As the new iPhone 6S and 6S Plus hit the US market on Friday, they recorded phenomenal sales. The new models boast of improved camera and on-screen features. Most users flocked to buy the new rose colored iPhone, kicking off a high sales volume for the pink model, said Gadgets 360.

Peek Zoom is the new 3D Touch feature in iPhone 6S and 6S Plus. Most users introduced to the brand new iPhone were not able to find the feature in Accessibility section in the settings app. However, they were able to find zoom on/off, sensitivity adjustment and testing features. The Peek Zoom or 3D Touch feature is disabled by default in the newly launched iPhone 6S and iPhone 6S Plus, reported 9to5mac.com.

In order to activate the tool, users need to go to Settings > Accessibility > Zoom and turn on the Zoom feature by double tapping three fingers to activate or deactivate the function. Turn on Show Controller and press hard on Zoom Controller which will zoom in the entire screen and when the same zooms out again release the pressure. A setting called Zoom Region can restrict the zoomed-in area to a small, movable window as required by the user, revealed 9to5mac.com. This feature comes as a blessing in disguise for those with reduced vision.

The tear-down of the new model also revealed a whopping 2GB RAM which is twice as much as iPhone 6. iPhone has increased its memory for the first time since it launched iPhone 5,revealed iFixit Teardown.

Apple's Chief Tim Cook made a surprise visit to one of the Apple stores in Georgetown, Washington. Most market gurus expect at least 12-13 million handsets to be picked from the shelves in the first weekend itself. This will be a higher figure than last year when 10 million phones were sold on the launch of iPhone 6 and 6 Plus. Pre-order sales order assured the company to beat its last year's record for the first weekend. It is expected to announce the final sales figure on Monday.