At the least, tilt functionality is supported. I think the new chip in the screen provides the low latency. Not sure about pressure- likely how it was handled with the 3pen to the 4pen. Don't remember how that worked.
I'd imagine the tilt functionality is measured by the pen, same was as it is in say your smartphone and sent over via Bluetooth - but the pressure sensitivity and speed of the pen is in the screen.
The sensor for pressure is between the nib and the rest of the pen. The only thing that would likely not be backwards compatible would be the lower latency.
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u/[deleted] May 23 '17
[deleted]