eSIM for Finland
Data for Helsinki, the lakes and Lapland, installed before you fly. Finland is on the Europe plan, so the ferry to Tallinn or Stockholm and a Lapland trip that strays into Sweden or Norway stay on one eSIM. The sauna, by local custom, stays offline.
Choose your plan
The Finland plan covers Finland only.
Crossing borders?
The same 10 GB in a package that keeps working past Finland.
Also on the Europe plan
38 other countries share the package with Finland. A few of them:
Good to know
What's included, when it starts, and how to get connected.
- Included countries
- The Finland plan covers Finland only.
- Local networks
- In Finland your eSIM connects to DNA and Telia — 4G/5G where the network offers it.
- When validity starts
- Your package starts when your phone first connects to a network at the destination — not when you install it. Crossing a border does not restart it.
- Installation and activation
- Install the eSIM while you still have internet — at home or on Wi-Fi. Installation does not start validity. If you already have a onesim eSIM installed, a new package is added to it — no second installation. Setup guide
- Calls and texts
- onesim is data-only. Calls and messages work over data in apps like WhatsApp or FaceTime; your usual SIM keeps your number.
- Support and refunds
- Message the onesim support team from the app or the website. If a package cannot be installed or used, the refund policy explains what applies. Refund policy
Your first night in Lapland.
Most flights into Lapland land at Rovaniemi, Kittilä or Ivalo, often by way of Helsinki. The airport is the easy part — Rovaniemi’s is three kilometres from Santa Claus Village — and the cold is the hard one: it flattens a phone battery long before it bothers you.
- 1
Before you leave home
Install your onesim eSIM over Wi-Fi and leave the line switched off until you land. If you are visiting from outside the EU, check the visa rules for your passport; the EU’s Entry/Exit System takes fingerprints and a photo on your first entry to the Schengen area, which may be at Helsinki rather than in Lapland. Pack the power bank in your hand luggage, and book December huskies early.
- 2
Turn on your data
When the plane has landed, open Settings → Mobile Data, pick the onesim line for data and switch data roaming on for that line only. That first connection starts the package, in Helsinki or in Lapland, whichever comes first. Your home SIM stays in the phone with its own data roaming off, so calls and texts to your usual number still reach you.
- 3
From the runway
At Rovaniemi the Arctic Circle crosses the runway, and the Airport Express bus runs to Santa Claus Village and the railway station, with tickets sold on board. If you hire a car, watch for reindeer: the herders’ association counts 4,000 to 5,000 hit by traffic every year, mostly from October to December and at dusk and dawn. Never stop on the road for the photo, and if you hit one, call 112.
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Keep the phone warm
Apple designs iPhones for 0 to 35°C; below that the battery can drain fast or the phone can switch itself off, and it recovers once it warms up. Carry it in an inside pocket and keep a power bank and a short cable with you. For the northern lights, the Finnish Meteorological Institute puts the best hours at 9 p.m. to 1 a.m., and a clear sky matters most.
The sauna is the one place in Finland your phone should not go.
Finland has an estimated 3.3 million saunas for 5.6 million people, and in December 2020 its sauna culture joined UNESCO’s intangible heritage list. There are saunas in apartment blocks and summer cottages, in a gondola on Helsinki’s SkyWheel and at public pools, where, Helsinki’s tourist board notes, a former president is a regular. Finland has also topped the World Happiness Report nine years running. Some Finns, and at least one Guardian headline, think the two are related.
The rules are few and firm. Shower first. In the single-sex saunas at public pools swimsuits are banned; in most mixed public saunas a swimsuit or a towel is fine. Sit on a pefletti, the disposable seat cover, and ask before you throw water on the stones: that steam, löyly, is the point, and at Kotiharju whoever sits in the hottest spot decides. Leave the phone outside. Helsinki’s own guide calls the sauna one of the few places left to find ‘offline calm’.
In Helsinki, Kotiharju, the city’s last public wood-heated sauna, has been going since 1928. Allas Sea Pool sits on the harbour by the Market Square, Löyly is a sauna and restaurant by the sea, and Sompasauna is free and heated by whoever gets there first: no staff, no showers and no photos. Between rounds, the custom is a cold shower or a dip in the sea. The sea is optional. The sauna is not.
Reading about Finland
Finland questions.
Answers about data, coverage and setup for Finland.
In Finland itself, usually not: roam-like-at-home applies within your plan’s fair-use allowance. The package is for visitors from outside the EU, from the UK, the US, Switzerland or Türkiye, whose home tariffs usually charge extra here: think of a British family on a Christmas flight to Rovaniemi. It is also for European SIMs whose allowance will not survive a week of maps, aurora alerts and photos of reindeer.
Yes. Estonia and Sweden are on the Europe plan, so Tallinn, about two hours across the Gulf of Finland, and Stockholm keep the same package once the phone finds a land network. The Stockholm ships call at Åland, which is Finland but outside the EU’s tax area, hence the tax-free shop. At sea, a ship’s own satellite network is not on the plan: keep your home SIM’s data roaming off on board.
In the towns, the ski resorts and along the main roads, mostly yes; out on the fells and in the wilderness, coverage comes and goes on any SIM, so download offline maps first. Norway and Sweden are on the Europe plan too, so the package carries on across either border. At the Three-Country Cairn, an 11 km walk from Kilpisjärvi, Finland, Sweden and Norway meet in a lake, all three on the same package.