Hi! You might be better off posting your question in the 'products' section of this forum. That is way more active. - https://forum.dji.com/forum-129-1.html
Hello there. Good day and thank you for the inquiry. I hope that our fellow DJI Co pilots who uses the iPad Air 2 16GB when operating there DJI Mini 2 can give out the best recommendation with regards to this inquiry. Just a reminder that DJI recommends using a recommended mobile device on the DJI Fly application and when operating your DJI Drones for compatibility and reliability purposes. Thank you and have a nice day.