How to measure a person’s height with iPhone
iPhones and deliver a LiDAR scanner. In a nutshell, this sensor emits infrared waves that accurately detect and measure the distance of objects in an environment, something very useful in augmented reality apps. Thanks to this technology, models can also in a few seconds. Below, I’ll show you how to do that.
The process for measuring anyone’s height is quite simple. That’s because the iPhone 12 Pro (or 12 Pro Max) will do all the work automatically in a matter of seconds. With your model in hand, follow the instructions below:

The app even allows you to take a picture of the measurement by tapping on the white “ball”. To save the captured image, tap the thumbnail in the lower left corner and then “OK.” Once that’s done, choose “Save to Photos” or “Save to Files.”
If you want to take another measurement, just flip your iPhone for a moment to reset the height.
At the moment, only the iPhone 12 Pro and 12 Pro Max can measure a person’s height. Still, previous models can use the same app to get a point of the length and height of any object.
First of all, it is worth mentioning that the “Measure” only works on the following devices:
That said, here’s how to measure the height or length of an object:
After you complete the measurement, you can adjust it by dragging the points. To save a captured photo, repeat the process shown in the latest templates.
Ready, now you already know how to measure a person’s height with the iPhone 12 Pro and 12 Pro Max. If you have a different device, the “Measure” app can help a lot in other situations.
Source: Apple.