Apple also unveiled a new, bigger Series 4 Watch, that is created to detect heart problems and call carers or doctors when its wearer falls.
To balance the record-breaking price of the new iPhone XS models, Apple will also launch a new cheaper smartphone, called the iPhone XR, though even it will cost a minimum of $1229 and up to $1479 for the 256GB model.
The latest iPhone models are just getting more expensive.
The XS and XS Max are 5.8 inches and 6.5 inches respectively, with users able to choose between the gold, silver, and space grey colours.
If the speculation pans out, the even-bigger iPhone would represent Apple's attempt to feed consumers' appetite for increasingly bigger screens as they rely on smartphones to watch and record video, as well as take photos wherever they are.
Apple on Wednesday unveiled updated versions of its priciest iPhones along with a new smartwatch that allows users to take their own electrocardiograms, as the USA tech giant looks to boost its momentum in a sputtering market.
Along with the Xs and Xs Max, it boasts the "hardest glass" ever seen on a smartphone.
Both come with a dual camera behind them - 12 megapixel and telephoto lens - and a 7-megapixel camera in front.
And, Schiller said, the XS line-up features 'the most handsome iPhone we've ever made'.
iPhone has brough advancement in its camera setup by introducing the innovative depth segmentation via the neural engine, smart HDR capturing images with great detail, range and bokeh quality in the portrait mode images.
The iPhone XS and larger XS Max are Apple's latest flagship devices.
A12 Bionic, it is claimed, is 15% faster than A11 processor, 50% more efficient, and provides a 50% boost to graphics performance.
A Liquid Retina Display is a type of LCD display, now only found in the iPhone XR. Unlike the other two models, this phone comes in a variety of different colours - blue, white, black, yellow, coral and red. The fall detection feature is also something that will appeal to those with elderly parents.
The camera on the iPhone XR has had one hell of a shakeup; there's a single camera system, which the company assures is the "best ever". The Max model looks to be about the size of the iPhone 8 Plus, though the screen size is much larger.
The Series 4 features the largest display compared to any Apple Watch. While we didn't get to spend much time with the Apple Watch 4, it certainly is an improvement on the previous generation in terms of app support and other features.
The iPhone XS Max, which will be available on September 21 - with orders open the week before - represents Apple's attempt to feed consumers' appetite for increasingly larger screens as they rely on smartphones to watch and record video and to take photos wherever they are.