I’ve been seeing a ton of non invasive blood glucose meters that are really pulse ox machines in disguise. I was almost thinking of buying one to test it out but the more I read deeper, The fda has a warning about them Do Not Use Smartwatches or Smart Rings to Measure Blood Glucose Levels: FDA Safety Communication | FDA
Also heres an ad I saw https://www.docenin.com/products/new-high-precision-non-invasive-blood-glucose-meter?st=&variant=7ba81977-f66c-4347-86df-c7791fa7da42&gad_source=1&gbraid=0AAAAA9wghZCkdzFtlxWAv8PlvM0RL_iyo&gclid=Cj0KCQjw9Km3BhDjARIsAGUb4nwywXpDmjkMK70XwLkTsq41i1CSXgA9SxrHAPMw5nJDVpQ6YHPTR_UaAvBREALw_wcB
Totally fake,not a glucose meter at all. And there are hundreds of knockoffs just like it
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That’s what I’ve been assuming. You couldn’t get any kind of info on how they work. I mean at a basic level.
That’s strange. Left over pulse ox’s from covid probably.
There’s a whole lot of this kind of stuff coming out, driven largely by the needs of the smart-watch makers who are seeking to create biometric-app integration within their respective tech eco-systems. Dreams of AI Personal Health Assistant killer-apps dancing in their heads. The problem being that this stuff has to be non-invasive to be attractive to the general consumer. Pulse, blood-ox, respiration, even sleep cycles are low-hanging fruit. But any tech that requires inserting something into your body tends to be a barrier to your casually curious costumer. I’m seeing lots of ads for devices that promise to deliver BG data non-invasively aimed at your general fitness-concerned population. Some of them do seem to be genuine, though their FDA status is another question. Certainly none of it is cleared for dosing decisions or AID systems. Would be nice if consumer-level competition pushed this kind of tech to being competitive with your Dexcom or Libre, but I’m not holding my breath. Developers have been trying to slay this particular beast since the Glucowatch with little to show for it.
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The Glucowatch. Did you mean the electrocution torture device? I had one for 2 or 3 weeks for a clinical trial. The sensor wrapped around ur wrist and you could not exercise because sweat would make it malfunction. Also could not get it wet.
The sensor had a small needle that stayed just in your skin which was irritating and Itxhy. The worst part was when it took a reading, felt like an electrocution and I developed ptsd from waiting for the next one to hit. And it was never accurate. More like a random number generator. It was not noninvasive. There is a good reason it failed so miserably.
I would love a true noninvasive cgm, but as of now they do not exist, not one that is reliable anyway.
It’s just so much worse when they advertise it’s a glucose meter when it doesn’t even try to measure glucose.
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Timothy, thanks for the ad on the fake glucose meter. I’ve seen links to those, but haven’t bothered to follow them yet.
This one was rather hilarious, on two fronts.
(1) The only place where the words “blood glucose” appears is the headline. In the rest of the ad, you see only “pulse oximeter,” even in the photos of the various devices. Which is a handy device to have, but nothing like a Dexcom.
(B) I was curious about the company that markets it, Docenin, so I went to their “About” page. I’ve gotta quote the first paragraph:
“Docenin was founded by Orange Agilent Technology LLC in the United States. It is a professional art decoration manufacturing enterprise, engaged in the research, development and production of handicraft weaving, Christmas gifts and handicraft flowerpots and illustration vases.” And one other sentence: “Docenin products are all manufactured from logs…”
Priceless! 
I wooden use such a thing if I were you!
—Keith
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Apple and Samsung were working on a watch based non-invasive glucose meter using Raman Spectroscopy. I think the deal breaker was power usage and possibly having it in an acceptable size.
I remember a table top unit using Raman Spectroscopy but can’t find it.
R.S. Technology might offer ways to measure various things in blood such as ketones, anemia and more. It does not measure interstitial glucose but actually the blood.
Even in this day of micro-miniaturization and ultra low power electronic devices, generating radio frequency and analyzing in a wearable device, is probably beyond current state of the art.
Edit to add this link from January 2024 that Apple and Samsung are still investing R&D $ in the technology.