This work investigates the applicability of available Internet of Things (IoT) technologies to 5G use cases in Brazil. We are particularly interested in two priority verticals: smart cities and agribusiness. It has been selected one use case for each of these two verticals, considering the particularities of the Brazilian scenario. For the smart cities vertical, the application of surveillance cameras in public lighting was chosen due to its high impact in terms of cost savings and improvement in public safety. In the agribusiness vertical, the application of cattle monitoring was chosen since Brazil is one of the largest beef exporter in the world, representing more than 6% of its GDP (Gross Domestic Product). For the chosen use cases an analysis of the limitations of the available IoT technologies such as LPWA (Low Power Wide Area) has been presented to guide future deployments.