Liam McCroary racing HYROX with the Performr band on his arm
Liam McCroaryHYROX Pro Doubles World Champion 24/25

Your chemistry, live.

Lactate, glucose, hydration and antioxidant status from a band on your arm — read every second while you train, so you know when to push, fuel, drink and stop.

Live00:42:16
  • Lactate3.8mmol/L
  • Glucose5.1mmol/L
  • Hydration−1.2%
  • Heart rate164bpm

Take it for a run.

The four launch molecules over a ninety-minute run — and what the band tells you to do about them. Drag the timeline.

0:0030:0060:0090:00

Illustrative session: a simulated 90-minute run, not a real athlete’s readings.

Load it with what matters to you.

Four slots on one band. Pick a goal and it fills itself, or add molecules one at a time. What you load decides what it can tell you.

Yellow modules ship at launch; grey ones are on the roadmap. Insights are illustrative, not clinical claims.