Apple has a habit of throwing in a few surprises at its launch events so expect plenty of other shiny new gadgets to be unveiled including a new Apple Watch.
The phone is said to feature the same 5.8-inch display as the iPhone X but include more expensive and colorful OLED panels and L-shaped batteries to improve battery life.
The higher-end versions, which will apparently be called the iPhone XS and XS Max, are expected to come in space gray, silver, and gold, while the lower-cost iPhone XR is expected to come in six colors: black, white, red, yellow, coral, and blue.More news: Trump dismisses Woodward book as 'joke'
Apple may release three models of the iPhone, based on analyst reports, and all at pocket-stretching sizes.
But new iPhones aren't the only product observers will be looking to see. A recent post from Chinese microblogging site Weibo, via The Inquirer, further claims this to be the case with new images surfacing around the iPhone-X-lookalike.
Apple is likely to share more details on Wednesday at its annual event in California. The most-used iPhone right now is still the iPhone 7, according to research firm Mixpanel, and more people have the iPhone 6S than the iPhone X. Last year, Apple started selling the iPhone X in November, almost two months after its official launch. What's happening to Apple's cheaper, traditional phone models?
While it is the market leader, the Apple Watch still doesn't sell in high enough quantities for Apple to break out individual unit sales like it does for Macs, iPads, and iPhones. Apple's wireless AirPods are also due for an upgrade.