Do I have to have a smartphone to use Quell?
You do not need a smartphone to use Quell. The device functions independently of the app and all the core therapeutic functionality can be operated manually from the device. The smartphone enables tracking of sleep, activity, pain and gait, as well as certain customization features of therapy dosage and sleep settings.
Quell 2.0 does require a smartphone/tablet for set-up and calibration.