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Take a look at 3D Touch on Apple's new iPhones

3D Touch is a new feature found on the iPhone 6S and 6S Plus that relies on pressure as another way to interact with the screen. Here's a look at how it works.

Now Playing: Watch this: What is 3D Touch?
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Apple on Wednesday unveiled 3D Touch, a new feature designed to change how you interact with your smartphone screen.

Like Force Touch before it, 3D Touch relies on pressure as a way to interact with your device -- in this case, the iPhone 6S and 6S Plus.

Underneath the display, capacitive sensors are able to pick up changes between the cover glass and the backlight. These pressure changes are caused by a finger pressing the screen at different intensities and forms the basis of how 3D Touch works.

Now Playing: Watch this: New iPhones get 3D Touch, a new way to navigate
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Instead of relying solely on traditional gestures like swiping and pinching, 3D Touch allows you to now use a light or heavy finger press to bring up certain actions like previewing content (Apple calls this a "peek") or viewing content completely (this is a "pop").

Press play on the video above for a look at what 3D Touch is and how it can be used to interact with the iPhone 6S and 6S Plus.

See all of today's Apple news.