I have a mini which is great with SD. But when I put it on the kneeboard I have nowhere to write.
I subsequently found out my 5S is excellent at rendering sd. I can strap it to the kneeboard to secure it, I have space to write . Fantastic
I now use my mini for watching films in the hotel.
Ideally I would use the mini if I could find a place in the cockpit to secure it.