Cost to a university of collecting Fitbit data (plus a monthly survey) from a six-month cohort of 55 participants, per participant-day
$35 per participants per month
USD per participant-day of Fitbit data collection (study cost), US
“In this six-month cohort study, we expected to capture 100% of survey-based self-reported data and 100% of passive data parameters totaling 9,848 days of measurement. With minimal instruction to participants, we captured 66% number of days of steps, 44% of days for sleep, and 100% of days for calories ... The cost of implementing the study amounted to $35 per participants per month.”
- Kind of source
- The payer's or seller's own page
- Read on
- 2026-11-07
- Daily check
- Quote found at the source on 2026-11-07
- What to know
- A university project summary, not a peer-reviewed paper; the page does not break the cost down (devices, platform, staff or incentives), and the cost also covers a monthly survey.
- Arithmetic
- $35 / 30 days = $1.17 per participant-day (consistent with 55 participants x 6 months x $35 = $11,550 / 9,848 planned days = $1.17). Steps were captured on 66% of days: $1.17 / 0.66 = $1.77 per day with step data.
Used in
Kept as evidence; no figure on the platform is computed from it yet.