topic Re: Acceptable latency for Google Home Integrations in Smart Home Developer Forum

Acceptable latency for Google Home Integrations

Shivanshu_Leafi — Fri, 25 Jul 2025 21:08:04 GMT

Hello,

We have an Google Home integration with our devices but sometimes when giving Google a command it returns "Could not find device". I'm wondering what is the expected/acceptable time to get back a response from our backend system? Anything else I should look into to resolve this issue?

Re: Acceptable latency for Google Home Integrations

arm_dpe — Mon, 28 Jul 2025 17:43:04 GMT

Google's Smart Home platform has specific latency expectations for your backend system. According to Google Home Developer documentation:

Ideal latency: Less than 200ms.
Acceptable latency: Between 2-5 seconds.
If latency is consistently around 5 seconds, it's a strong indicator of an issue.

Specifically, for SYNC requests (when Google Home is trying to discover or re-sync your devices), you should aim to respond within 5 seconds. If your backend takes longer than these thresholds, Google Home might time out and report that it "Could not find device."

Re: Acceptable latency for Google Home Integrations

Shivanshu_Leafi — Mon, 28 Jul 2025 18:53:14 GMT

Thank you for the response! Just wondering, is the expectation same for `EXECUTE` requests?

Re: Acceptable latency for Google Home Integrations

081512341234 — Wed, 20 Aug 2025 15:57:14 GMT

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