Abstract: A system for tracking fluid consumption of a user from a fluid container in real-time includes a cap connected to the fluid container, the cap including a micro-electro-mechanical system to detect motion and orientation of the cap in relation to the fluid container, a first transducer to transmit sound waves toward the fluid stored within the container, a second transducer to receive the echo of the sound waves, a computing device to generate data pertaining to the fluid consumption of the user based on information from the micro-electro-mechanical system and the transducers, and a communication system to transmit the fluid consumption data to a cloud computer via a network to permit at least one party of interest to have access to the fluid consumption data.