Abstract: Methods, systems, and devices for analyzing fluid using a wearable device are described. The method may include collecting a bodily fluid of a user using a fluid collection component that includes one or more measurement channels configured to change color when exposed to the bodily fluid. Further, the method may include transmitting light associated with one or more wavelengths and generating one or more signals based on the light reflected off the one or more measurement channels of the fluid collection component and received by a wearable device. Moreover, the method may include determining a color of the one or more measurement channels based on the one or more signals and determining a presence or concentration of one or more substances within the bodily fluid based on the color.

Abstract: Methods, systems, and devices for bioimpedance measurements using a wearable device are described. The method may include generating a first electrical signal using a first electrode of a wearable ring device, and receiving the first electrical signal using a second electrode of the wearable ring device. The first electrode or the second electrode may be disposed within an inner circumferential surface of the wearable ring device. Further, the method may include determining first bioimpedance data associated with a user based on a comparison of the first electrical signal generated by the first electrode and the first electrical signal received by the second electrode, and causing a graphical user interface (GUI) of a user device to display a message associated with the first bioimpedance data.