the machine is defective the machine is defective. i do not know where to return it. I emailed the support team but no reply.

You get an extra charge because it comes from Canada Machine works, well packed, you do have an extra charge that I did not know because it is charged in Canada. They should also include a longer cord.

DISAPPOINTED: DISAPPOINTED: The Pulse Oximeter works as expected. However, cannot access the app. Have tried to contact company for support but their email does not even work. For me, the main attraction was to be able to use it with the app.

The display is small and very dark The display is small and very dark, virtually invisible. Therefore there is no use for this instrument. I am very disappointed, and I would return it to you for full refund. Please send me instruction or procedure how to proceed the return

My unit doesn’t work My unit doesn’t work. On the heart rate on of the digits partially works. Half of the number is cut off. It constantly beeps as well. I would not buy this again. I am going to email company for refund. Another issue there’s no contact info PD return info in the pamphlets that are with the item. A totally waste of money. I would give it ZERO stars if your rating bar would have given me that option. A 1 is to much. Unit totally unusable!