I have had the iPad mini 4 for the last 3 or 4 years which have served me well, however noticed my eyes seem to strain badly whenever i read, watch my shows, or surf since November. Which contributed my using the ipad lot less and started to rely on my 21.5 older iMac, however it is in our home office which isn't always convievient. I also upgraded my glasses RX 3 weeks ago, thinking eye strain was from older prescription, but it's still the same despite my new stronger rx. Inicidentally whenever i watch my 60" tv or read my kindle, i noticed no eye strain. Perhaps time to upgrade to a bigger iPad. I can't decide which version of ipad to upgrade though! What are the main differences between the newer iPad 2017 and older ipad pro? i use my current iPad to read, answer emails, Facetime, Facebook, read my news, magazines, go on different forums and stream my shows via netflix and on demand from comcast. The price tag for ipad pro seems quite hefty and i want to have 128GB at MINIMUM.