Vitality summarizes your available body signals. Activity shows actual steps or minutes, HRV is shown in milliseconds, and glucose retains its original units. These are observations, not accumulated points.
Calm, Clarity, Connection, Spark and custom tiles show your direct 1–10 self-ratings. Device signals provide context; they do not change your emotional self-rating. Body and activity self-ratings remain in your check-in history.
Daily summaries use the seven completed calendar days before today. Only observed days enter the average. Device inputs more than three days old and self-ratings more than seven days old are marked out of date. Historical inputs keep their dates. Missing days never become zero or a default 50.
Comparisons use at least ten distinct days in the ninety-day period before the summary window. Sources and estimators are kept separate. Above or below your usual pattern describes a comparison, not a health judgment.
Chapters organize stretches of your life and their history. Current measured comparisons use the rolling reference described above; starting a chapter does not reset or retrain that reference.
Time changes freshness and window coverage, without pulling a wellbeing score toward 50. Activity logs and engagement levels remain separate. Previous 0–100 score history is archived and is not mixed with current measurements.