BEGIN:VCALENDAR VERSION:2.0 PRODID:-//BritCHI//Schedule//EN CALSCALE:GREGORIAN METHOD:PUBLISH X-WR-CALNAME:Constructing Metric Ecologies: How Fitness Tracker Users Disti nguish Personal Health and Well-Being Metrics BEGIN:VEVENT UID:paper-session-4-digital-health-care-and-wellbeing-constructing-metric-e cologies-how-fitness-tracker@britchi.uk DTSTAMP:20261014T154232Z DTSTART:20261103T110000Z DTEND:20261103T111000Z SUMMARY:Constructing Metric Ecologies: How Fitness Tracker Users Distinguis h Personal Health and Well-Being Metrics DESCRIPTION:BritCHI 2026 · Paper Session 4: Digital Health\, Care and Well being\nKersting\, Rey\, Vredenborg\, Bentvelzen\nFitness trackers increasi ngly promise insight into both health and well-being. However\, these cons tructs are hard to operationalise given they are not directly measurable v ia a single metric. Instead\, people must interpret combinations of metric s—or metric ecologies—to make sense of their health and well-being. Ye t\, little is known about what metrics form these ecologies in practice\, or how people distinguish health from well-being. To address this gap\, we conducted an exploratory study with Garmin fitness tracker users (n = 21) using gaze-cued retrospective think-aloud sessions. Our findings show tha t participants treated health and well-being as related but distinct refle ctive constructs. Health was commonly understood as bodily and measurable\ , making it easier to interpret through objective metrics. Well-being\, by contrast\, was understood as emotional and contextual. We contribute empi rical insights into how users define health and well-being and the relatio nship between these constructs\, the metrics included and excluded within ecologies\, and discuss opportunities for personal informatics systems to better support reflection of health and well-being. LOCATION:Brunel University London\, Kingston Lane\, Uxbridge UB8 3PH URL:https://www.britchi.uk/programme/schedule/paper-session-4-digital-healt h-care-and-wellbeing/ END:VEVENT END:VCALENDAR