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Smartphones a wonder of modern technology. They have many features that we on every day. They also have many hidden functions that we are unaware of. One such secret on the new Apple iPhone 14 Pro. This the ability to measure someone's height. You just your phone camera at a person, click on the Measure app, and an instant measurement of how tall that person is. The person whose height you are must be standing in front of the camera from head to toe. It is possible to your own height in a mirror, but this is not so accurate. It would be better for a friend to it for you. The new Measure app could arguments about who is the tallest.

The Measure app AR (augmented reality) and a special sensor that is inside the camera. The technology behind the sensor is LiDAR. This is an acronym for "light imaging, detection, and ranging". LiDAR is also called 3D laser scanning. It is to make digital 3D models of areas of the Earth's surface and of the bottom of the ocean. LiDAR a person's height by sending out pulses of light. These light pulses off the person measured and return to the LiDAR sensor. The app how long this took. The length of time the app to the person's height. The website bgr.com joked that the app, "isn't as cool as drawing lines on a door" to someone's height.