Good morning from South Jersey warriors. 21 September, 2023.
The technology for non invasive blood glucose monitoring - has NOT received approval by any country in the world because of the inaccuracies.

A cgm is less accurate than a finger stick and this tecnology is significantly less accurate than a cgm. But lack of approvals and inaccuracies does not stop China from producing them.

They can be DANGEROUS, if a diabetic uses them for treatment decisions.

We have tried 2 separate blood glucose smart watches for 3 months each between my Bride and me.
They can show trends, but are quite inaccurate. My Bride is not diabetic.

I keep my numbers in a very tight range, TITR. My numbers are 5.7(103) to 7.5(135). Both smart watches report numbers from 2.7 to 8.8. In fact I can take 2 readings within a minute and one can read 3.3 and the next 6.8, but the readings are usually within 3 mmol/L. It only reads in mmol/L

But the blood pressure was somewhat more static and closer to being accurate. But it reports seemingly only good bp. It almost always reads about 120/80, whether my bp is 115/75 (medicated) or 150/100 (unmedicated).

The pulse rate, pulse Ox, and body temperature were spot on.

I haven't tried the ecg yet.

The larger one is easier to use and has a nicer display.

Do they have useful information - Yes. Is the data they provide other than blood glucose useful, somewhat yes.

As a nondiabetic my Bride loves hers, since she feels the info confirms good numbers. But when compared to fingersticks, it is all over the place.

Is the blood glucose numbers useful. Yes and No. My 1 hour reading, I can get 2 successive readings within a minute of 2.6(36) and 8.3(150).
A fingerstick tells me my actual number is 9.0(162).

At 2 hours my fingerstick tells me my number is 7.5(135). The smartwatch tells me 3.8(68) and 8.0(144) at 2 minute intervals. Not accurate or useful.

For a nondiabetic with a self correcting system, it probably makes them feel good.

For a diabetic, who will make treatment decisions based on the information --- a definitive NO. They are still just a novelty.

They are unapproved by every country in the world. That doesn't stop China from selling them.

They can be DANGEROUS, if you rely on them for treatment decisions.

Please stay with the fingersticks, or cgms, they are accurate and useful.

The smart watches are... DANGEROUS ... when used for treatment decisions. AVOID RELYING on them. They can kill you.

I personally would not rely on ECG for cardiac monitoring. Your basic vitals are no problem but I feel cardiac monitoring, especially ECG should be off limits. To many critical variables in cardiac monitoring and interpretation. Also ECG at times can miss early signs of a MI. (Heart attack)
It can detect early signs of blocked arteries by waves in ECG but only a MD can interpret these waves. Your cardiologist will be your best friend🌹

That would be a good one.