【my（favorite及invention英语作文）】Among all the inventions in the world, my favorite one is the smartphone. It has become an essential part of our daily life, and I can't imagine living without it.

The smartphone is not just a phone anymore. It combines the functions of a camera, a computer, a music player, and even a navigation system. With just one device, we can send messages, make calls, watch videos, take photos, and access the internet anytime and anywhere. This makes our lives much more convenient.

What I like most about the smartphone is its ability to connect people. No matter where you are, you can always stay in touch with your family and friends. It also helps me with my studies. I use apps to learn new languages, read books, and even practice math problems. It's like having a teacher in my pocket.

However, I also know that using a smartphone too much can be harmful. It may affect our eyesight and reduce face-to-face communication. That's why I try to use it wisely and balance it with other activities.

In conclusion, the smartphone is my favorite invention because it brings so many benefits to our lives. It has changed the way we communicate, work, and learn. I believe it will continue to improve and make our lives even better in the future.