Are non-invasive blood glucose monitoring smartwatches accurate & Do they work? | Read description!

Do Not Trust These Devices!

***No blood glucose measurement from a non-invasive smartwatch should be trusted by diabetics***
Please read this article (excerpt below the link):

“ 'Water interferes with measurement in optical methods, and our bodies are filled with water. If you have any subtle changes in amounts of water, that can dramatically affect the signals you’re measuring,' says Movano CEO John Mastrototaro.

...Mastrototaro also noted that substances within the body aren’t the only things that make isolating the glucose signal difficult. External and environmental factors like stray light, movement, and poor skin contact with the sensor can also throw off noninvasive measurements. Plus, infrared light is essentially a form of heat. It’s invisible to the naked eye, but all objects — including humans — give off some kind of infrared heat. And sensors aren’t always able to tell whether that heat’s coming from your smartwatch or a sweltering summer day."

[ImposterJo]

Thank you for posting this short video my dad has been looking into getting something like this and now we have a better understanding thanks to you

[sargon]

I bought the F57 HR band cheap 30 something dollar watch. I found the blood pressure, pulse reader, thermometer, pedometer and pulse oxygen reader to be generally 90-99% accurate, so I know someone who had a fasted Laboratory 99 mg/dl glucose, and the FL57 watch put him at 117 mg/dl (6.51 mmol/l) in the morning. I myself have fasting glucose in upper 90s usually. and this watch pegs me at 108-112 in the morning, and 125 mg/dl after I eat a sugary meal. Glucose test strips I have, VerioOne Touch put me at 96 mgl fasting, and 120-144 mg.d/l after a breakfast of approx. 100 grams or more of carbs, at 1/2 hour postprandial. (I do not have diabetes, or Pre-diabetes). My A1C is about 5.2 (104 mg.dl avg glucose throughout the day) the smart watch averages about 6.5 mmol/l or 117 mg/dl or puts me at an A1C of approx. 5.7) so, I believe the smart watch is consistent with being about 85% accurate for me, not dissimilar to the study by T Chang · 2022, which found of 23 subjects smart watch glucometry was " 84.34% clinical accuracy". Still, much more serious study needs to be done on this technology, to make it accurate enough for a wide sampling of people. At present, I do not believe it is sufficient to detect pre-diabetics from normoglycemics, but the technology MAY be sufficient to detect frank diabetes mellitus if we apply the <1998, standards of 140 mg/dl (fasting > 7.75 mmol/l) or any post-prandial value of >200 mg.dl (>11.1 mmol/l), but further clinical research is needed. It is very probable the Diabetic testing strip, and pharmaceutical companies which is a billion dollar industry, are financially threatened by non-invasive methods, (or cheap methodology like urine glucose reagents- for screening frank diabetes over the renal threshold*ie. 180mg/dl+) so that FDA clearance or long term studies on large cohorts to perfect this technology are wanting - and not by coincidence. It is well known that blood pressure, body mass index, age, gender, genetics, body fat percentile, pulse oxygen, temperature, heart rate and variability are correlated with blood glucose, so non-invasive methods aggregating all this data could likely improve upon the current smart watch glucometry. (It is not rocket science that over 80% of diabetics have a body mass Index exceeding 25, for instance.)

[clark]

As a physician of 40 years, no watch accurately shows glucose at all. I use a FREE app on my iPhone called CARDIO to first do my ECG or Pulse rate then add to the record my O2 and glucose in the note. At the end of the month you send a image of the record to your computer for printing or send it to you physician.

I ordered one and have been wearing it for more than a day. Definitely not accurate!

[Pratyut]

we tried the latest Diranditric watch and found it very different than blood measurement, not useful.

[davidgrim]

Ordered the EP03 watch recently and the PTT fuction is explained. It comes with a ecg patch for your chest for long term ecg functions and that's what PTT is for.

[doctorsoftware]

NO sirve su glucómetro.
Hice un video para Aliexpress donde mi glucómetro accu check decía que tenia 270 de glucosa en sangre, pero según este smartwatch, yo tenía solo 5.5 (menos de 100).
.
Totalmente errado, no sirve ni como referencia.
.
Aliexpress me devolvió el dinero.

[lhh]

Hello and Thanks for your videos! I'm interested in Blood Glucose which displays in mg/dl vs mmol...and Blood Pressure. I watched your videos and never saw the standard US reading in mg/dl. Do you any smart watches that display this way plus do Blood pressure you really like... Thank You... Lonnie

[futurethinking]

You know you provided no information about them or study on their accuracy, etc. This is not really helpful at all.

[ericdavid]

They follow microsoft they do not provide any support, or instruction to calibrate al set default zeros. No use.