Apple shares were down 1.3 percent at $221.20 in early trading on the Nasdaq. Apple recently abandoned its habit of making its event livestreams viewable only on its own Safari browser, so you should be able to load that stream on alternatives like Google Chrome or Microsoft Edge.
Apple has sold more than a billion iPhones since the first model was unveiled by late co-founder Steve Jobs in 2007. Both the bold new color options and the potential "Xc" moniker echo Apple's lower-cost iPhone 5c handset from 2013.
As indicated, there might be the large iPhone XS Max and apart from the 6.5-inch display, Apple could try out a 3-camera setup and support for the Apple Pencil on this model.
Most of the buzz is swirling around a rumored iPhone with a screen that's bigger than the one on last year's dramatically designed model, the iPhone X.
Apple chief executive Tim Cook has touted fitness and health features of the company´s smartwatch, which dominates that market.
Apple wants users to upgrade to newer, more expensive devices as a way to boost revenue as global demand for smartphones levels off. And they suggest an Apple Watch Series 4 with a display 2 mm larger than current models. In addition to 64GB and 256GB models, Apple will also offer a 512GB model.
But with President Donald Trump pushing for more tariffs on Chinese goods, Apple faces legitimate questions about whether it will need to bump up prices for some of its products - and whether that could turn some consumers away.
Major changes to US trade policy is one of the few serious threats to Apple's business.