Sabesp, the water and sanitation company of the State of São Paulo, Brazil, has announced the deployment, with operator Vivo, of what is described as the world's largest Internet of Things (IoT) connectivity project for smart water management. Through this 14-year strategic partnership, 4.4 million smart water meters will be securely connected in São Paulo City and São José dos Campos. By uniting Vivo's connectivity expertise with Idemia Secure Transactions' secure and scalable eSIM IoT technology, the project ensures robust, energy-efficient, and resilient connectivity, even in remote areas. By enabling precise consumption monitoring and early detection of leaks, the connected infrastructure helps to promote conscious consumption of water. The digitalisation of water metering services also improves transparency for consumers to take part in more responsible resource management.