The NBM-200MP from OrSense, an Israeli company is a new pulse oximeter that monitors and displays oxygen saturation of Hb (SpO2), low perfusion oximetry, SpO2 pulse rate, plethysmogram and hemoglobin, all non-invasively and continuously.
“Analysis of the signal provides the sensitivity necessary to measure glucose, hemoglobin, oxymetry (under severe low perfusion levels), pulse-rate, and other analyte concentrations.”
You can read more here, here, and here. Based on what I read, the product is CE marked but not yet approved in the U.S.