Apple watch won't wake up when near NFC reader like the iPhone 6/6Plus

[jst1nt]

I thought this was interesting....

"Apple Watch

Double-click to pay and go. You can pay with Apple Watch — just double‑click the button next to the Digital Crown and hold the face of your Apple Watch near the contactless reader. A gentle pulse and beep confirm that your payment information was sent."
https://www.apple.com/apple-pay/

I assume this is to save on battery life (considering Apple is already struggling for battery life) so that the watch isn't constantly searching for NFC reader.....

 

[The Doctor11]

I think this is just so you don't pay accidentally. Pretty hard to hold your phone to a NFC reader on accident, but pretty easy to do with a watch.

 

[jst1nt]

I think this is just so you don't pay accidentally. Pretty hard to hold your phone to a NFC reader on accident, but pretty easy to do with a watch.

That makes sense.... wasn't thinking about that.

 

[Julien]

Also it is probably more to do with security. If a NFC comes in contact with your iPhone you must use your Finger Print ID to authorize the transaction. The Watch doesn't have this. So someone could hold a NFC 'spoofer' next to your Watch and make an unauthorized transaction. So using the Crown for the authorization prevents this.

 

[jamesjingyi]

Watch sounds cool in this sense but they would have to build in some way of cutting it off if someone stole it. I mean it would be devastating if someone got your watch and paid for **** tons of stuff with it before you could stop them..

 

[jst1nt]

Watch sounds cool in this sense but they would have to build in some way of cutting it off if someone stole it. I mean it would be devastating if someone got your watch and paid for **** tons of stuff with it before you could stop them..

I believe that when it looses contact with the skin you have to reenter the passcode to unlock the apple watch.

 

[Piggie]

I believe that when it looses contact with the skin you have to reenter the passcode to unlock the apple watch.

I'm guessing there must be a delay, what 30 seconds or a minute?

What do you think?

 

[The Doctor11]

I'm guessing there must be a delay, what 30 seconds or a minute?

What do you think?

I'm thinking no delay.

 

[Piggie]

I'm thinking no delay.

The reason I think there must be a delay is for the time you adjust the watch on your wrist, or due to strap tightness it slips on your wrist.

If the watch moves against your skin, it would I'm sure mess it's monitoring signals up for a few moments, hence me thinking there must be some small delay before it's sure it's signal loss is that you've taken it off as opposed to you have just readjusted it's position.

 

[jamesjingyi]

I believe that when it looses contact with the skin you have to reenter the passcode to unlock the apple watch.

Now that is pretty cool

 

[BvizioN]

The reason I think there must be a delay is for the time you adjust the watch on your wrist, or due to strap tightness it slips on your wrist.

If the watch moves against your skin, it would I'm sure mess it's monitoring signals up for a few moments, hence me thinking there must be some small delay before it's sure it's signal loss is that you've taken it off as opposed to you have just readjusted it's position.

My guess it there could be a smart way to differentiate movements around your wrist from completely being removed from your wrist.

 

[Runt888]

The reason I think there must be a delay is for the time you adjust the watch on your wrist, or due to strap tightness it slips on your wrist.

If the watch moves against your skin, it would I'm sure mess it's monitoring signals up for a few moments, hence me thinking there must be some small delay before it's sure it's signal loss is that you've taken it off as opposed to you have just readjusted it's position.

My guess it there could be a smart way to differentiate movements around your wrist from completely being removed from your wrist.

I'm willing to bet that it can tell roughly how far it is from your skin (it has multiple photosensors in slightly different locations so calculating a distance shouldn't be difficult). That being the case, it should be able to tell the difference between adjusting/moving on your wrist and being taken off completely.

 

[kdarling]

The question that's been brought up before is:

Is it using just proximity, or something more sophisticated?

If just proximity, then sliding something under it would fool the sensors, while you remove the watch.

If it looks for a pulse once in a while, then the question is what is the delay, and can something with a pattern on it be used to slide back and forth and fool the sensors until it's on a new wrist.

Of course, if it also checks for Bluetooth connection to the owner's phone, that helps a lot. A thief walking away with the watch, would soon find it locked.