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list of iPads
There are three iterations of the iPad, with the iPad 2 and later having at least three models.
Comparison
| Tablet ( marketing-name)
|
iPad | iPad 2 | iPad 3 | iPad 4 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wi‑Fi | 3G | Wi‑Fi | GSM | CDMA | Wi‑Fi (Rev A) | Wi‑Fi | CDMA | Global | Wi‑Fi | GSM | Global | |
| Image | 
|
|
|
? | ||||||||
| Case Material | Aluminum | |||||||||||
| Colors | Black | Black/White | ||||||||||
| Dimensions | 9.56x7.47x0.5 in. 242.8x189.7x13.4 mm. |
9.5x7.31x0.34 in. 241.2x185.7x8.8 mm. |
9.5x7.31x0.37 in. 241.2x185.7x9.4 mm. | |||||||||
| Weight | 23.99 oz. 680 g. |
25.75 oz. 730 g. |
21.2 oz. 601 g. |
21.62 oz. 613 g. |
21.41 oz. 607 g. |
21.2 oz. 601 g. |
23.04 oz. 652 g. |
23.36 oz. 662 g. |
23.04 oz. 652 g. |
23.36 oz. 662 g. | ||
| Capacity (GB) | 16/32/64 | 16 | 16/32/64 | |||||||||
| CPU | S5L8930 A4 |
S5L8940 A5 |
S5L8942 A5 Rev A |
S5L8945 A5X |
S5L8955 A6X | |||||||
| CPU Speed (GHz) | 1 | 1.4 | ||||||||||
| CPU Cores | 1 | 2 | ||||||||||
| RAM | 256 MiB | 512 MiB | 1024 MiB | |||||||||
| Cache | L1 (32 KiB) L2 (512 KiB) |
L1 (32 KiB) L2 (1024 KiB) |
? | |||||||||
| Cellular Radio ( telephony-maximum-generation)
|
N/A | ? | N/A | EDGE (2.5G) | CDMA EV-DO Rev. A (3.5G) | N/A | ? | ? | N/A | LTE (4G) HSPA+ and DC-HSDPA (3.5G) EDGE (2.5G) |
LTE (4G) HSPA+ and DC-HSDPA (3.5G) CDMA EV-DO Rev. A and Rev. B (3.5G) EDGE (2.5G) | |
| Battery (volts) | 3.75 | 3.8 | 3.78 | ? | ||||||||
| Battery (Wh) | 24.8 | 25 | 42.5 | |||||||||
| Battery (mAh) | 6600 | 6930 | 11560 | ? | ||||||||
| Internal Name | iPad1,1 | iPad2,1 | iPad2,2 | iPad2,3 | iPad2,4 | iPad3,1 | iPad3,2 | iPad3,3 | iPad3,4 | iPad3,5 | iPad3,6 | |
| Initial Firmware | 3.2 (7B367) |
4.3 (8F191) |
4.3 (8F191) |
4.3 (8F191) |
5.1 (9B176) |
5.1 (9B176) |
5.1 (9B176) |
5.1 (9B176) |
6.0 (10A407) |
6.0.1 (10A8426) |
6.0.1 (10A8426) | |
| Latest (publicly available) firmware | 5.1.1 (9B206) |
16.1.1 (20B101) | 16.1.1 (20B101) | 16.1.1 (20B101) | 16.1.1 (20B101) | 16.1.1 (20B101) | 16.1.1 (20B101) | 16.1.1 (20B101) | 16.1.1 (20B101) | 16.1.1 (20B101) | 16.1.1 (20B101) | |
| Latest firmware | 16.1.1 (20B101) | 16.1.1 (20B101) | 16.1.1 (20B101) | 16.1.1 (20B101) | 16.1.1 (20B101) | 16.1.1 (20B101) | 16.1.1 (20B101) | 16.1.1 (20B101) | 16.1.1 (20B101) | 16.1.1 (20B101) | ||
| aGPS | No | Yes | No | Yes | No | Yes | No | Yes | ||||
| Camera (MP) ( still-camera)
|
No | 0.75 | 5 | |||||||||
| FaceTime/Front-Facing Camera | No | VGA | 720p | |||||||||
| Video recording ( video-camera)
|
No | Yes | ||||||||||
| Auto-Focus ( auto-focus-camera)
|
No | Yes | ||||||||||
| GPS ( gps)
|
No | Yes | No | Yes | No | Yes | No | Yes | ||||
| Gyroscope | No | Yes | ||||||||||
| Video Calls ( venice)
|
No | Yes | ||||||||||
| Dictation | No | Yes | ||||||||||
| Siri | No | Requires iOS 6 or greater | Yes | |||||||||
