This table highlights key differences between "generations" of the iPhone.
| Model |
iPhone |
iPhone 3G |
iPhone 3GS |
iPhone 4 |
| Status |
Discontinued |
Discontinued |
In Production |
In Production |
| Display |
89 mm (3.5 in) glass LCD, 3:2 aspect ratio |
480 × 320 px (HVGA) at 163 ppi
|
960 × 640 px at 326 ppi |
| Storage |
4, 8, or 16 GB |
8 or 16 GB |
8, 16, or 32 GB |
16 or 32 GB |
| CPU Core |
620 MHz (underclocked to 412 MHz)
ARM 1176JZ(F)-S
|
833 MHz (underclocked to 600 MHz)
ARM Cortex-A8 |
1 GHz (underclocked to 800 MHz)
Apple A4 |
| Memory |
128 MB DRAM |
256 MB DRAM |
512 MB DRAM |
| Features |
USB 2.0/dock connector |
In addition to previous:
assisted GPS,
includes earphones with mic |
In addition to previous:
voice control, digital compass, Nike+,
includes earphones with remote and microphone |
In addition to previous:
3-axis gyroscope,
Dual-microphone noise suppression,
microSIM |
| Camera |
2.0 MP, still images only |
3.0 MP
30 frame/s VGA video |
Rear 5.0 MP
Front 0.3 MP (VGA)
Rear 30 frame/s 720p HD video
Front 30 frame/s 480p VGA video |
| Materials |
Aluminum, glass and black plastic |
Glass, plastic, and steel; black or white (white not available for 8 GB models) |
Black or white aluminosilicate glass and stainless steel |
| Power |
Built-in, non removable, rechargeable lithium-ion polymer battery |
| Released |
4 and 8 GB: June 29, 2007
16 GB: February 5, 2008 |
July 11, 2008 |
16 and 32 GB: June 19, 2009
Black 8 GB: June 24, 2010 |
GSM (Black): June 24, 2010
CDMA (Black): February 10, 2011
GSM and CDMA (White): April 28, 2011 |
| Discontinued |
4 GB: September 5, 2007
8 and 16 GB: July 11, 2008 |
16 GB: June 8, 2009
Black 8 GB: June 4, 2010 |
16 and 32 GB: June 24, 2010
Black 8 GB: In production |
In production |
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