APPLE HAS ADMITTED that 'Tattoogate' is real, confirming that the Apple Watch doesn't play nice on inked wrists.
The firm has warned users in a support page on its website that "some" tattoos can affect the wearable's sensors.
"Permanent or temporary changes to your skin, such as some tattoos, can also impact heart rate sensor performance," the firm said.
"The ink, pattern and saturation of some tattoos can block light from the sensor, making it difficult to get reliable readings."
Tattoogate was first uncovered earlier this week after Reddit user Guinnefan55 revealed that the Apple Watch wouldn't function properly on his tattooed wrist.
He said: "So I thought my shiny new 42mm SS watch had a bad wrist detector sensor. The watch would lock up every time the screen went dark and prompted me for my password.
"I couldn't figure out why, especially since the watch was definitely not losing contact with my skin. Also I couldn't find anything online with people experiencing this issue.
"I decided to try holding it against my hand (my left arm is sleeved and where I wear my watch is tattooed as well) and it worked.
"My hand isn't tattooed and the Watch stayed unlocked. Once I put it back on the area that is tattooed with black ink the watch would automatically lock again."
As well as interfering with the Apple Watch's ability to maintain skin contact, tattooed skin also renders the heart rate monitor on the rear of the device useless, as further testing by iMore confirmed.
The website said: "Apple uses various spectrums of light to track the blood flow through your skin. Anything that reduces that light's reflectiveness - ink pigmentation in your skin, for example - can interfere with that sensor."
iMore added that dark, solid colours appear to hinder the sensor the most, while lighter coloured ink gives slightly less misleading results. Patterned tattoos, on the other hand, don't appear to interfere with the heart rate monitor.
The site noted that natural skin pigmentation won't get in the way of the Apple Watch sensors, as it doesn't block light in the same way as artificial ink pigment or even scar tissue.
However, it has since been revealed that the Apple Watch isn't the only wearable not to play nice on tattooed wrists.
A user in the Reddit thread that first uncovered Tattoogate has chipped in to complain that it's not just the Apple Watch that is unable to function properly on inked skin.
"All three have had issues on my tattooed arm. The Basis would read [heart rate] intermittently and drain the battery 40 percent faster, the Surge would just not read [heart rate] the majority of the time, and my Apple Watch (Milanese Loop) will lock up if it shifts in the slightest."
We have been in touch with Fitbit and Intel for comment, but have yet to hear back.
So, there we have it. Tattoogate. Yet another reason that I won't buy an Apple Watch any time soon. µ
'Some of us like the misery'
That'll surely affect its credit score