IoT SIM Cards for Estonia: 3 Networks, 2G, 3G, 4G/LTE & more
Our IoT SIM cards for Estonia reach 3 networks here on a single profile, with 2G, 3G, 4G/LTE, 5G, NB-IoT, LTE-M, Satellite coverage to ensure reliable connectivity for your IoT devices across Estonia.
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IoT SIM Coverage for Estonia
Com4 IoT SIM cards connect to 3 networks in Estonia on a single profile.
| Operator | 2G | 3G | 4G/LTE | 5G | NB-IoT | LTE-M |
|---|---|---|---|---|---|---|
| Elisa Eesti AS | – | – | ✔ | ✔ | ✔ | ✔ |
| Tele2 Eesti Aktsiaselts | ✔ | ✔ | ✔ | ✔ | – | – |
| Telia Eesti AS | ✔ | – | ✔ | ✔ | ✔ | ✔ |
Why Com4’s IoT SIM Card for Estonia?
Non-steered SIM
Com4 SIMs are non-steered and carrier-agnostic. The modem connects to the strongest signal available rather than defaulting to one partner network.
One profile across the Baltics and the EU
The same SIM works across 190+ countries and 750+ networks. Devices moving between the Baltic states and the wider EU stay on one profile with no swap required.
API-first SIM management
Polaris CMP exposes SIM and device management through an API, so connectivity fits into the software stack rather than sitting beside it in a separate portal.
Ready for the 2G and 3G shutdowns
Com4 publishes a shutdown tracker by country and network. Our SIMs carry LTE-M, NB-IoT, 4G and 5G on one profile, so capable hardware keeps working without a field visit.
Pilot to national rollout
No minimum contract. Pay-as-you-go or data pooling. You pay for active SIMs only, with data from EUR 0.001/MB and volume discounts as you scale.
Free trial and Test Lab
Start with a free trial and validate hardware behaviour in the Com4 Test Lab before committing to a rollout.
What do you get with Com4’s IoT SIM Card for Estonia?
What Our Customers Say About Com4's IoT Connectivity Solutions
Kristian Kaurstad Morthen
Founder and CEO, Dimensions Agri Technologies
Bjørn Toreid
Founder and CEO, MedThings
Malin Giselsson
Head of technology, Gomero
Ole Johan Aspestrand Bjerke
Managing Director, Soundsensing
Mohammad Ali Koteich
Head Engineer, Bane NOR
Svein Erik Gregersen
Chief Operations Officer, Remora Robotics
Henrik Holen
Chief Commercial Officer, Sensorita
Lars Lunde Birkeland
Commercial Director, Just Eat Norway
Jens Brynildsen
Managing Director, Maketronics
Christian Johannessen
CEO and Founder, Beehive Project
Jens Espeland
Product Developer, Dignio
Which Com4 technology for which use case in Estonia?
2G & 3G
Existing installed base; legacy alarm panels; devices scheduled for module replacement
4G & 5G
Video and camera feeds; gateways and routers; digital signage; Fixed Wireless Access; remote operations
NB-IoT
Utility metering; environmental sensors; alarm panels; fill-level sensors; smart home devices
LTE-M
Asset and vehicle tracking; fleet telematics; healthcare wearables; mobile alarms; logistics
Satellite
Remote agricultural land; isolated energy assets; backup connectivity for critical sites

Try Com4 IoT SIMs in Estonia at no cost
Test our SIMs in your own hardware before you commit to anything. The kit is free, carries no contract, and gives you 60 days to evaluate.
What the free test kit includes:
- Up to 5 SIM cards per applicant
- 100 MB of data per SIM per month, usable within the EU
- A 60-day validity period
- eSIM form factor available on request
- 2G, 3G, 4G, 5G, LTE-M and NB-IoT all supported on a single SIM
If you are integrating connectivity into your own software, pair the kit with Polaris API access and test the whole path rather than just the SIM.
IoT Case Studies
See how companies in Estonia build on Com4 IoT connectivity.

Soundsensing: IoT-Powered Noise Monitoring for Preventive Maintenance
Proactive building maintenance with Soundsensing's real-time noise-monitoring sensors and ML software for commercial properties.
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How Sensorita revolutionizes waste management on construction sites with IoT connectivity
Revolutionizing Construction Site Waste Management with Sensorita and Com4: IoT Connectivity, AI, and Radar-Based Sensors. Measure accurate fill levels.
Speak to Our
IoT Expert Today
Tell us about your deployment in Estonia and we will get back to you with coverage, pricing and a test kit.
IoT SIM Card for Estonia – Frequently Asked Questions
What is the state of IoT in Estonia?
Estonia is an EU member state, so EU electronic communications rules apply. The defining change right now is the 2G and 3G withdrawal, which runs per network and decides what hardware is still viable. Regionally, GSMA data shows NB-IoT deployed more widely here than LTE-M. For the live position in Estonia, see our coverage tool and sunset tracker.
Should I use NB-IoT or LTE-M for a deployment in Estonia?
NB-IoT suits static endpoints sending little data on a long battery life. LTE-M holds a session through cell handover, so it suits anything that moves. One catch: LTE-M has wholesale roaming agreements while NB-IoT lags, so NB-IoT devices can reach fewer networks. Com4 SIMs carry both.
When are 2G and 3G being switched off in Estonia, and what happens to my devices?
There is no single national date. Timelines run per network, so check our 2G and 3G sunset tracker, filterable by country and network. Devices with LTE-M, NB-IoT or 4G fall back on the same Com4 profile without a site visit. 2G-only modules need replacing, and we will audit yours.
Do I need to register IoT SIMs in Estonia, and is permanent roaming allowed?
Rules diverge across Europe, and permanent roaming is not treated uniformly even inside the EU. Some countries require IoT SIM registration, some exempt machine-only SIMs, a few restrict permanent roaming. Com4's position for Estonia is stated above, and we confirm it against your deployment. Given assets move freely across the Baltic states and into the EU, check every country your devices reach.
How do I test Com4 connectivity in Estonia before committing?
Order a free test kit: up to five SIM cards, 100 MB per SIM per month, 60-day validity, eSIM on request, and 2G through 5G plus LTE-M and NB-IoT on every SIM. Five SIMs lets you test more than one hardware variant at once. There is no minimum contract.