Glucose readers on the finger

Hello everyone

Lately I get a lot of devices to measure glucose through laser on a finger.Are devices like oximeters?

Does anyone know them, do you know if they work?

Thanks and greetings

@Solman Hello.For what I understand, at the moment this type of positive devices do not work well.Come on, they are not reliable at all, so do not trust that advertising.

Good morning, those devices are a scam, I bought one (on its Facebook page I came with the Siemens brand, I bought it from the countersembling and less bad than the deliveryman let me open it, because the content of the package was a simple oximeter.