Force Touch technology is already used in Apple Watch.
Apple has started initial production of its new iPhone, which will integrate Force Touch technology.
Citing people familiar with the matter, Bloomberg reported that the new phones will have the same 4.7-inch and 5.5-inch screen and exterior design as the iPhone 6 and iPhone 6 Plus.
After the initial run, mass production of the devices is expected to start as early as next month.
Force Touch, which is already used in the Apple Watch and new MacBook Pros, senses the level of force applied on a touchpad or similar display surface, and responds as per the requirements.
The feature is reported to allow Apple stay ahead of its competitors like Samsung Electronics. Earlier this year, the South Korean firm released its new Galaxy smartphone with a screen allowing users to view it from the side.
The sales of iPhone units increased 40% in March to 61.2 million. Apple, with its advanced big screen iPhone 6 and 6 Plus, pushed Samsung from its top position as the top smartphone maker in the world.