There's a lot we don't know about the Apple Watch but little by little, small details about how the smartwatch behaves are starting to appear.

One of the most interesting new details about the Apple Watch comes via Leander Kahney at Cult of Mac and it is tied to Apple Watch security.

The Apple Watch will work side-by-side with Apple Pay, so it makes sense that the device will need to have some sort of security mechanism in place. After all, no one wants to be able to steal your watch and steal your wallet at the same time.

According to Kahney, Apple shared with him some details as to how the Apple Watch will be protected from against the secondary side effects of theft.

It all comes down to sensors. The sensors on the Apple Watch will know if a device is being worn on a wrist and when it is taken off. If you take the Apple Watch off, it will lock itself and can't be used for payments unless a code is entered into the watch. Additionally, taking the watch off and putting it on again will mean you need to enter in a security code.

We're sure Apple will figure out a way to make this entry process as seamless as possible — as to not be annoying — but it's good to know the watch can tell when it is on a wrist or just sitting on a desk or charging pod.

Other Apple Watch tidbits

Over at Yahoo Tech, David Pogue shared additional Apple Watch details and tidbits.

You know those sensors on the back that can be used for security? Apparently light flows through two of them and the other two are infrared. That lets the Apple Watch examine blood flow between the skin, which can determine your pulse rate.

Pogue also says that the Apple Watch will have one of my favorite features on the Pebble and the Samsung Gear 2: Ping My Phone. The idea is that you can use your smartwatch to locate your phone.

You know a great future Apple Watch app? Vibrate every time you get more than 10 feet away from your phone. You know, so that you can remember that you're walking away from it before it goes out of Bluetooth range.

Pogue says that for the Apple Watch Edition series — the fanciest of the three different models — it comes with a jewelry box that doubles as a charger. The back of the box apparently has a Lightning connector and the inside has the MagSafe-esque charging pad that lets the watch charger vertically.

Personally, I love this idea because if I am going to be forced to charge my smartwatch every night (which is a whole other issue), I would at least like the charging process to be as out of the way as possible. If the charger can look like a jewelry box — which is where I typically set my watches anyway — that makes it a lot easier to justify as part of a routine.

Plus, this opens up a whole world of possibilities for future third-party Apple Watch accessories. Hey Twelve South, let's see an Apple Watch HiRise!

Even with these additional tidbits, we're still only scratching the surface on the Apple Watch. The upside? Additional dribbles of information will make the four-month waiting process a little bit easier.