Systems and methods for providing a smart hydration container or bottle which accurately tracks a user's liquid intake. The smart hydration container utilizes a new capacitive sensing technology which does not require a complicated design for capacitive conductive surfaces and provides accurate capacitive measurements which map to volume measurements. Through the use of calibrated data, the smart hydration container accurately measures capacitance “as a whole” of the entire container's contents even when the container is not resting upright. In some implementations, the smart hydration container utilizes a combination of capacitive sensing, motion sensing, position sensing, and/or temperature sensing to provide an accurate measure of liquid volume in the container. The capacitive sensor may be electrically shielded by a passive conductive sensor shield, a grounded conductive sensor shield, or an active conductive sensor shield.