The iPad has evolved since it was originally announced in January, 2010. The iPad 2 added dual-facing cameras along with a faster processor and improved graphics, but the biggest jump was with the iPad 3, which increased the resolution of the display to 2,048 x 1,536 and added Siri for voice recognition. The release of the iPad 4 represents a super-charged iPad 3, with around twice the processing power. And the iPad Mini is Apple's first 7.9-inch iPad.
The following chart iterates the differences between the iPad 2, 3, 4 and the iPad Mini:
How to Connect Your iPad To Your HDTV
iPad Comparison:
| Feature | iPad 2 | iPad 3 | iPad 4 | iPad mini |
| Display: | 9.7-inch IPS LED-backlit | 9.7-inch IPS LED-backlit | 9.7-inch IPS LED-backlit | 7.9-inch IPS LED-backlit |
| Resolution: | 1024x768 | 2048x1536 | 2048x1536 | 1024x768 |
| CPU: | Dual-Core Apple A5 | Dual-Core Apple A5X | Dual-Core Apple A6X | Dual-Core Apple A5 |
| Graphics: | PowerVR SGX543MP2 | PowerVR SGX543MP4 | PowerVR SGX543MP4 | PowerVR SGX543MP2 |
| Memory: | 512 MB | 1 GB | 1 GB | |
| Storage: | 16, 32, 64 GB | 16, 32, 64 GB | 16, 32, 64 GB | 16, 32, 64 GB |
| Camera: | Front-facing: VGA | Rear-facing: 720p | Front-facing: 720p | Rear-facing: iSight 5 MP | Front-facing: 720p | Rear-facing: iSight 5 MP | Front-facing: 720p | Rear-facing: iSight 5 MP |
| Data Rate: | 3G | 4G LTE | 4G LTE | 4G LTE |
| Wi-Fi: | 802.11 a/b/g/n | 802.11 a/b/g/n | 802.11 a/b/g/n | 802.11 a/b/g/n |
| Bluetooth: | 2.1 + EDR | 4.0 | 4.0 | 4.0 |
| Siri: | NO | YES | YES | YES |
| Accelerometer: | YES | YES | YES | YES |
| Compass: | YES | YES | YES | YES |
| Gyroscope: | YES | YES | YES | YES |
| GPS: | 3G Version Only | 4G Version Only | 4G Version Only | 4G Version Only |
| Buy Now: | Compare Prices | Compare Prices | Compare Prices | Compare Prices |


