Several new iPhones, new Apple Watches and services pricing details are expected at Apple's (AAPL - Get Report) September 10 event.

Apple's event will take place at 1 P.M. Eastern Time at the Steve Jobs Theater, which is located at the company's Cuptertino, CA headquarters. Here's a look at what's expected to be announced.

Three New iPhones

As was the case last year, Apple is expected to launch 6.5-inch and 5.8-inch flagship iPhones sporting OLED displays, along with a 6.1-inch iPhone sporting an LCD display (next year, Apple is expected to launch an all-OLED iPhone lineup). The flagship iPhones will reportedly receive "Pro" labels.

Along with the usual processor upgrade -- all three iPhones should have an A13 system-on-chip (SoC) made using Taiwan Semiconductor's (TSM - Get Report) advanced 7-nanometer-plus manufacturing process -- the new iPhones will reportedly feature camera hardware upgrades. Whereas the iPhone XS and XS Max contain dual rear cameras, the Pro iPhones will reportedly contain a third rear camera that enables ultra-wide-angle shots. And whereas the iPhone XR has a single rear camera, its successor will have two.

In addition, Bloomberg has reported that the Pro iPhones will have the ability to simultaneously take shots with all three cameras, and to use new AI/machine learning software for photo corrections. The iPhones will also reportedly contain a feature "that [allows] users to retouch, apply effects, alter colors, reframe and crop video as it is being recorded live on the device."

Other expected improvements include a better Face ID system, enhanced water-resistance and the ability to wirelessly charge AirPods by placing them on an iPhone's back. And the iPhone XR's successor might be available in green and lavender trims.

Judging by history, pre-orders for the new iPhones should start on Sep. 13th, with the devices reaching consumers' hands on Sep. 20th.

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A New Apple Watch

For now, details are limited about what new features and hardware improvements the Apple Watch Series 5 will deliver relative to the well-received Series 4, which launched a year ago. However, 9to5 Mac did report earlier this week that Apple's next-gen Watches will be the first to support sleep-tracking. And (since many Watch users recharge their devices overnight) this in turn has fueled speculation that the Watch's battery life will be improved.

Fifth-gen Watches should be powered by a new chip module (possibly called the S5). It also appears that titanium and ceramic cases will be available.

Launch Dates for New OS Releases

Official release dates -- likely falling somewhere in September -- for iOS 13, watchOS 6, tvOS 13, macOS Catalina and the version of iOS powering iPads (now known as iPadOS) should be provided at Apple's event. Each operating system was detailed during Apple's June 4th WWDC conference keynote.

Among other things, iOS 13 is promised to deliver faster app launches, faster Face ID unlocking and smaller app download and update sizes. iPadOS comes with a slew of new features for multitaskers and creative professionals, and watchOS 6 packs new heath features, a Watch App Store and the ability to run Watch apps without a companion iPhone app.

Apple TV+ and Arcade Pricing

Apple is expected to disclose how much it will charge for its TV+ streaming service and its Arcade game-subscription service, both of which were unveiled during the company's March services event and have been promised to launch this fall. In August, Apple was reported to be planning to charge $4.99 per month for Arcade, and to be mulling a $9.99 per month price for TV+.

In addition, given how many different subscription services Apple is set to offer going forward, there has been speculation that Apple will in time roll out services subscription bundles, or perhaps even bundle subscriptions with hardware upgrades.