Apple has just posted its Introducing iPhone 5 video on its YouTube channel, letting you watch it directly rather than on Apple’s site. If you haven’t seen it already, it’s worth a watch. There are a host of interesting details about the way that the iPhone 5 was designed and engineered, right from Apple’s industrial design chief Jony Ive and former head of hardware engineering Bob Mansfield.

They talk about how much thinner the iPhone 5 is when compared to the iPhone 4S:

Screen Shot 2012 09 13 at 9.45.53 AM 520x212 Watch Jony Ive and Bob Mansfield explain the iPhone 5s industrial design and hardware engineering

Mansfield gets hot on the new sapphire crystal lens cover:

Screen Shot 2012 09 13 at 9.51.02 AM 520x271 Watch Jony Ive and Bob Mansfield explain the iPhone 5s industrial design and hardware engineering

Forstall even makes a cameo to talk about the new panoramic feature in iOS 6:

Screen Shot 2012 09 13 at 9.52.14 AM 520x213 Watch Jony Ive and Bob Mansfield explain the iPhone 5s industrial design and hardware engineering

And then there’s the way that they chamfer, diamond polish and texture the edge bits:

Screen Shot 2012 09 13 at 9.53.08 AM 520x232 Watch Jony Ive and Bob Mansfield explain the iPhone 5s industrial design and hardware engineering

And then there are these glass inlays for the back of the phone, which are compared using a 28MP camera to find the perfect fit for each metal chassis:

Screen Shot 2012 09 13 at 9.56.35 AM 520x243 Watch Jony Ive and Bob Mansfield explain the iPhone 5s industrial design and hardware engineering

The iPhone 5 had been dubbed disappointing and the best iPhone yet all within hours of its announcement. Whatever your opinion, though, it’s an impressive bit of design and engineering.

As a bonus, here’s how Apple designed their new EarPods: