The PD-BioStampRC21 dataset provides data from a wearable sensor accelerometry study conducted for studying activity, gait, tremor, and other motor symptoms in individuals with Parkinson's disease (PD). In addition to individuals with PD, the dataset also includes data for controls that also went through the same study protocol as the PD participants. Data were acquired using lightweight MC 10 BioStamp RC sensors (MC 10 Inc, Lexington, MA), five of which were attached to each participant for gathering data over a roughly two day interval.