iPad 2 3G 16 GB vs iPad 4 Wi-Fi 16 GB
| Type | A tablet | A tablet |
| Dimensions | 241.20 x 185.70 x 8.80 mm | 241.20 x 185.70 x 9.40 mm |
| Weight | 613.00 g | 652.00 g |
| Display size | 9.70" | 9.70" |
| Display | Color / IPS TFT 16M colors 768 x 1024 px (9.70") 132 ppi | Color / IPS TFT 1536 x 2048 px (9.70") 264 ppi |
| Display protection |   | |
| Additional display | | |
| Protection of the secondary display | | |
| Stand-by (max.) | 2G: 720 h. (30.0 days) |  |
| PDA mode work time | 600 h (25.0 days) | 10 h (0.4 days) |
| Standard battery | Li-Po Buy powerbank
| Li-Po Buy powerbank
|
| Quick battery charging | | |
| Wireless battery charging | | |
| Internal memory | 16 GB | 16 GB |
| RAM memory | | 1 GB |
| Memory cards | | |
| Operating system | iOS 4.3 | iOS 6 |
| Processor | Apple A5 | Apple A6X |
| Processor clock | 1000 MHz | - |
| GPU | PowerVR SGX543 MP2 | - |
| Touchscreen |  | |
| DualSIM | | |
| Announced | 1Q 2011 | |
| Other names | - | iPad with Retina display |
| GSM frequencies | 850 900 1800 1900 | |
| UMTS | 900 1900 2100 | |
| LTE standard | | |
| CDMA | | |
| Standard TD-SCDMA | | |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Photo matrix | 0.7 Mpx | 5 Mpx |
| Resolution | 960x720 px | 2592x1944 px |
| Optical zoom | | |
| Digital zoom | 5x | |
| Flash | | |
| Dual-colour LED flash | | |
| Video resolution | 1280x720 px | 1920x1080 px |
| Video formats | H.264 - 30 fps | |
| Additional | - | - |
CAMERAS - FRONT
| First camera | | |
| Photo matrix | 0.3 Mpx | 1.2 Mpx |
| Resolution | 640x480 px | |
| Optical zoom | | |
| Flash | | |
| Dual-colour LED flash | | |
| Additional | - | - |
SENSORS
| Accelerometer | | |
| Proximity | | |
| Light | | |
| Magnetometer | | |
| Gyroscope | | |
| Barometer | | |
| Altimeter | | |
| Gravity | | |
| Hall-effect | | |
| Iris scanner | | |
| Fingerprint scanner | | |
| Thermometer | | |
| Hygrometer | | |
Data transfer
| xHTML | | |
| WAP | | |
| HSCSD | | |
| HSDPA | | |
| HSUPA | | |
| HSPA | | |
| HSPA+ | | |
| LTE DL | | |
| LTE UP | | |
| WIMAX+ | | |
| GPRS | | |
| EDGE | | |
| Bluetooth | v2.1 EDR | v4.0 |
| A2DP Profile | | |
| HDMI | | |
| WiFi | v802.11 a/b/g/n | v802.11 a/b/g/n |
| WiFi frequencies | 2,4 GHz | 2,4 GHz |
| WiFi Direct | | |
| WiFi Display | | |
| DLNA | | |
| Miracast | | |
| WiFi hotspot | | |
| IrDA | | |
| USB | v2.0 | |
| GPS | | |
| A-GPS | | |
| Beidou | | |
| NFC | | |
COMMUNICATION AND MESSAGING
| Call waiting | | |
| Conferency | | |
| Call forwarding | | |
| Push To Talk | | |
| Instant Messenger | | |
| SMS | | |
| EMS | | |
| MMS | | |
| Dictionary | | |
| Swype | | |
| e-mail client | | |
| Hardware QWERTY keyboard | | |
| RSS Reader | | |
Multimedia
| Radio | | |
| MP3 | | |
| Stereo speakers | | |
| Audio Jack | 3.5 mm | 3.5 mm |
| HD Voice | | |
| Sound formats | AAC, AIFF, ALAC, WAV, eAAC+ | AAC, AAX+, AIFF, HE-AAC, AAX, WAV |
| Polyphony | | |
| Video ringtone | | |
| Ring composer | | |
| Games | | |
| Java | | |
| Videophone | | |
| DVB-H television | | |
| TV-Out | | |
PIM AND ADDITIONAL FUNCTIONS
| Watch | | |
| Stopwatch | | |
| Alarm | | |
| Calculator | | |
| Currency converter | | |
| Organizer | | |
| Calendar | | |
| Flight mode | | |
| SyncML | | |
| Data and fax | | |
| Screensaver | | |
| Themes | | |
| Interchangeable covers | | |
| Voice dial | | |
| Speakerphone | | |
| Recorder | | |
| Vibrations | | |