Every wearable metric, one normalised schema

Sleep

7/12 providers connectable · 4 events

Sleep stages, duration, efficiency and timing, normalised across every ring, watch and mattress sensor.

Unit: seconds for durations, ISO-8601 timestamps for boundaries

Heart Rate Variability

6/9 providers connectable · 3 events

RMSSD and SDNN heart-rate variability from rings, straps and watches — as separate, clearly-labelled streams.

Unit: milliseconds

Heart Rate

8/12 providers connectable · 6 events

Continuous, resting and workout heart rate from every major wearable, in one schema and one unit.

Unit: beats per minute

Workouts

7/10 providers connectable · 12 events

614 provider sport names collapsed into 90 unified workout types, with per-workout metrics and streams.

Unit: SI — metres, seconds, watts, metres per second

Steps & Daily Activity

6/8 providers connectable · 8 events

Step counts, distance, floors and active minutes — deduplicated across phone and watch.

Unit: count for steps, metres for distance, seconds for time buckets

Calories & Energy

7/8 providers connectable · 5 events

Active and basal energy expenditure, normalised to kilocalories and fusible with nutrition intake.

Unit: kilocalories

Recovery & Readiness

2/4 providers connectable · 3 events

Provider readiness and recovery scores, delivered with their inputs so you can build your own.

Unit: provider-defined score, plus normalised inputs in their own units

Blood Glucose & CGM

2/4 providers connectable · 3 events

Continuous glucose monitoring streams normalised to a single unit, with insulin delivery alongside.

Unit: mg/dL canonical, mmol/L conversion preserved

Blood Pressure

4/4 providers connectable · 3 events

Systolic and diastolic readings from connected cuffs, with the measurement context that makes them interpretable.

Unit: millimetres of mercury (mmHg)

Body Composition

5/6 providers connectable · 9 events

Weight, BMI, body fat, lean mass and skeletal muscle mass from connected scales and platforms.

Unit: kilograms, metres, percentage

Body & Skin Temperature

4/6 providers connectable · 6 events

Absolute and deviation-based temperature streams — kept separate, because they are not the same signal.

Unit: degrees Celsius; deviations in degrees relative to a personal baseline

Respiratory Rate & SpO2

6/8 providers connectable · 6 events

Breathing rate, oxygen saturation and breathing-disturbance streams from rings and watches.

Unit: breaths per minute; SpO2 as a percentage

Nutrition & Energy Balance

3/3 providers connectable · 1 event

Photo-based meal recognition with per-dish macros, fused with wearable burn into daily energy balance.

Unit: grams for macros, kilocalories for energy

Stress

2/3 providers connectable · 3 events

Vendor stress scores and the electrodermal and HRV-derived signals underneath them.

Unit: provider-defined score; EDA in microsiemens

VO2 Max & Fitness Metrics

3/6 providers connectable · 5 events

Cardiorespiratory fitness estimates, fitness age and walk-test distance across platforms.

Unit: ml/kg/min for VO2 max; years for age estimates; metres for walk test