> 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/provider-coverage-and-per-provider-data-availability/smart-scale-reliability.md).

# Which smart scales have the most reliable data flow?

WiFi-connected scales can be unreliable at uploading readings to the provider cloud, especially when users do not open the companion app.

**Bluetooth-connected scales tend to sync more consistently**, because the phone acts as the middleman between scale and cloud.

If users report dropped readings, encourage Bluetooth pairing and periodically opening the provider app.


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