Apple has unveiled a larger iPad, new TV service and the latest iPhone handsets at its headline event in California.

With sales of earlier models declining in recent years, Apple has opted for a larger tablet with the iPad Pro. The tech giant says it will be best suited to business, gaming and video editing uses.

With a 12.9" screen, the iPad Pro's shortest edge is as long as the height of the iPad Air 2. Many have attributed the smaller tablets to the falling iPad sales in recent years, especially as the iPhone handsets have grown in size.

Apple also unveiled an attachable keyboard ($169), which makes it look strikingly similar to Microsoft's Surface tablets. Apple fans will also be able to purchase a stylus, called the 'Apple Pencil' ($99), which is designed to mimic using a real-life pencil and paper. Some may recall Steve Jobs saying in 2010: "If you see a stylus, they blew it."

The iPad Pro's battery is likely to last around 10 hours, Apple said.

In terms of price, you're looking at anything between £520 and £702, depending on storage and 4G capabilities.

iPhone

As is customary with Apple around the beginning of autumn, it unveiled the 'S' versions of the current handsets - the iPhone 6S and iPhone 6S Plus.

Apple's main announcement on the iPhone was the introduction of 3D touch technology. It means that sensors will be able to detect three different levels of touch to complete separate actions. For instance, Apple said pressing the screen more firmly could preview an email or an image, swap a weapon in a game or switch to the front-facing camera for a selfie.

The iPhones, which are due to go on sale in two weeks' time, will also be able to record videos in 4K definition. And the back-facing camera has been upgraded from 8 megapixels to 12.

Apple TV

Taking centre stage for the event, chief executive Tim Cook also revealed the new Apple TV set-top box service.

The service features its own app store and uses a touch-sensitive remote and microphone, so Siri makes an appearance on Apple TV as well. Again, going against what Apple has previously said, Mr Cook claimed "The future of TV is apps". In the past, Apple has described TV set-top boxes as a "hobby".

The Apple TV also allows users to play video games, using the touch-sensitive remote very much like the Nintendo Wii.

The set-top box will cost between $149 and $199 depending on storage.