BernieB Hi Bernie, i have the same issue, i want a new iPad but cant cant work out which damn model to go for thanks to apples stupid way of selling their products from the buyers perspective, they are actually very smart when it comes to confusing the shit out of the customers and grabbing their money.
Not only do they have
GENERATION , what the hell!
Storage capacity of around 2 to four capacities
Depending on the model and Generation.
New models every year that appear to be the same but different in some magical way.
NO WONDER WE ARE ALL CONFUSED!
Not to mention models with headphone jack and without, and different usb connectors that seem to do everything through them with squilion adapter's that cost a fortune , I FEEL YOUR PAIN.
So after pointing out the obvious,
You need to consider the most important.
The screen size you require, i prefer around the 10.5 inch on stage as its not too big to look ugly but not too small so you can stand a bit further from it.
Memory capacity, i would not buy a device less than 256 gb more the better, depends on you budget.
I would consider the last model of i pad air that has the headphone jack and the newest chip processor that has 256gb memory.
I hope i can find one soon as they are becoming hard to find in shops and all the new stuff does not have a headphone jack, which to me is the most important thing for on stage use.
I have bought a Logitech stereo bluetooth receiver and plugged it in to my mixer, with good results so far but it hasn't been thoroughly tested yet so that might have to become my standard way of hook up , it seems to sound great and is easy to hook up once setup, i know its another thing to power up and carry around but we have no other option apart for the ugly inconvenient Apple adapters.
This then might give me more choices of models to buy.
I know i have probably not helped with a clear model to buy but you know best what suits you, so i have pointed out things to consider
Oh another tip , sim card or not , i always bought the top models with sim card capability , well i wasted my money i never use it so unless you definitely need internet access at all times don't waste your money on the sim capability.