Once again, iFixit tears apart a perfectly good iDevice. Past that, look at what's new with the iPad mini 4:
- Lighter, slimmer, taller.
- Exterior design changes (speaker holes consolidated, RIP rotation lock)
- Faster with more memory
- Laminated display
- M8 motion co-processor
- 8MP iSight camera
- LTE Advanced
- Bluetooth 4.2
- Single cell, lower capacity battery (though theoretically the same battery life as the iPad mini 3)
All in all the exact device I need to read comic books with better than I've read them before. And some other things too.