Longevity, explained honestly.

VO₂max is among the strongest predictors of how long you will live, which is exactly why the number deserves to be real. A wearable does not measure it. It infers it from your heart rate and your pace, using an algorithm built on a population, not on you.

That works well enough to show a direction. It works poorly for a precise figure: independent validation puts the individual error wide enough to exceed what counts as a clinically meaningful change, and the bias tends to flatter the unfit and underrate the very fit.

A measured VO₂max test reads the air you breathe under load. It gives you a true starting line, a true ceiling, and a number that means something when it moves.

Cardiovascular disease is the world's leading cause of death, and it is, at root, chemistry. The particles that lodge in your artery walls are counted by a blood marker called ApoB. No wearable can see it.

A single-lead watch ECG can suggest atrial fibrillation, which is genuinely valuable, but it cannot detect a heart attack and it cannot read a lipid. The same blind spot hides Lp(a), a largely genetic risk elevated in roughly one in five people and notably common in South Asians, along with hs-CRP and fasting insulin, the earliest whisper of metabolic trouble.

Odds measures 60+ biomarkers from an at-home draw, and a physician reads your ApoB beside your Lp(a) and your history, because the risk lives in the interpretation.

The age your ring displays is an honest little thing pretending to be a large one. It is derived from your heart rate and your activity, a vitality score, not a reading of how your body is actually ageing. We think the honest version is worth more, even when it is humbler.

AXION™ reads your metabolic age and MAQ™ your mechanical age, setting both against the candles on your cake, drawing on directly measured fitness, body composition and bloodwork rather than steps alone. We mark it plainly as a directional model, not a laboratory diagnosis, because even the best biological clocks are still maturing.

Re-measured every 45 days inside the QHP™ panel, what matters is not the single figure. It is which way it is travelling.