• Tracks activity, sleep, heart rate, and stress levels continuously. • Built-in GPS for accurate pace and distance tracking during outdoor workouts. • Bright AMOLED display for easy viewing in sunlight. • Water-resistant design suitable for swimming and showering. • Battery lasts up to 7 days on a single charge. • Syncs wirelessly to smartphones for detailed stats and notifications. • Monitors blood oxygen saturation (SpO2) levels. • Includes NFC for contactless payments (Fitbit Pay).