I'm concerned because my fasting blood sugar is slightly high.

It seems to be higher than the average person, although lower than for those with diabetes.

Some machines show over 100, depending on the device.

And some machines come out in the late 90s...

So I bought three machines... I don't know exactly what kind of machines they are.

I trust and use the two that appear similar out of the three.

What kind of machines is everyone using?