Here's the main difference between Bipolar w/ psychotic features and bipolar schizoaffective disorder. In bipolar w/ psychotic features, your psychotic features (such as hallucinations, delusions, flat affect, etc.) only occur when you are in the midst of a manic or depressive episode. With bipolar schizoaffective disorder, your psychotic features can be present with or without an episode. As far as I know, you have to meet all the criteria for a diagnosis of schizophrenia. So essentially, bipolar schizoaffective is just a fancy way of saying you have both Bipolar disorder and schizophrenia. Hope this helps!