Hallux,
Originally Posted by
hallux We can't suggest a device if we don't know what the specific hardware requirements are.
Fair enough:
1. Accelerometer
2. Gyroscope
Basically, as you may or may not know, these are for sensing movement. As I said above, this phone would be for a specific purpose, and that purpose is an exercise/physical therapy device I'm very interested in (so I would just buy the phone, put it in the device, and keep it there). The product only works with a phone, that phone needs its corresponding app, and that app needs these components in the phone in order to function. Hope that makes sense.