iPad can connect to certain LTE and 5G networks in the U.S., Canada, Japan, Germany, UK, Australia, Korea, Hong Kong, Singapore, and many more.

https://www.apple.com/ae/ipad/cellular/networks/

View all technical specifications for iPad Air.

https://www.apple.com/ae/ipad-air/specs/

View all technical specifications for iPad mini.

https://www.apple.com/ae/ipad-mini/specs/