I am a Type 2 Diabetic and use the LibraLink system for constant monitoring of my glucose levels which works extremely well. However I have seen several advertisements on social media showing smart watch technology measuring Blood Glucose thro the skin using infra red sensors which appears to good to be true. I follow lots of tech and use it daily but I haven’t seen any verification of these watches methodology or accuracy or any approval by FDA etc. Can someone tell me if these things are legitimate and does the principle of the system actually work.