By some estimates smart cities represent the biggest opportunity for mobile service providers.
Others might disagree, connected home or connected car or manufacturing will be bigger market opportunities.
IoT technology revenues across 12 key smart city technologies and verticals is predicted to grow from around $25 billion in 2017 to $62 billion in 2026, according to ABI Research.
Among the drivers are smart meters and video surveillance, representing $20 billion of the expected revenue.
Of course, “smart cities” might include so many verticals that it is not a single market.