In addition, smart watch manufacturers have gradually popularized the blood oxygen saturation measurement function of smart wearable products, which is also a factor that makes such devices more popular.
According to FPT Shop system statistics in the first half of 2022, 4/5 of the best-selling watch models in the system are devices with SpO2 measurement function, such as Apple Watch Series 7 41 mm and 45 mm, Mi Band 6, Redmi Watch 2 Lite. At CellphoneS, the best-selling SpO2 wearables were Apple Watch Series 7, Samsung Galaxy Watch 4, Huawei Watch GT3, Band 6, Xiaomi Redmi Watch Lite 2 and Mi Band 6.
Some people have reported some inconveniences when measuring SpO2 with the watch, such as the need for the device to be firmly attached to the hand, which restricts movement when worn. Plus, since it's not a dedicated device, many people still have doubts about the accuracy of the results after purchasing it.
While SpO2 measurement functions are gaining popularity on smart wearables, experts and manufacturers advise users to use the measurements only as reference information, which may not achieve the same accuracy as dedicated machines in some cases. For example, on the Watch 7's introductory page, Apple states that the SpO2 measurement feature is only for monitoring general health, not for medical purposes such as self-diagnosis or consultation with a doctor.
Therefore,no Watch can replace doctors.But if you need a professional watch in blood pressure monitoring,you can have a look of BP doctor watch.