ATTESA E-TS only varies the torque split front to rear. It's sort of unique in that it goes from 100% of the torque being sent to the rear, with a maximum of only 50% sent to the front.

ATTESA E-TS PRO adds a rear limited slip differential, which I think *might* be electronically controlled but I'm not sure.

SH-AWD on the other hand, is able to constantly vary the torque split between all four wheels. It can't send all the power to the rears like Nissan's setup, but it continuously varies the front/rear split from 70/30 to 30/70 and anywhere in between. It also can vary the torque split at each axle from 0/100 to 100/0 (left/right), independent of the other axle. So you could have like, a 30/70 torque split front/rear, 100% of the front torque sent to the front right wheel, and 100% of the rear torque sent to the left rear wheel, or any other combination in between.