Fuente: Wipo "Sensorization" Wearable Ring or Band with Close-Fitting Spectroscopic Sensors A wearable ring or band can have spectroscopic sensors on its inner circumference. The ring or band can change: the angles at which light beams from sensors are transmitted; the radial locations of sensors around the inner circumference; and/or the distances between sensors and a person's body. The ring or band can also have an expandable and/or compressible chamber or layer on its inner circumference. The ring or band can also have a flexible, elastic, and/or articulated segment as part of its circumference.