@marmistrz
I tell you this with all honesty, Tablets are consumption devices, not production devices.

Such as the purpose of a tablet is for mobile gaming and media. Or just lounging at home, curling up with it.

The only time a Tablet is ideal for production is if you have an iPad and a dedicated App for your service like in these circumstances:
- Like for a financial broker on his feet to and fro clients (a la coffee meetings).
- Doctors handling multiple patients in a hospital.
- An ordering/menu system in a fast food restaurant.

For university, you'll need to rely heavily on a good keyboard and trackpad. A pen feature is beneficial (mostly for equations, not much, but also for quick note taking). A touchscreen could be beneficial.

So to cover all your bases I recommend you:
1- Get a large smartphone (OnePlus One 64GB)
2- Get a small laptop (MacBook Air 11"/13" or Yoga or S7)
3- Use a notepad and pen, for efficiency, and to improve your pen skills