With Wi - Fi, you can do a lot more, including naming your Nest Protect (s) hallway / basement / bedroom, etc., opting out of the Pathlight feature,
receiving alerts and auto - updates to software, using the Nest Android or iOS mobile apps and Web app, pairing your Protect with the Nest
Learning Thermostat, Nest Cam and select Dropcam models for advanced integrations and even accessing IFTTT for third - party automations with color - changing bulbs like those from Lifx and Philips Hue.
The Nest
Learning Thermostat and Nest Protect smoke detector both existed before the Google acquisition, and both
received minor upgrades under Google's (and later Alphabet's) wing.