This project focused on helping people better understand their body’s hydration level through the use of a wearable device. Team HydroCore developed Hydr?Meter, a non-invasive wearable device that calculates a user’s hydration level. Results are displayed within an android application, allowing the user’s phone to serve as a touch-screen interface for the device. HydroCore developed an integrated circuit to measure the bioimpedance of a user’s body and calculate hydration levels. A 50 kHz alternating current is passed through the body and the voltage generated across the body’s resistance is measured. This voltage is used to find bio-impedance, which can be related to the amount of water present in the body. The circuit is controlled by a Maxim Integrated MAX32620 microcontroller. The device sends real-time data from the analog front end wirelessly to the user’s phone, where an algorithm converts raw data into total body water percent.