There are compelling reasons to apply this technology to wearables. The Apple Watch is widely touted as a health gadget, and it can detect indicators of atrial fibrillation, low blood oxygen levels, and ovulation cycles (as of Series 8). Non-intrusive glucose monitoring might make it a must-have tool for diabetics, since it eliminates the need for a specific instrument that penetrates your skin, such as a continuous glucose sensor that delivers data from an electrode-equipped tiny needle to an external receiver. The simple technique might offer the Apple Watch an advantage over rival smartwatches.
