NoSQL cloud databases are flexible and scalable non-relational databases hosted in the cloud, offering benefits such as cost-effectiveness, faster data retrieval, and accommodating changing storage and processing requirements. They provide a platform to store, process, and retrieve data without size limitations, handling various data models including document, key-value, graph, spatial, time-series, and vector. NoSQL cloud databases are often used in Database-as-a-Service (DBaaS) models, freeing developers from operational tasks, and are available on public cloud providers delivering enhanced agility and efficiency for application developers. They offer mobility, elastic scale, easier management, security, and reduced capital expense compared to traditional relational databases. By choosing the right NoSQL database, organizations can align with their business objectives and select a data model that suits their specific needs.