> For the complete documentation index, see [llms.txt](https://docs.tryterra.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tryterra.co/faq/help-topics/data-api-sdk/data-model-fields-and-units/daily-vs-body-payload-differences.md).

# What is the difference between body and daily payloads?

**Daily** and **Body** payloads cover different things, with some deliberate overlap.

* **Daily** payloads are per-calendar-day summaries of activity and health metrics, and update throughout the day.
* **Body** payloads contain body-specific measurements (weigh-ins, blood glucose, and so on), sent whenever the user records a new measurement.

Metrics that appear in both (HR, RHR, HRV, SpO2, VO2 max, and similar) carry **the same values in either payload**, so you can read them from whichever is more convenient. If you only need daily metrics, you can consume Daily alone without missing data.

See the [data models reference](https://docs.tryterra.co/reference/health-and-fitness-api/data-models) for the full payload structures.