Not sure what you mean by qualities. The software running on both devices is identical. The main difference from my understanding is that the battery life is b

Not sure what you mean by qualities. The software running on both devices is identical. The main difference from my understanding is that the battery life is better on the RM2, and then pen has an eraser on the back. I've heard mixed results about writing quality, from my reading most people have said writing on the RM1 "feels" better.