Best for C-wire requirement flexibility
Google Nest Learning Thermostat 4th Gen
4.5 feature score
Highest scored product for this feature based on supporting review evidence.
Best Google Smart Home for C-wire requirement flexibility
C-wire requirement flexibility Decision Dashboard
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C-wire flexibility was praised as a practical installation advantage because the thermostat can work without a common wire in some setups.
Pros: temperature accuracy, Apple Home/HomeKit support
Cons: shared household access, touchscreen responsiveness