Good Internet Speed for Home Automation — Routines, Scenes, and Integrations
Home automation — automated routines, scenes, geofencing, and hub integrations — has very different internet requirements from bandwidth-intensive activities. Test your home network at instantspeedtest.net/.
Home Automation Response Time — Internet vs Local Processing
| Automation Type | Processing Location | Internet Required | Response Time |
|---|---|---|---|
| Local hub automation (SmartThings, Hubitat) | Local hub | No (for execution) | 50–200ms |
| Cloud automation (IFTTT, Google Home) | Cloud servers | Yes | 500ms–3 seconds |
| Voice assistant (Alexa/Google) | Cloud | Yes | 1–3 seconds |
| Matter local automations | Local | No | Under 100ms |
| Geofencing arrival/departure | Cloud + local | Yes | 10–60 seconds |
| Scheduled automations | Hub/device | Optional | Immediate |
The Local vs Cloud Automation Divide — Why Internet Speed Barely Matters
The key insight for home automation: local processing doesn’t need internet and is always faster than cloud processing regardless of how fast your internet is. Hubitat and Home Assistant running automations locally execute in under 200ms — even on slow internet. Cloud-based automations (IFTTT, Google Assistant routines) make a round trip to cloud servers — taking 500ms–3 seconds regardless of internet speed, because the cloud server processing itself takes time. For instant, reliable automation: choose platforms that support local processing. Home Assistant (open source, runs on Raspberry Pi or NAS) is the gold standard for local processing. Matter’s Thread protocol brings local processing to an expanding device ecosystem. For most home automation setups, any standard broadband connection is more than adequate — internet reliability (not speed) is the relevant metric. See our IoT guide.
Related Guides
- Speed for IoT
- Smart Home Internet Speed
- Speed for Smart Home Hub
- Speed for Nest Thermostat
- Guest WiFi for Smart Home
- Devices on WiFi
Frequently Asked Questions
Does home automation work during internet outages?
Local automation platforms (Hubitat, Home Assistant) continue full automation operation during internet outages — lights turn on at sunset, routines run at scheduled times, and motion triggers activate as normal. Cloud-dependent platforms (Google Home routines, Amazon Alexa routines) lose automation capability without internet. Voice control requires internet for all major platforms. Local matter/zigbee/z-wave device control continues without internet on local hub platforms. For 100% reliable automation: invest in a local platform rather than purely cloud-dependent systems.
What is the minimum internet speed for a smart home with 100 devices?
For 100 devices of the typical smart home mix (lights, sensors, a few cameras): 50–100 Mbps handles the bandwidth comfortably. The bandwidth is dominated by 4–8 cameras (8–32 Mbps total upload) and active streaming devices. The remaining 90+ devices use negligible bandwidth collectively. Router device capacity (WiFi 6 router supporting 100+ connections) matters more than ISP speed for large smart home setups.