Garmin CIRQATM Smart Band
Design & Display: Screen-free, minimalist form factor weighing about 20 grams, similar in size to a Whoop band, with a single physical side button and a comfortable fabric strap. [1, 2, 3]
Sizes & Colors: Available in S–M (120–200 mm wrist circumference) and L–XL (145–240 mm wrist circumference) in multiple color options. [1, 2]
Battery Life: Up to 10 days of continuous use on a single charge (or about 5.5 days if Pulse Ox is enabled for sleep tracking). [1]
Sensors: Gen 4 optical heart rate sensor, Pulse Ox (blood oxygen), skin temperature tracking, HRV (heart rate variability), and an accelerometer. [1, 2]
Health & Fitness Metrics: Tracks sleep scores, Body BatteryTM energy monitoring, Training Readiness, VO2 max, respiration rate, and stress via the free Garmin Connect app. [1, 2, 3]
Activity Tracking: