Friends Kingdom: Re: [iPad] Apple Watch wrist detection failing with some tattoos, users complain [2 Attachments]

Tattoo ink includes metals. I forgot the details but that much I remember.

~KLM

\\ "Antisocial behavior is a trait of intelligence in a world full of conformists" ~Nikola Tesla //

On Apr 30, 2015, at 8:11 AM, 'Carlee Marrer-Tising' c-marrer-tising@bluewin.ch [iPad] <iPad@yahoogroups.com> wrote:

That's interesting. I know nothing about the pigments used in tattoos and had no idea about their opacity. Thanks for the explanation, Jim.  Do you think they will be able to find a fix for this issue and do you have any idea what that would be?

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-------Original Message-------

From: Jim Saklad jimdoc@icloud.com [iPad]

Date: 30.04.2015 16:55:21

To: iPad@yahoogroups.com

Subject: Re: [iPad] Apple Watch wrist detection failing with some tattoos, users complain [2 Attachments]

One (or more) of the articles I read stated clearly that dark-pigmented skin was not an issue at all, just the ink in tattoos. This shows how many things have to be considered when bringing a completely new product to the market! Who would have ever thought that a tattoo would be a problem for a watch!

I would.

Not for time-keeping, but for a sensor methodology that involves shining a light deep into the skin and monitoring the reflectance.

A tattoo, with some opaque pigments, would be like sliding a piece of aluminum foil between the watch and the skin.