Product info
Helsinki eSIM plans
| Unlimited data · 5 days | $15.99 | Buy eSIM |
| Ohayu recommendsUnlimited data · 10 days | $27.99 | Buy eSIM |
| Unlimited data · 15 days | $37.99 | Buy eSIM |
| Unlimited data · 30 days | $49.99 | Buy eSIM |
| 3GB prepaid eSIM · 14 days | $5.99$2.00 / GB | Buy eSIM |
| 5GB prepaid eSIM · 30 days | $9.49$1.90 / GB | Buy eSIM |
| 10GB prepaid eSIM · 30 days | $14.49$1.45 / GB | Buy eSIM |
| 15GB prepaid eSIM · 60 days | $17.79$1.19 / GB | Buy eSIM |
| 20GB prepaid eSIM · 90 days | $21.49$1.07 / GB | Buy eSIM |
| 50GB prepaid eSIM · 90 days | $45.79$0.92 / GB | Buy eSIM |
You can install your eSIM before the trip and activate it when you arrive in Finland. Validity starts after eSIM activation.
Plan details
How much mobile data you need
What's the best eSIM for Helsinki?
Long weekend – 3 GB
Maps, saunas, design shops.
A week – 10 GB
Navigation plus the archipelago.
Helsinki and Lapland – 20 GB
South plus an aurora trip north.
Working from Kallio – Unlimited
Tethering a laptop.
Coverage and network
Coverage south to north
Finland mobile networks
Finland averages 131 Mbps at 36th globally, and Helsinki runs well ahead at 205 Mbps. Finns were early to mobile everything and coverage reaches further north than you would expect for a country this empty. (Speedtest by Ookla, June 2026)
Speedtest Global Index · Mobile · Helsinki · June 2026
Download
205.04 Mbps
Upload
28.45 Mbps
Latency
15 ms
Global rank
#35 of 98
Helsinki and beyond
- City centre, Kallio, Punavuori: Strong throughout, and on the metro and trams including the tunnelled sections.
- The archipelago and Suomenlinna: The ferry out to Suomenlinna keeps signal the whole way. Further into the archipelago it thins between islands.
- Lapland and the far north: Better than most people assume - Rovaniemi, Levi and Saariselkä are properly covered. The gaps are the wilderness between them and the national parks, where you should not rely on a phone.
- Cold kills batteries: At -25C a phone can drop from half charge to dead within the hour, which matters most when you are standing outside at night waiting for the aurora. Carry a power bank inside your coat. No network fixes this.
Finland, and the EU
The plan covers all of Finland, and EU roaming carries it to Estonia, Sweden or anywhere else in the union.
How to install eSIM
Connected in 3 steps
- 01
Buy before you fly
Choose your data plan before your trip.
- 02
Download & install
Log in to your account, tap your eSIM, and follow the on-screen instructions.
- 03
Land & activate
Activate when you arrive in Finland. Turn on roaming for the eSIM and it connects to a local network.
Before you buy, make sure your phone supports eSIM — see Ohayu compatible devices list or dial *#06#. It's a free request to your phone's settings. If you see the EID number — your phone is eSIM-compatible.
Arriving in Helsinki
Airport Wi-Fi at HEL
Vantaa has free unlimited Wi-Fi at up to 100 Mb/s with no credentials needed - among the better airport networks anywhere.
Side by side
Helsinki eSIM Comparison
Indicative comparison based on publicly listed Finland plans as of August 2026. Competitor pricing and policies change - check their sites for current terms.
Frequently asked questions
Where to buy a SIM card in Helsinki?
R-kioski, supermarkets and Elisa, DNA or Telia stores. DNA in particular markets its prepaid as needing no Finnish ID, so it is straightforward for visitors.
Do I need ID to buy a prepaid SIM in Finland?
No. Finland has no prepaid registration requirement, and you can buy one at a kiosk with no documents. A minority of travel sites claim passport registration is needed - that is not accurate for Finland.
The real friction is topping up: some Finnish top-up portals want Finnish online banking credentials. Cash top-up at an R-kioski or an Otto ATM is the reliable fallback. An Ohayu plan is paid for before you travel, so it does not arise.
Will it work in Lapland for the northern lights?
In the towns and resort areas, yes - Rovaniemi, Levi and Saariselkä have solid coverage, and Finnish networks reach further north than most. Out in the wilderness and the national parks there are real gaps, so download offline maps.
The bigger practical problem in Lapland is not signal, it is cold. At -25C a phone battery can go flat within an hour, usually just as the aurora appears. Keep it inside your coat and take a power bank.
Does one plan cover the ferry to Tallinn?
Yes - Finland and Estonia are both in the EU, so the Tallinn run costs you nothing extra. Expect a dead patch in the middle of the Gulf where neither side reaches; the onboard Wi-Fi is the fallback if you need to be reachable for the whole two hours.
eSIM not working in Finland?
In deep winter, check the phone has not simply gone flat from the cold - that is the usual cause up north. In the wilderness there may be no coverage. Failing that, make sure Ohayu is selected for mobile data and roaming is switched on, then toggle Airplane mode. Chat and support@ohayu.com are open 24/7.
