The Apple Watch is officially available for public consumption, but some owners are already discovering not all wrists are equal.
In a revised Apple support page, Cupertino has acknowledged that one of the device's marquee features, the heart-rate monitor, can be impacted by changes to a user's skin – namely tattoos.
The sensor's technology, known as the photoplethysmography, bombards the wearer's skin with both green LED and infrared light to monitor the blood flow during and between heart pumps. To put it very simply, the difference in this amount of blood is how the sensor monitors how quickly your heart is pumping, hence your rate.
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In a revised Apple support page, Cupertino has acknowledged that one of the device's marquee features, the heart-rate monitor, can be impacted by changes to a user's skin – namely tattoos.
The sensor's technology, known as the photoplethysmography, bombards the wearer's skin with both green LED and infrared light to monitor the blood flow during and between heart pumps. To put it very simply, the difference in this amount of blood is how the sensor monitors how quickly your heart is pumping, hence your rate.
Continue reading…
Continue reading...