In 1973, a telecommunications engineer from Chicago made the first mobile phone call in public while standing on a street in Manhattan. This event was a very important moment in communication history. The engineer worked for Motorola and used a heavy phone that weighed about four pounds. This phone later became the first mobile phone sold to people. Since that day, mobile phones have changed a lot. Today, over 4.6 billion people use smartphones around the world. Phones are now used for calls, texting, internet access, and even entertainment. In 2023, a mobile network group reported that about 60% of people around the world had mobile internet. In many places, phones are not only tools—they are a symbol of staying connected.

Today’s mobile phones are becoming more advanced. The engineer who made the first call said phones in the future may check health and use body energy instead of batteries. Some experts believe this can make big changes in medicine. But there are also problems. Many teachers and psychologists say too much screen time can affect learning and social life, especially for children. In the U.S., seven states have already started school phone bans. Twenty more states are talking about similar rules. Some believe mobile phones can also contribute to learning by helping students explain their ideas. Still, the mobile phone is seen as a formidable invention. It has fundamentally changed the way people live. Its full power may still be unknown or unrealized.