The company's new flagship smartphone is expected to have a 5.4-inch screen and a possible larger iPhone 12 Max with a 6.1-inch screen. Rumours have it that these phones will come with dual rear cameras.
There will also be a more powerful iPhone 12 Pro with a 6.1-inch screen and a larger iPhone 12 Pro Max coming in with a 6.7-inch display. These phones are said to come with triple rear cameras, similar to last year's iPhone 11 Pro.
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Apple is expected to launch the cheapest iPhone 12, likely to be referred to as the "Mini" edition, at a price of either £649 or £699, according to analysts. This fits with the company's revised pricing strategy in recent years which has seen it back away from the £999 entry point for its flagship iPhone X released in 2017.
The company is expected to make several other announcements alongside the iPhones, including a mini version of its HomePod speaker.