Greece eSIM

Not with a British passport for up to 90 days in any 180-day period. The UK government says your passport must have been issued less than ten years before you travel and be valid for three months after the day you leave Schengen; border officers can also ask for a return or onward ticket and proof you can pay for your stay.

The EU's Entry/Exit System is now running across Schengen and registers a photo and fingerprints on first entry. Unusually, the UK government says the Greek authorities have indicated they won't collect biometrics from British travellers.

Near land, yes; mid-crossing the phone can latch onto the ship's satellite instead, which isn't part of your plan. Download maps before long crossings and it reconnects as you approach land.

Cosmote, Nova, Vodafone. Which one you connect to depends on local signal.

Anywhere the plan’s networks have signal, including Athens, Santorini, Mykonos; rural and mountain areas depend on local coverage.

Yes. Operators here are listed with 5G; each plan's networks show which.

It depends on the plan: some keep a usable speed of 1 Mbps / 5 Mbps; others drop to 128 Kbps / 384 Kbps / 500 Kbps / 512 Kbps, which is enough for messaging; others stop data.

It starts when the eSIM first connects to a network. You can install it before you go.

Every plan here states personal hotspot support, so you can share data with a laptop or travel companions. It comes out of this eSIM’s allowance.

No. Each QR code installs once. If you delete the eSIM or reset the phone, it can't be installed again, and once it has connected to a network it can't be refunded.

Some plans add data, some add days, and some can't be topped up; each plan says which. Top up from the eSIM in My eSIMs. There's nothing new to install.

Yes. The listed price is the final price.