A:Answer The differences between these models include the operating system, which is Android 7.1.1 (Nougat) for the Galaxy Note8, and Android 8.1 (Oreo) for the Galaxy Note9. The Galaxy Note8 also has a slightly higher resolution. The Galaxy Note9 is a slightly larger model. In addition the newer model has a faster CPU, more memory, better refresh rates and graphics chips, stereo speakers, as well as a Bluetooth supported stylus and supports faster networking speeds. The available color options are different between the models as well.