With the rapid development of the internet, smartphones and tablets have greatly facilitated people's lives and improved the quality of life. Wearable devices themselves exploded when they first hit the market, and they are now slowly growing.

Medical Internet of Things namely through radio frequency identification, infrared sensors, global positioning systems, laser scanners, gas sensors and other information sensing equipment.

Foldable phones are gaining much attention in the market recently. Just in this year, new patents on foldable phones have come out from Xiaomi and Samsung. Samsung released the Galaxy Fold and Galaxy Z Flip, two different shapes of foldable screen smartphones, each with a dual battery.