<P> The iPhone 6S originally shipped with iOS 9; the operating system leverages the 3D Touch hardware to allow recognition of new gestures and commands, including "peeking" at content with a light touch and "popping" it into view by pressing harder, and accessing context menus with links to commonly used functions within apps with harder presses on home screen icons . The camera app's "Retina Flash" feature allows the display's brightness to be used as a makeshift flash on images taken with the front camera, while "Live Photos" captures a short video alongside each photo taken . </P> <P> The iPhone 6S supports iOS 12, which was first released on September 17, 2018 . </P> <P> Nilay Patel of The Verge described the 6S, in particular the Plus model, as "right now the best phone on the market...There just aren't other companies that can roll out a feature like 3D Touch and make it work in a way that suggests the creation of entirely new interface paradigms, and every other phone maker needs to figure out exactly why Apple's cameras are so consistent before they can really compete ." Samuel Gibbs of The Guardian commented that the phone "has the potential to be the best smaller smartphone on the market, but its short battery life is deeply frustrating" and described the camera as "not leagues ahead of the competition anymore". Tom Salinger of The Register praised performance, noting that "we're now using phones with the performance of current PCs", but described 3D Touch as "just a glorified vibrator" and "no good...you still don't know quite what's going to happen until you try it". Ryan Smith and Joshua Ho of AnandTech awarded the iPhone 6S and 6S Plus its Editors' Choice Gold Award, based largely on the phone's performance and the addition of 3D Touch . </P> <P> On the Monday following the iPhone 6S's launch weekend, Apple announced that they had sold 13 million models, a record - breaking number that exceeded the 10 million launch sales of the iPhone 6 in 2014 . In the months following the launch, Apple saw its first - ever quarterly year - over-year decline in iPhone sales, attributed to a saturated smartphone market in Apple's biggest sales countries and consumers in developing countries not buying iPhones . </P>

Iphone 6s price when it first came out