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Customer Review
Reviewed in the United States on July 17, 2021
I am a medical doctor. I was intrigued by the apparent simplicity and unobtrusivness of this product for both personal use and possibly for my patients.
Despite the reviews, I gave it a shot.
Without getting into too much technical detail, I will just say that I was surprised by both day and overnight values and patterns.
They simply didn't add up medically.
I have 2 other devices (one consumer grade and 1 medical grade) and brought another one home from work. I compared the 4 devices against each other across various times and over a 2 week period.
All mfg instructions were carefully followed and for the ring, multiple fingers were used.
Bottom line: the 3 other devices show a high degree of internal consistency and the patterns of variability matched other physiologic parameters appropriately.
This device showed striking inaccuracies more than 40% of the time. These types of inaccuracies and their degree could EASILY lead a personal physician to be alarmed and to order unnecessary testing and consultation. Pulmonary function testing, sleep studies, echocardiograms and the like are expensive. With all testing comes the risk of false positive results leading to further testing. Testing in these situations is not free of risk of harm.
After a general 'customer with an issue' email, in subsequent mails (2) I expressed my concerns and offered my assistance and data to the company (for free). After an initial reply to my first general email, requesting my contact information (in retrospect probably automated), my communications were ignored.
Again, this device is NOT RETURNABLE and is so willfully inaccurate that we are looking into which agency and process to use to report it.
The company does not respond.
Despite the reviews, I gave it a shot.
Without getting into too much technical detail, I will just say that I was surprised by both day and overnight values and patterns.
They simply didn't add up medically.
I have 2 other devices (one consumer grade and 1 medical grade) and brought another one home from work. I compared the 4 devices against each other across various times and over a 2 week period.
All mfg instructions were carefully followed and for the ring, multiple fingers were used.
Bottom line: the 3 other devices show a high degree of internal consistency and the patterns of variability matched other physiologic parameters appropriately.
This device showed striking inaccuracies more than 40% of the time. These types of inaccuracies and their degree could EASILY lead a personal physician to be alarmed and to order unnecessary testing and consultation. Pulmonary function testing, sleep studies, echocardiograms and the like are expensive. With all testing comes the risk of false positive results leading to further testing. Testing in these situations is not free of risk of harm.
After a general 'customer with an issue' email, in subsequent mails (2) I expressed my concerns and offered my assistance and data to the company (for free). After an initial reply to my first general email, requesting my contact information (in retrospect probably automated), my communications were ignored.
Again, this device is NOT RETURNABLE and is so willfully inaccurate that we are looking into which agency and process to use to report it.
The company does not respond.
