Use your iPhone to settle the "who's taller" controversy
Many of us have been using iPhones from its inception, and we've been aware of their "hidden" or "secret" functions for years. But every now and again, I discover something new about iOS. This time, it's a function that allows you to measure someone instantaneously using only your iPhone's camera.
This function isn't new, but it's only available on a subset of iPhones, namely "Pro" versions. You have an immediate people-measuring tool in your pocket if you have an iPhone 12 Pro, 12 Pro Max, 13 Pro, 13 Pro Max, 14 Pro, or 14 Pro Max. You don't, even if you have the most latest iPhone 14 or 14 Plus. (It's odd that a brand-new iPhone lacks a function that the two-year-old iPhone 12 Pro has.)
How does LiDAR work on iPhones?
Even if Apple wanted to introduce this function to non-Pro iPhones, it probably couldn't since the measure feature is hardware-based, depending on the LiDAR sensor incorporated into the Pro iPhone cameras. If you have one, you've probably spotted this sensor as the apparently little dot on your iPhone's camera housing. This LiDAR sensor is a powerful augmented reality tool, allowing your iPhone to map its surroundings by sending out light pulses into the area. When the light pulses re-enter the room and strike the LiDAR sensor, your iPhone calculates how long the procedure took.
One use for such a sensor is the capacity to measure a person instantaneously, as long as the individual is standing in front of the camera from head to toe. However, this option is not available in the Camera app.
How to Use Your iPhone to Measure Someone
Open the Measure app on your iPhone and frame your buddy in the camera viewfinder, ensuring sure their complete body is visible. Measure will calculate their height after they are lined up, displaying a tally next to their head. Then, using Measure's shutter button, photograph your subject and their estimated height.
Before you ask, yes, the functionality can be made to operate in a mirror. However, because it requires you to stand so far back, the findings are inaccurate. "I'm 3'10" in a mirror" will make no sense to anyone.
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