Samsung made a quantum 5G phone. Here's what you need to know - Android

Quantum computers are still a rarity and a costly one, too. They use a physics phenomenon that allows a particle to be in many states at the same time. Without delving into blackboard-long equations, quantum computers are able to generate truly random numbers, which in turn leads to almost unbreakable security keys.

Now Samsung and Korean have developed a quantum random number generator and put it into a smartphone. The phone is called Samsung Galaxy A Quantum, but it's just a rebranded Galaxy A71 5G, with the quantum chip added, of course.