Is Apple ever going to fix "Tattoogate" issue ?

Some tattoos and some fingernail polish have been problematic for medical equipment since shortly after the inception of optical sensors—it can be difficult or impractical to get a good pulse oximetry reading through polish when using the common fingertip sensor, for instance.

With Apple Watch, Apple uses photoplethysmography, and that technique—that's a very commonly-used technique, too—is based red and on green light, and problems with the transmissivity of either or both of those colors through skin can or will make readings unreliable or unavailable.

Per Apple: Permanent or temporary changes to your skin, such as some tattoos, can also impact heart rate sensor performance. The ink, pattern, and saturation of some tattoos can block light from the sensor, making it difficult to get reliable readings.

Log some feedback with the folks at Apple: Product Feedback - Apple

I personally wouldn't expect a revolution in optical sensor technologies here. The optical properties of human blood haven't appreciably changed in quite a while.

From a profit stand point they’re not losing out on much compared to those with no wrist tattoos. Unfortunately I doubt this will ever be resolved.

Hi, im afraid its made no difference to me ,my arms are tattooed all the way to my fingers, and the series 6 performs no better than my 5 did, this is a big disappoint 😳