If I’m correctly informed, this is the availability of the Compass, Gyroscope and Accelerometer on various iOS devices.
| iPhone 3G | iPhone 3GS | iPhone 4 | iPhone 4s | iPhone 5 | iPad 1 | iPad 2,3,4 | iPad Mini | iPod 3 | iPod 4 | iPod 5 | |
| Com. | – | x | x | x | x | x | x | x | – | – | – |
| Gyro | – | – | x | x | x | – | x | x | – | x | x |
| Accel. | x | x | x | x | x | x | x | x | x | x | x |