Mobile Phones and SIM Cards in Finland

Getting a phone working is one of the easiest parts of settling into Finland — and one of the first things you'll want, since so much of daily life runs through your number. The catch for newcomers is that a monthly contract usually wants a Finnish personal identity code you may not have yet, while a prepaid SIM needs nothing but your passport. This guide explains the difference, compares the three operators, and decodes the one thing that genuinely surprises people: Finnish plans are sold by speed, not by gigabytes.

The Three Operators (and the Cheaper Alternatives)

Finland's mobile market is dominated by three network operators, all with nationwide coverage:

• DNA — dna.fi
• Elisa — elisa.fi (the largest operator, and the one that first introduced unlimited-data plans in Finland)
• Telia — telia.fi

All three run their own physical networks, and coverage across populated Finland is strong on all of them, including 5G in cities. Differences between them are smaller than the marketing suggests; for most newcomers, price and the in-store experience matter more than raw coverage.

Below the big three sit several mobiilioperaattori (mobile virtual network operators, or MVNOs) that resell the same networks more cheaply. The best known is Moi (also marketed as Moi Mobiili), which runs on DNA's network and has a reputation for low prices. If you want a no-frills, budget connection and don't need a store to walk into, an MVNO is often the cheapest route.

Prepaid vs Contract: Which One You Can Actually Get

This is the decision that matters most in your first weeks, because eligibility — not price — usually settles it.

Prepaid (prepaid-liittymä)

A prepaid SIM is the right choice the moment you arrive. You buy a starter pack, register it, and top it up as you go. According to Nordic cooperation guidance for residents, you do not need a Finnish personal identity code (henkilötunnus) for prepaid — a passport or other photo ID is enough, and no Finnish address is required. That makes prepaid the only realistic option before your DVV registration comes through.

You can buy prepaid SIMs almost everywhere: operator stores, R-kioski kiosks, supermarkets, and kiosks in the arrivals area at Helsinki-Vantaa Airport.

Contract / postpaid (määräaikainen or jatkuva liittymä)

A monthly contract is billed in arrears, which is why operators are pickier. To open one you'll typically need:

• A henkilötunnus (Finnish personal identity code)
• A Finnish address for billing
• Sometimes a Finnish bank account, and the operator will run a credit check (luottotiedot)

Because of the credit check, contracts are generally out of reach until you've registered with DVV and have your personal identity code. The practical playbook for nearly every newcomer is therefore the same: start on prepaid, then switch to a contract once your henkilötunnus is issued.

The Finnish Quirk: You Buy Speed, Not Gigabytes

This is the part that confuses almost everyone arriving from elsewhere. In many countries you choose a monthly data allowance — 5 GB, 20 GB, "unlimited" with a fair-use cliff. In Finland, the three main operators sell genuinely unlimited data on most consumer plans and compete instead on maximum speed.

In practice, you choose a speed tier measured in megabits per second. A cheaper plan might cap your top speed at, say, a lower tier, while a more expensive plan unlocks full 5G speeds — but in both cases the amount of data is uncapped. There's no "running out of data" mid-month and no overage bills for going over an allowance.

What this means for you:

• If you mostly use Wi-Fi at home and work, a slower (cheaper) tier is usually plenty, and you'll never worry about a data cap.
• If you tether a laptop, stream heavily, or want the fastest 5G, pay up for a higher speed tier — the data is unlimited either way.
• Compare plans by speed and price, not by "GB included," because on domestic plans the gigabytes are effectively infinite.

(Prepaid tourist-style day passes and EU roaming allowances do carry caps — see below. The unlimited-data norm applies to standard domestic subscriptions.)

What It Costs (Set Your Expectations, Then Check the Operator)

Finnish mobile is competitive and, by Western European standards, good value — partly because operators have moved away from selling scarce data. Standard unlimited-data subscriptions cluster in a moderate monthly range, with the price stepping up as you choose faster speed tiers, and MVNOs undercutting the big three.

Because operators change tariffs frequently and run regular promotions, this guide deliberately avoids quoting a single euro figure as fact. As of 2026, check the live prices directly on dna.fi, elisa.fi and telia.fi (and on Moi for a budget comparison) before you commit — the plan names and speed tiers shift season to season.

A few money tips:

• Watch for contract terms. A määräaikainen (fixed-term) contract locks you in for a set period; a jatkuva (continuous/open-ended) one is easier to leave. Check the notice period before signing.
• Bundles can be worth it if you also need home broadband from the same operator — see our guide on home internet providers in Finland.
• Moving money in to pay bills? If your salary or savings are still abroad when you set up a contract, a multi-currency account like Wise or Revolut can be a cheap way to fund early payments in euros while your Finnish bank account is still being opened.

SIM Registration: What ID You Need and Why

Finland requires SIM cards to be registered to an identified person. When you buy a prepaid SIM or sign a contract, the seller records your name and an identification number from your document — a passport or national ID card works. According to retail guidance for Finland, this is a standard, light-touch step: no biometric data is collected, and for prepaid you don't need a Finnish address or henkilötunnus.

Practically, this means: bring your passport whenever you go to buy a SIM, including at the airport. Don't expect to pick up an anonymous, unregistered SIM from a vending machine — that isn't how it works here.

eSIMs and Covering the First-Day Gap

The most stressful moment is landing with no working number — no maps, no way to call your landlord, no way to receive a verification code. Two options solve this:

1. A physical prepaid SIM at the airport. Helsinki-Vantaa has kiosks and stores in the arrivals area selling starter packs you can register with your passport on the spot.
2. An eSIM you set up before you fly. If your phone supports eSIM (most recent models do), you can install a travel data plan that activates the moment you land, then sort out a local SIM or contract once you're settled. Travel eSIM services such as Airalo let you buy a Finland or Europe data plan in advance, so you arrive already connected — a tidy way to bridge the gap before you get a Finnish prepaid SIM or a contract.

The three Finnish operators also offer their own eSIMs, but those are generally activated in an official DNA, Elisa or Telia store rather than at a convenience kiosk, so they're better suited to once you've arrived than to your first hour in the country.

A note on phones: Finland sells handsets unlocked, and EU rules mean a phone bought elsewhere in Europe will work fine. If you're bringing a phone from outside the EU, just confirm it supports the right bands (all three operators run standard 4G/5G bands) and, for eSIM, that the device isn't carrier-locked.

EU Roaming: Your Finnish Plan Travels With You

One genuine perk of a Finnish (EU) SIM is roaming. Under the EU's "Roam Like at Home" rules, you can use your plan's calls, texts and data across the EU and EEA at no extra roaming surcharge, within the fair-use limits your operator sets. So a weekend in Stockholm or Berlin doesn't trigger a surprise bill.

Two caveats:

• Fair-use data limits apply abroad. Even on an "unlimited" domestic plan, your operator caps how much data you can use while roaming in the EU; beyond that, a small surcharge may apply. Check your plan's roaming data allowance.
• Outside the EU/EEA, normal roaming charges apply. If you travel to the UK, the US, Asia or elsewhere, switch on roaming only deliberately, or use a travel eSIM for that trip instead.

Mobiilivarmenne: Turning Your SIM Into a Digital ID

Here's where Finnish telecoms connect to Finnish bureaucracy. Mobiilivarmenne (the mobile certificate) is a strong electronic identity stored on your SIM. With it, you log in to online services using just your phone number and a self-chosen PIN — no separate code list or app token.

It's part of the Finnish Trust Network (FTN), the strong-authentication system supervised by Traficom, the Finnish Transport and Communications Agency (whose National Cyber Security Centre Finland scrutinises the network's identification methods). The mobile certificate is offered jointly by DNA, Elisa and Telia, and according to the operators' own service it works with tens of thousands of services — government, municipal, banking, insurance and healthcare — including the Suomi.fi e-identification portal, Kela, and OmaVero.

The important details for newcomers, according to Suomi.fi:

• You need a postpaid (contract) subscription with DNA, Elisa or Telia — prepaid SIMs don't qualify.
• You activate it using your Finnish online banking codes (pankkitunnukset), which verify your identity during setup.
• eSIM users should check eligibility with their operator first.
• Each operator sets its own pricing, so confirm any fee with yours.

You don't have to use mobiilivarmenne — your bank credentials already serve as a national e-ID and cover the same services (see Finnish online banking IDs). But many residents find logging in by phone number and PIN more convenient than reaching for bank codes, especially on the go.

A Realistic Timeline for Newcomers

Putting it together, here's how the phone side of your move typically unfolds:

1. Before you fly / day one: Install an eSIM or buy a prepaid SIM at the airport with your passport. You're connected immediately.
2. First weeks (no henkilötunnus yet): Stay on prepaid, top up as needed. Use a travel/EU data plan if you're hopping between countries while you settle.
3. After DVV registration (you have a henkilötunnus and a Finnish address): Switch to a monthly contract if you want one, choosing a speed tier rather than a data cap. Ask to port your number so you keep it.
4. Once on a contract: Activate mobiilivarmenne if you'd like phone-based login to banks, Kela and OmaVero.

The whole point: don't wait for your personal identity code to get a phone. A prepaid SIM or eSIM gets you online on arrival, and you can upgrade to a contract later — keeping the same number — once the paperwork catches up.

Quick Answers

• Cheapest overall: an MVNO like Moi on the DNA network, especially if you don't need a physical store.
• Easiest on arrival: an eSIM bought before you fly, or a prepaid SIM at the airport.
• What to bring: your passport (for SIM registration); a henkilötunnus and Finnish address only when you move to a contract.
• Don't overthink data: domestic plans are effectively unlimited — choose your speed tier and forget about gigabytes.