“…Despite this lim has been investigated as an NIGST for a continuous glucose monitoring wrist or forearm by VitalSpex Pro & Bioptx Band, WristTee, LIFELEAF, an Section 4.6 on product classification). More recently, proof-of-concepts measuring glucose levels using PP studied through the ear canal (Figure 7a) and fingertip (Figure 7b) [35,36,3 and Mandic [39] developed a proof-of-concept in-ear device equipped w pulse oximeter that enables continuous and non-invasive blood glucose (Sanmina by Sanmina Corp., San Jose, CA, USA)).The device utilizes an infr a PPG chip (connected to a data acquisition board with Bluetooth capability) process real-time data for blood glucose estimation. While capturing gluco a commercially available glucometer, the proof-of-concept device achieved More recently, proof-of-concepts measuring glucose levels using PPG have been studied through the ear canal (Figure 7a) and fingertip (Figure 7b) [35,36,39].…”