Calypso The Calypso K8500/3, also known as the Calypso SmarTime K8500 Orange, is a unisex smartwatch that combines fitness tracking with essential smartwatch functionalities. Key Features: Health Monitoring: Heart Rate Monitoring Heart Rate Variability (HRV) Blood Pressure Measurement Respiratory Guidance Activity Tracking: Step Counter Calories Burned Calculation Sleep Monitoring Multiple Sports Modes: Walking, running, cycling, hiking, football, basketball Smart Features: Alarm Reminders Ultraviolet Light Detection Various Watch Faces Available via App;Calypso