Why Tattoos Might Be a Huge Problem for the Apple Watch

TIMEWhy Tattoos Might Be a Huge Problem for the Apple WatchTIMEApple Watch uses green LED lights paired with light‑sensitive photodiodes to detect the amount of blood flowing through your wrist at any given moment. When your heart beats, the blood flow in your wrist — and the green light absorption — is greater.Some Tattoos Found to Interfere With Apple Watch's SensorsMac RumorsTattoos may stop Apple Watch from workingCNNMoneyDark tattoos can throw off Apple Watch's heart rate sensorEngadgetMashable -The Vergeall 319 news articles »