Apple vs. Fitbit
Cozie is available for the Apple Watch and for select Fitbit devices. Watch-based surveys are available on both frameworks. However, the surrounding feature set differs between the two frameworks and might also depend on the exact devices used.
Please note that starting June 2024, third-party apps will no longer be available on the Fitbit app gallery in the EU, and hence, Cozie for Fitbit will no longer be available in the EU. (Source)
Look
Cozie Fitbit:
Cozie Apple:
Feature set comparison
| Features | Cozie Fitbit | Cozie Apple |
| Clock face |  |  |
| Android phones | Yes | No |
| iPhones | Yes | Yes |
| Watch surveys | Yes | Yes |
| User definable watch survey | No (requires changes to the app) | Yes (link to JSON file) |
| Follow-up questions | Yes | Yes |
| Heart rate data at the time of question flow response | Yes | Yes |
| GPS data at the time of question flow response | Yes | Yes (including accuracy metrics) |
| Heart rate data all day | Yes (from Fitbit API) | Yes |
| Resting heart rate data | Yes | Yes |
| Scheduled reminders watch surveys | Yes | Yes |
| Number of response options per question flow question | 4 | unlimited |
| Heart rate variability data all day | No | Yes |
| Stand time data | No | Yes |
| Step count data | No | Yes |
| Walking distance data | No | Yes |
| Noise data | No | Yes |
| Blood oxygen saturation data | No | Yes |
| Sleep analysis data | No | Yes |
| Externally triggered notifications | No | Yes |
| Instantaneous response submission to database | No | Yes |
| Phone survey | No | Yes |
| Configurable participation hours | No | Yes |
| Configurable participation days | No | Yes |
| Response counter in app | No | Yes |
| Wrist temperature data | No | Yes (one value per night) |
| Workout type | No | Yes (in development) |
| Workout duration | No | Yes (in development) |
| Activity minutes | No | Yes (in development) |
| Indoor location | No | No |