Best for occupancy detection accuracy
Aqara Hub W200
4.5 feature score
Highest scored product for this feature based on supporting review evidence.
Best Smart Thermostats for occupancy detection accuracy
occupancy detection accuracy Decision Dashboard
Safest pick
ecobee Smart Thermostat Enhanced
4.3 feature score
Balances feature score, supporting reviews, and overall product strength.
Most evidence
Ecobee Smart Thermostat Premium
4 supporting reviews
Has the broadest review evidence for this feature.
Best overall product
Google Nest Learning Thermostat 4th Gen
4.2 overall score
Strongest overall product among items with scored evidence for this feature.
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The mmWave occupancy sensor earned strong praise for detecting presence more accurately than basic motion sensing.
Pros: comfort consistency, privacy controls
Cons: heat pump compatibility, included C-wire adapter
Occupancy detection was viewed as improved and mostly accurate, though one reviewer noted occasional misses.
Pros: Wi-Fi stability, Apple Home/HomeKit support
Cons: utility demand-response support, HVAC system compatibility depth
Occupancy detection is split: reviewers praise the radar sensor's accuracy, but one found presence detection unreliable without enough sensors.
Pros: conventional HVAC compatibility, touchscreen responsiveness
Cons: presence-based automation
Occupancy detection was mixed, with one reviewer praising distance sensing and another finding thermostat-only motion detection ineffective.
Pros: temperature accuracy, Apple Home/HomeKit support
Cons: shared household access, touchscreen responsiveness