Why does my Fitbit charge five show such a massive step count discrepancy compared to my chest strap HRM during zone two runs?
Download run
Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
Why does my Fitbit charge five show such a massive step count discrepancy compared to my chest strap HRM during zone two runs?
1 real search · 1 real-search pass
Fitbit Charge 5 step counting accuracy running wrist accelerometer arm movement cadence chest strap heart rate monitor step countGoogle ↗
OBSERVEDReason
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
ChatGPT real searches (1)
Classes come from the query-classifier (a local Laya model). 1 of 1 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.
Searches and sources
ChatGPT1 real searches · gpt-6
Fitbit Charge 5 step counting accuracy running wrist accelerometer arm movement cadence chest strap heart rate monitor step count Google ↗
- How does my Fitbit device calculate my daily activity? · support.google.com
- How accurate are Fitbit devices? · support.google.com
- Comparison of Wrist- and Hip-Worn Activity Monitors When Meeting Step Guidelines · cdc.gov
- Accuracy of Fitbit Devices: Systematic Review and Narrative Syntheses of Quantitative Data · pmc.ncbi.nlm.nih.gov