Questions about Pulox Checkme O2

I just compared readings from Checkme O2 to measurements with a fingertip device (medical Econet): they correspond nicely : 93-96%

Yes, according to the manufacturer's website, everything is visible.

I would have to check, but we stopped using the device. At the lowest rating, the measurement varied so much that we had to fear an oxygen deficiency and only after tests at the doctor's did we find out that it was the device. Then we bought one for the finger. Not as comfortable, but measurements are better. Subjective opinion.

According to the product number, this is the Checkme O2.