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Apple Watch Will Use Skin Contact for Apple Pay Security
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If you just ignore the fact the the primary purpose of the sensors is to monitor your pulse via the flow of blood beneath the skin.
I think so. The Apple Watch is said to also have the "Secure Element" if it doesnt then it won't work on an iPhone 5s since this doesn't have the Secure Element either.
So you are somehow under the impression that the watch detects skin contact through temperature? I don't recall the iWatch having a thermometer. I'm pretty sure it detects the pulse in your skin to detect contact. Plastic with a pulse might do the trick though
I can imagine some sort of light simulation built in to the card.
Where there's a will, there's a way.
It's an optical sensor, not electrical. I suspect that light passes through the skin, bouncing off of bones and is picked up by other sensors. Unless you truly have "boney" hands, with no skin at all, it should work properly if worn in whatever comfortable way you wear watches. It won't need to be tight.
not sure they'd use heartbeat to determine contact for purpose of payments, more likely just capacitive touch or pressure exerted - otherwise there really would be a problem for folks with prosthetics.
So you are somehow under the impression that the watch detects skin contact through temperature? I don't recall the iWatch having a thermometer. I'm pretty sure it detects the pulse in your skin to detect contact. Plastic with a pulse might do the trick though
It can probably sense the temperature from your blood in an optical way. After all, the sensors consist of both visible and infra-red light and detectors. Infra-red would detect temperature.
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As described on the official
Watch page, the sensor detects the heart rate, not just temperature.If my heart beat stops (or suddenly jumps from fear), perhaps the watch should de-authenticate, even if it stays warm. I should not be making electronic purchases after any sort of heart attack either. I can handle re-authenticating payments after a workout at the gym... same as required after swimming laps in the pool.
Oh GOD! Not a few extra centimetres of movement! How will you survive? Then again, you might get closer to your healthkit movement targets for the day...
I'm less impressed with the watch itself as I am with Apple Pay and the "Cue" team. They seem to have outdone themselves more and more - it looks like a winner end-to-end.
Yup...as well as sweaty wrists...or hairy wrists on men vs. almost no hair on women.
Yes, I am sure Apple tested all the scenarios...but it's not like Apple is going to tell us/anyone how well each scenario works.
Ultimately I think the Apple Pay/watch is a neat idea...but I don't think it's going to be prime-time for at least 5 years...so many issues to overcome. Some examples are all the stores that need to buy new equipment, poor battery life, fear factor from the public of dumping plastic credit cards, trusting Apple (in so many countless ways), hacking, some kind of freakout by the watch resulting in all sorts of credit/payment problems...and lastly, the "I lost my iphone with all the stored credit card stuff...Apple tells me to 'just go buy another $300 iPhone'...and if I'm no longer on a cell Plan, I need to re-sign a 2 year contract or pay $600 for the full phone" problem.
Apple Pay is more in line with Siri and its promises...or the AppleTV.
And drag the dead body into a Walgreen's or Target to buy something? Seriously, some of these scenarios are as ridiculous as when people were saying "Watch out! People will start stealing your fingerprints off your coffee mug at work and fabricating fake fingers to unlock your 5S!"
something also tells me these sensors rely on light rather than pressure to detect whether the device is being worn
Are you telling me you think the electrical activity for a heart beat, which is continuously variable in rate and magnitude depending on the situation, is a valid and precise physiological measurement capable of being measured by a watch?