Your next iPhone might be a bit more sensitive.

According to Bloomberg, production has started on a next-gen iPhone that includes Force Touch, a pressure-sensitive technology that is featured on the new MacBook (pictured) and Apple Watch .

The new iPhones won't change much on the outside, Bloomberg said, which isn't a huge surprise, since they only just got a major upgrade last year. But the addition of a Force Touch display will let users call up different features depending on how hard they press on the screen.

Rumors of a Force Touch display on the new iPhone emerged last month in a report from 9to5Mac. The blog said iOS 9 will be "Force Touch-ready," meaning developers can create apps that will take advantage of the technology on iPhone 6s, particularly on services like maps, media players, and calendars.

As PCMag explains in the video below, Force Touch adds pressure sensitivity and haptic feedback to devices, which helped eliminate the physical springs in the MacBook trackpad to keep that laptop thinner, for example. On Apple Watch, haptic (or "taptic") feedback is used for alerts and other customizable features.

Bloomberg suggested Apple was adopting the technology to keep pace with rivals like Samsung, which added a sloping display on its Galaxy S6 Edge smartphone.

If Apple keeps to its usual release schedule, we'll likely hear more about its newest smartphones in September.