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9. Using Sensors > Hardware Support
Hardware Support
Unique among modern mobile platforms, Apple has gone to great lengths to ensure that your code will run on all of the current iOS-based devices. Yet despite this, there is still some variation in hardware between the various models (see Table 9-1).
Table 9-1. Hardware support in various iPhone, iPod touch, and iPad models
|
Hardware feature |
iPhone |
iPod touch |
iPad |
iPad 2 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Original |
3G |
3GS |
4 |
4S |
1st Gen |
2nd Gen |
3rd Gen |
4th Gen |
WiFi |
3G |
WiFi |
3G | |
|
Cellular |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
|
WiFi |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
|
Bluetooth |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
|
Speaker |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
|
Audio In |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
|
Accelerometer |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
|
Magnetometer |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
? |
|
Gyroscope | |||||||||||||
