Apple will unveil the next iPhones in a Sept. 12 event, and images of two of the new devices have already appeared online.

The event will be held in Cupertino, California, at the Steve Jobs Theater on the company's Apple Park campus, according Apple's website. "Gather Round," the invite said, likely referring to the shape of the company's new campus.

According to reports, Apple is planning three new models that look like the iPhone X, including a refresh to the flagship device, a larger premium model, and a larger, cheaper model that comes in different colors. All three devices are said to have facial recognition and edge-to-edge screens like the iPhone X, but the two premium models will have OLED screens, while the cheaper phone will use LCD technology.

On Thursday, website 9to5Mac published photos of two new iPhones and a new Apple Watch. The new high-end devices would come in two sizes, feature a gold color option and use the name iPhone Xs. The image of the Watch shows a new face that displays more information and a bigger display.

The website said the photos were spotted "on a hidden portion of Apple's website" and are actual photos of the products to be announced in September.

The iPhone accounts for about two-thirds of Apple's revenue, and serves as a hub for Apple Watches, AirPods, and services like the App Store and Apple Music, which generate most of Apple's other sales.

Beyond the iPhones, Apple is also planning new Macs, Apple Watches, and iPad Pros for debut this year. The new Apple Watch models are expected to have larger screens that cover nearly the entire front of the watch.

Apple is also working on two new iPad Pro models with slimmer bezels and facial recognition along with a new low-cost MacBook laptop and a Mac mini desktop geared toward professionals.