Stress is a multidimensional construct encompassing physiological responses such as changes in heart rate, heart rate variability, body temperature, and motion; and psychological experiences, including perceived tension and coping abilities. Physiological aspects of stress can be objectively quantified via wearable technology such as the Oura ring, which assesses several variables of bodily stress. Perceived stress, measured through self-reports such as the Perceived Stress Scale (PSS-10), is an individual's subjective appraisal of life as stressful, uncontrollable, or unpredictable. Although physiological and perceived stress significantly impact psychological health and well-being, their relationship and interaction warrant further exploration. Understanding how individuals interpret their physiological stress responses and evaluate their coping capacity helps inform interventions that address discrepancies between physiological stress indicators and subjective experiences. This study evaluated physiological stress and perceived stress to identify potential discrepancies and explore practice implications. Twenty graduate and 16 undergraduate students from two universities in the Unites States wore an Oura ring for 40 days to gather biometric data and to assess bidirectionality of participants' physiological and emotional arousal. Participants completed the PSS-10 through a smartphone application utilized for Ecological Momentary Assessment and Experience Sampling Methodology data collection. A linear mixed model analysis revealed the average time in physiological stress was significantly negatively correlated with perceived stress (r=-.28, p=.03), indicating that individuals with higher average stress exposure over 40 days reported lower perceived stress. Individual differences accounted for more variation in PSS-10 than within-person changes over time (r=-.28, p=.03); thus, individuals who typically experience more physiological stress report lower perceived stress. Findings reveal that physiological stress and psychological perceptions may be capturing different aspects of the stress experience. Future research should investigate a potential stress adaptation effect, such that chronically stressed individuals may develop coping mechanisms or adjust stress perception.