Can a phone measure distance like a ruler - Android

The smartphone. Such a powerful device. It’s the predator of the technology world. The T-Rex of the cyber jungle. Many of you may not remember, but smartphones devoured gadgets like portable music players, calculators, point-and-shoot cameras, radios, tape recorders, the list just goes on and on.

But can a smartphone replace more conventional tools like a tape measure, for example? With all the wizardry happening behind smartphones’ camera systems, this task should be an easy one for our predators, right? Well, I decided to find out.