We've got our first look at the inner workings of the Apple Watch

It's the official launch day of the Apple Watch. While you can't just walk in off the street and buy one (unless you visit one of 5 exclusive boutique stores), customers who pre-ordered the device are starting to see their orders arrive. Tech site iFixit is among the customers who have already got their smartwatch in the mail - and they've wasted no time in tearing it to pieces.

Here's a look at the internals. Note the taptic engine that provides feedback vibrations to the users.

iFixit is blogging the teardown in real-time, updating its post at every stage of the process. New York Times journalist Nick Bilton describes the process as like "an awesome Super Bowl halftime show for nerds."

Here it is side-by-side with a traditional watch mechanism:

There have been rumours that the Apple Watch might be upgradable, especially for the high-end Apple Watch Edition, to justify that £13,500/$17,000 price tag. But iFixit thinks that this is highly unlikely, given how difficult the internal chips are to remove.

The internal battery is a 205mAh, iFixit has found, compared to the iPhone 6's 1,810mAh. The smaller size of the Apple Watch's screen and its power-saving features mean it will require far less energy to run, however.

iFixit

Here's a link to iFixit's ongoing teardown liveblog »