Don't Wait If You Own or Plan to Buy a Bigger iPhone
The iPad mini 5 utilizes a 7.9-inch screen, same as previous models, and Kuo claims the iPad mini 6 will also come with a 7.9-inch display.
This isn't surprising because if Apple went any bigger, it would likely cannibalize the 9.7-inch iPad it sells. Go any smaller and the iPad mini starts creeping into iPhone 11 Pro Max/iPhone XS Max territory.
We've been using the iPhone 11 Pro Max and iPhone XS Max since their respective launches and we don't see any reason why we'd want to pair them with an iPad Mini.
The 6.5-inch screen is perfect for playing games and doing work on the go which of course are two of the primary use cases of ultra-portable tablets like the iPad mini line.
And like the iPad mini line, they've got great battery life, easily enough short trip in the car or long distance air travel while in Airplane Mode.