Smartwatches pulse light through thick wrist bone and tendon. Fingers feature superficial digital arteries, resulting in a 10x clearer PPG optical signal.
Dual green and red optical LEDs emit light frequencies into finger capillary beds to accurately capture continuous Heart Rate Variability (HRV) and rMSSD strain scores.
Continuous 10-minute skin temperature differential updates help detect early physiological strain, immune recovery, and circadian cycle shifts.
Outer unibody titanium shield with biocompatible hypo-allergenic inner resin skin ensures 24/7 comfort and IP68 100m water resistance.