The Nordics (Sweden, Norway, Finland and Denmark) have the highest penetration rate for connected devices. Only half of the worlds population has fully embraced IoT devices. The US ranks seventh, ahead of Ireland and behind Denmark. Surprisingly, Bulgaria ranks 10th, while the UK, in spite of several investments in IoT projects, didnt make the top 20. The more people who have mobile broadband subscriptions, the more ability there will be to connect smart devices to them.”]
Source: https://www.bitdefender.com/blog/hotforsecurity/the-nordics-are-winning-the-game-of-iot-deployment/