Chosen Solution
Is there any way to tell by visual inspection whether you have the 32GB vs 128GB model? I’ve got a surplus one of these without a screen, and am wondering if it’s worth ordering a replacement screen for it or not. I looked up the serial# at Apple Support, no luck there.
I think another way is to open it up and access to the NAND flash from there you can google the part no for the capacity https://pasha4ur.org.ua/articles/difdevi…
Jared Dunn it would not matter what capacity your iPad is since both have the same LCD and digitizer. So looks like current new replacement price for a 32GB is ~$280 USD and the 128GB ~$380 USD The digitizer and the LCD will cost you around ~$180 USD on iFixit but can be had for 1/2 that cost at other places (most likely lower quality and warranty). So, add that to the cost of your iPad and see if it works out economical. Once you have the display replaced, you can determine the storage etc. via the iOS software. Only other way is the one that @salmonjapan described, by identifying the NAND.
