Apple product launches wouldn't be the same if they hadn't first been torn apart and analysed by the iFixit team. The iPhone 6S, available today, is no expectation as the focus of the team's latest teardown.

The most major discovery, once inside the handset, is the battery size. Despite being a heavier phone than the previous generation, Apple has actually used a smaller battery.

The iPhone 6S was also found to feature Ion-X Glass, the same stuff found in some of the Apple Watch models. Likely because this works with the new 3D Touch pressure sensitive screen.

Finally there was also a camera reveal that involved pixels. Not the 12-megapixel iSight camera number we know but the fact those pixels are 1.22µ in size. An increase of 50 per cent more focus pixels should mean faster, more accurate autofocus with a drop in quality. There is also use of deep trench isolation to compensate for leakage between the more densely packed pixels.

All that extra weight comes from the new 3D Touch display which alone weighs a hefty 60g, 15g more than the iPhone 6 offering. To even out this weight jump the battery has shrunk from 1,810mAh down to 1,715mAh. While this is a bit smaller, the new A9 chip and 2GB of RAM setup is obviously more efficient as Apple still assures users it'll kick out 14 hours of 3G talk time and 10 days of standby.

READ: iPhone 6S vs iPhone 6S Plus: Which iPhone should you choose?