When developing a new mobile application that relies on fast and efficient data exchange, which data format is more suitable?

For a mobile application requiring fast and efficient data exchange, Protocol Buffers (protobuf) is a more suitable choice. It offers a compact binary format, reducing the size of data payloads and improving serialization and deserialization speed. This is crucial for mobile applications operating in resource-constrained environments where bandwidth and processing power are significant factors in ensuring a responsive and seamless user experience.