Apple warns dark tattoos can confuse Apple Watch sensorsMay 2, 2015 - 10:50 AMT PanARMENIAN.Net - Apple is officially warning inked Apple Watch users that they might have trouble getting reliable heart rate readings, Macworld reports. The company has updated its Apple Watch support documents to note potential problems for some tattooed users, after complaints started popping up around the web. “Permanent or temporary changes to your skin, such as some tattoos, can also impact heart rate sensor performance,” the document now reads. “The ink, pattern, and saturation of some tattoos can block light from the sensor, making it difficult to get reliable readings.” During workouts, the Apple Watch’s heart rate monitor uses a method called photoplethysmography (or PPG), which shines green light onto the skin and looks for the change in absorption that comes with each pulse. During regular activity, the Watch also measures infrared light reflection, which presumably uses less power than the green LEDs. If a wrist has too much heavy ink, it makes sense that the Watch would have trouble shining a light through the skin. Keep in mind that not all tattoos will run into problems. Tests of several tattoos by iMore found that solid red and black ink caused the biggest issues, with wildly inaccurate readings and complete failures. Lighter colors produced only slight inaccuracies, and patterned or variegated ink didn’t seem to cause any problems. Photo: tatrating.com Top stories Yerevan will host the 2024 edition of the World Congress On Information Technology (WCIT). Rustam Badasyan said due to the lack of such regulation, the state budget is deprived of VAT revenues. Krisp’s smart noise suppression tech silences ambient sounds and isolates your voice for calls. Gurgen Khachatryan claimed that the "illegalities have been taking place in 2020." Partner news Most popular in the section | Armenia, Russia discuss life extension of Metsamor nuclear plant Issues regarding the extension of life of the 2nd power unit of the Armenian Nuclear Power Plant were discussed in Yerevan. Armenians stage more campaigns against territorial concessions to Azerbaijan Protesters blocked more roads across Armenia on Friday, April 26 in continuing attempts to scuttle territorial concessions to Azerbaijan. Czech-Armenian military cooperation discussed in Yerevan A delegation led by the Director General for the Industrial Cooperation Division of the Ministry of Defence of the Czech Republic visited Armenia. U.S. welcomes efforts to define Armenia-Azerbaijan border The United States welcomes efforts to define the border between Armenia and Azerbaijan, says Vedant Patel. |