky is an eSIM on the ship’s cellular. Mixing those two is how cruise forums lose their patience. Here’s the version you can use at sailaway.
The horn
The dark hour
About an hour after sailaway, bars vanish. That’s the 12-mile line, not a broken eSIM. Have a drink. Walk the deck. The maritime radio comes up.
Sea day
Open water
Telenor or Cellular at Sea. WhatsApp, mail, light photos. A few Mbps. Interior cabins are weaker than the deck. Walk upstairs before you email support.
Cellular at sea is not Wi-Fi
The ship sells you Starlink (or whatever they branded this year) as Wi-Fi. Per device, per day. That’s the cabin. GigSky is a pico-cell in the mast. Your phone thinks it found AT&T’s cousin. The backhaul is still satellite. That’s why a cruise eSIM feels like a phone plan, not like Netflix.
Cellular at Sea is one network. Telenor Maritime is the other. GigSky sells both, under two family names. Cruise & Land is Telenor. Cruise + Land is Cellular at Sea. Search your hull. Buy the one the app lists.
European ferries
Same physics, shorter trip. Stena, DFDS, Color Line, Brittany, Irish Ferries. A Ferry Only pack starts around the price of a bad sandwich. Add Europe if you keep driving after the crossing. Ferry Wi-Fi is a lottery. The eSIM is usually the whole conversation.
Night before
Unlocked phone. Install GigSky. Apply ESIMDUDE. Kill data roaming on the home SIM — maritime roaming is how people get a $400 surprise. Wait out sailaway. Do this on hotel Wi-Fi, not at the gangway.
Try the 100 MB trialFAQ
Does an eSIM work on a cruise?
A regular travel eSIM works in port and dies about 12 nautical miles out. A GigSky cruise eSIM rides the ship’s cellular at sea, then local towers when you dock.
Is GigSky the same as ship Starlink Wi-Fi?
No. Starlink is the ship’s Wi-Fi. GigSky is an eSIM on the maritime cellular antennas. Different radio. Different bill.