Gadgets are electronic devices or tools with practical use but thought of as a discovery. They are small in size and used by humans for various propose. We can see gadgets in the kitchen, bedroom up to the bathroom makes task work easy.
The top 5 gadgets which are famous in 2021 are:
•    Smartphone
 
The Smartphone has been a basic need for human survival. A mobile this day is far more than a tool for communication. Mobile has been a tool for every content. We can see the camera, high processer for multi-tasking, audio recorder, and many more. 
There are 4.8 billion mobile users worldwide, 3.5 billion use a smartphone- data from Statista,2019. Nearly 73 % of them are users of smartphones.
Fascinating Facts:
•    47% of US smartphone users say they can't live without their devices.
•    The average time spent on smartphones is 171 minutes per day.
•    Worldwide, people own more smartphones than a toothbrush.

•    Laptop
 
A laptop is a small, portable personal computer that can perform a test as the desktop computer does. An LCD or LED screen mounted on the upper panel of the clamshell with an alphanumerical keyboard on the lower panel the structure of the laptop. We can use a laptop as a portable device that performs better than mobile phones. To carry a desktop computer is problematic. Laptop invention overcomes the problem caused by desktop computers. 
The battery backup with the portable facility is the best part of laptops. In 2019, there were over 2 billion computers. In 2020, 218 million laptops shipped, nearly 160 units sold in the same year, and an expected 217 million units will be selling.
•    Smart Watch
 
A smartwatch is a portable watch with multiple functions. Watch has become more than something to tell time. Now it can interact with the connectivity with the system.
Smartwatches can connect to the Smartphone and use in multiple tasks. Smartwatch is with you on your wrist and can check heartbeat, GPS navigation, message notification, etc.
•    Tablets
 
Much like smartphones with features computer. Tablets are devices that many people use every day as smartphones and computers. They have numbers of app that make day-to-day tasks much ease. Tablets use to play games, manage schedules, entertain, and much more.
•    Gaming Consoles
 
Gaming consoles are dedicated electronic devices which used for gaming propose. It provides some of the most enjoyable content that humans need for entertainment. Many people use gaming as a way of stress relief. The gaming consoles can provide a realistic experience by using virtual reality devices. Virtual Reality (VR) box contains headset and eye-tracking sensor which provide feel in a virtual world.

In conclusion, the needs of gadgets may be different for a person. New devices are creating for human use. In the future, we will see many things in the market.