S400 = Xiaomi S400 scale · W4 = Galaxy Watch4 · W8C = Galaxy Watch8 Classic
Body composition
Two bioimpedance estimates of the same body, drawn side by side and never merged.
Sleep
Every night the watch recorded, keyed by the morning I woke up.
Activity & training
Steps, calories and workouts from the watch and the phone.
More activity
Heart, oxygen & temperature during sleep
What the wrist sensors read while I slept.
Fitness
The watch’s cardio-fitness estimate over the whole history.
Other
Stress, watch wear, blood pressure and every other series in the export.
Biomarker panel
One row per biomarker, with the value from each device that measures it.
Watch: daily metrics are the 7-day mean ending at the as-of date; sparse ones (bioimpedance, VO2max) the last value on or before it; weekly counts the 7-day sum.
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All Records
Data explorer & measurement notes
The raw tables behind the charts, and what in this data is a measurement and what is a recording artifact.
Quarterly table
Quarterly means, restricted to the selected range. Click a heading to sort; type in the row below it to filter (>60, <50, 60-80 or plain text all work).
Daily table
One row per day from 2022-01-01, or one row per month when the range reaches further back. The device column names what recorded that day; a trailing + means more than one device contributed.
Exercise sessions by type
Blood pressure, alerts and weight
Blood pressure readings
High heart-rate alerts
Profile weight and watch body fat (Samsung table)
In this table the watch contributes only the body-fat value; the weight in each row is my Samsung profile weight (typed in or synced from a scale), not a watch measurement. The chip names the device the body fat came from: a watch measured it, a phone row was typed in or synced.
Metrics, units and source tables
Artifacts and data quality
What in this data is a measurement and what is a recording artifact. Read these before drawing a conclusion from any chart above.