Skip to main content

Apple admits that tattoos confuse the heart rate monitor on the Apple Watch

Apple Watch Sport
Andy Boxall/Digital Trends
We’ve all heard people say, “That tattoo won’t look so nice in 20 years,” but how about, “That tattoo won’t play nice with future wearable technology!” Err … What? It seems that some people with dark wrist tattoos are having problems with the heart rate monitor on their Apple Watches.

Updated on 05-01-2015 by Malarie Gokey: Added statement from Apple on the effect of dark tattoos on the heart rate monitor.

Shortly after news of the issue went viral, Apple added a statement to its user guide, explaining why tattoos interfere with the heart rate monitor and what users can do to work around the issue.

“The ink, pattern, and saturation of some tattoos can block light from the sensor, making it difficult to get reliable readings,” Apple wrote on the support page. “If you’re not able to get a consistent reading because of any of these factors, you can connect your Apple Watch wirelessly to external heart rate monitors such as Bluetooth chest straps.”

The issue seems to be most prevalent with people who have tattoos covering their wrists that are dark in color. Apparently, the dark tattoo ink absorbs the green light the watch gives out in order to read your heart rate, thus rendering the heart rate monitor useless. To make matters worse, the Apple Watch actually uses the heart rate monitor to determine when you are wearing the device. If the watch can’t detect that you’re wearing it, the screen locks with your passcode. Many users are also unable to use Apple Pay due to interference from their tattoos, because to add an extra level of security, Apple Pay will only work when the watch is being worn.

Along with Apple Pay, a number of apps are not working either, and many users are having trouble with even simpler functions, such as checking the watch through wrist movements. Rocking body art shouldn’t bar you from using the latest tech, and it will be interesting to see how Apple deals with this, or if those bearing wrist tattoos are simply out of luck.

While you can temporarily work around this issue by turning off  “wrist detection,” this will also disable the watch’s Apple Pay functionality. Seeing as there’s no quick fix for the issue, other dark or solid tattoos that limit the light penetrating your skin will continue to be a problem. So if you’ve got both your wrists tattooed, then its possible you’ll soon be returning your Apple Watch and waiting for the next one.

Editors' Recommendations

Andre Revilla
Andre Revilla is an entrepreneur and writer from Austin, TX that has been working in and covering the consumer tech space for…
The Google Pixel Watch 3 could steal this Apple Watch feature
A person sitting down and wearing the Google Pixel Watch 2.

Google is readying an upgraded wireless connectivity suite for its upcoming smartwatch that improves location tracking accuracy and helps with remote device unlock. The folks over at 9to5Google took a peek at the code of the latest Play Services app update and found mention of ultra-wideband (UWB) for device unlock.

The Google Pixel Watch 2 already offers a device unlock feature that keeps your smartphone unlocked as long as it is close to your smartwatch. Built atop Bluetooth-based proximity sensing, this system creates a “trusted device” pair, which essentially tells your phone that you are nearby (courtesy of the watch on your wrist) and keeps it in an unlocked state.

Read more
One feature will make the Apple smart ring worth waiting for
An Apple smart ring concept by Jonas Daehnert

The wearable market is constantly evolving. It started with fitness trackers that were worn on your wrist, and then we got smartwatches such as the Apple Watch in 2015. These days, smartwatches are a dime a dozen, but we are quickly entering a new era of wearables: the smart ring. One of the first smart rings to hit the market was the Oura Ring, which launched in 2015 through a Kickstarter campaign. The second iteration came out in 2018, and the current third generation of the Oura Ring was released in 2021.

I’ve been using the Oura Ring for several years now, but many competitors have shown up in the space recently: Movano’s Evie Ring, the RingConn Smart Ring, Ultrahuman Ring Air, Circular Ring Slim, and more. Samsung even teased its own upcoming Galaxy Ring at the end of its January 2024 Galaxy Unpacked event.

Read more
5 features I want in the Apple Watch Ultra 3
The Apple Watch Ultra 2 laying on the ground, showing the Modular Ultra watch face.

When Apple debuted the Apple Watch Ultra in 2022, it was one of the company’s best new products that year. After years of rumors and speculation, it finally arrived and exceeded expectations with the best battery life for an Apple Watch, incredibly useful new features like the Action button, a super-bright and large display, and more.

A year later, Apple launched the Apple Watch Ultra 2. Though still a great smartwatch, it felt a bit more like an iterative upgrade than something big. It had a new S9 processor that allowed for the Double Tap gesture and localized Siri requests, and an even brighter display. But otherwise, it looked identical to the original Apple Watch Ultra.

Read more