> 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/help-center/help-topics/something-else/provider-data-fields-and-coverage/device-version-differentiation-in-payload.md).

# How do I tell apart two hardware versions on one connection?

Dexcom data is returned exactly as Dexcom's API provides it, without splitting by hardware version, so readings from two device generations on one account…

[Dexcom](https://docs.tryterra.co/health-and-fitness-api/dexcom) data is returned exactly as Dexcom's API provides it, **without splitting by hardware version**, so readings from two device generations on one account aren't distinguishable in `device_data`.

Better device-type differentiation is a logged enhancement. Until it ships, there's no reliable in-payload separator for simultaneously worn devices.