You do not need a smartphone on you for Aura to detect motion. To identify who is home, Aura uses your phone's location services.
For Aura to detect your phone, you must be logged into the Aura app have your phone's data, and Wi-Fi turned on.
* You can't purchase more than 3 additional beacons for each starter kit.
* Your Aura Home setup will not work without the addition of a starter kit