My Bride and I both wear them. My Bride is not diabetic. And it is somewhat useful for her. She normally does low carb, but often has cheat meals. She had french toast a couple of days ago, and had a couple of slices thick crust pizza yesterday.

She knows that it is not accurate.

I find it totally useless for any treatment decisions. If you were to rely on it, there would be highs and lows because it is so inaccurate.

I have purposely induced highs and lows and it tells me both are normal. It can also tell me a normal nondiabetic finger stick is high or low within a minute of 2 successive readings.

They are worse than useless at this time. People could die if they relied on them for treatment decisions.

Avoid them at all costs at this time.

None have been approved for use or sale by any country in the world.
For good reason.

China will sell you anything.

They only good use I get from my smart watch is it makes and receives better calls then my phone, oh and it does have google pay, just tap and go😄