Price: Preorder


A Fitness Tracker Like Never Before

Breath measurement is one of the most accurate yet underutilized ways to understand your unique body. Tracking real-time breath flow & composition, Calibre™ provides established & proven technology with medical-grade precision right in the palm of your hand.

Calorie Tracking

  • Calorimetry & Metabolic Reports & Charts


  • Live Tracking of calories,
  • breath and
  • dozens of biometrics, (customize your display)

Respiratory & Fitness

  • Detailed Respiratory Analysis
The SELF Institute