Google Home (Nest) smart home kit for lighting and heating and security and sensors & automation and smart plugs
A compatible Google Home (Nest) starter kit for lighting and heating and security and sensors & automation and smart plugs: 8 devices plus 2 hub/bridge, about $893. Every pairing checked against manufacturer docs.
Devices
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Nanoleaf Essentials Matter A19 Smart Bulb $20
Matter over Thread: 'Matter compatible hub and Thread Border Router required'; compatible border routers are 'Matter hubs that double as Thread Border Routers' (or Nanoleaf Shapes, Lines and Elements). Bluetooth only for Nanoleaf app control. Home Assistant via Matter (HA is a Matter controller with a Thread border router).
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Lutron Caseta Diva Smart Dimmer Switch $88
Needs: vendor hub
Lutron ClearConnect radio; every integration runs through the Lutron Smart Hub ('The smart hub contains Apple Home technology'). 'No neutral wire required.' Home Assistant: official local HA integration exists but was not verified in this pass.
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ecobee Smart Thermostat Premium $260
'Works with Apple HomeKit', 'Alexa Built-in', Google Assistant voice, SmartThings listed (ecobee). Dual-band WiFi + BT 5.0 + 915 MHz for its room sensors. Matter not advertised. Home Assistant: HomeKit-controller path exists, not verified here.
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Aqara Smart Lock U100 $190
Needs: vendor hub
'Fully supports the Apple Home app' incl. Apple home key - works standalone for the Apple path. Alexa, Google Home, IFTTT and Matter each require an Aqara Zigbee 3.0 hub ('To use remote features... an Aqara 3.0 hub is required'). SmartThings/HA not manufacturer-claimed.
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Aqara Video Doorbell G4 $100
HomeKit Secure Video (end-to-end encrypted, HomePod notifications, Apple TV streaming) plus streaming/2-way talk on Echo and Nest displays. 2.4 GHz WiFi only; bundled chime acts as repeater + local storage. 'A future update will add Matter support' - not active. Battery (6x AA) or wired. No subscription needed (7-day free event cloud + microSD).
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Wyze Cam v4 $45
'Alexa, Google Assistant, IFTTT' (Wyze). No HomeKit, no Matter, no SmartThings mentioned. 2.4 GHz WiFi 6 + BT 5.2. 24/7 recording to microSD works without subscription; cloud AI features need Cam Plus.
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Aqara Door and Window Sensor P2 $30
Native Matter over Thread; 'A Matter-compatible Thread Border Router is required' (Apple TV 4K, HomePod, SmartThings hubs, Echo 4th gen, Nest Hub 2nd gen/Max, HA Yellow all listed by Aqara). Works with 'Aqara, Apple Home, Alexa, Google Home, and SmartThings'.
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Eve Energy Smart Plug & Power Meter —
'Works with Apple Home, Samsung SmartThings, Amazon Alexa, Google Home and Home Assistant' (Eve). Matter over Thread - needs a Thread border router of your platform. Energy monitoring surfaces on SmartThings and Home Assistant (plus the Eve app).
Hubs and bridges you also need
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Lutron Caseta Smart Hub —
Required as: vendor hub
Required gateway for every Caseta integration: 'The smart hub (formerly smart bridge) contains Apple Home technology'; also the path to Alexa, Google Assistant and SmartThings. Speaks Lutron ClearConnect to the switches; no Matter, no Thread. Sold standalone or in Diva kits; price not on the fetched pages.
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Aqara Hub M3 $160
Required as: vendor hub
$159.99 on Aqara's US store (launched at '$129.99 in the US'). Aqara's first Matter CONTROLLER, a Thread border router, and 'a Matter bridge for non-native Matter Aqara devices' (exposes Aqara Zigbee children like the U100 lock to other ecosystems). Dual-band WiFi, PoE Ethernet, Bluetooth, 360-degree IR blaster.
Total
$893
Excludes 2 items we could not price from a manufacturer or retailer page.