The iPhone 3GS is the most recent of three generations of the iPhone.
Manufacturer    Apple Inc.

Type Slate smartphone

Release date Original: June 29, 2007[1]
3G: July 11, 2008[2]
3GS: June 19, 2009[3]
Units sold 42.48 million (as of Q1 2010)
Operating system iPhone OS
3.1.3 (build 7E18)
Released February 2, 2010; 6 day(s) ago
Power Original: 3.7 V 1400 mAh
3G: 3.7 V 1150 mAh
3GS: 3.7 V 1219 mAh[4]
Internal rechargeable non-removable lithium-ion polymer battery[5]

CPU Original & 3G: Samsung 32-bit RISC ARM 1176JZ(F)-S v1.0[6]
620 MHz underclocked to 412 MHz[7]
PowerVR MBX Lite 3D GPU[8]
3GS: Samsung S5PC100 ARM Cortex-A8[9]
833 MHz underclocked to 600 MHz
PowerVR SGX GPU[10]
Storage capacity    Flash memory
Original: 4, 8, & 16 GB
3G: 8 & 16 GB
3GS: 16 & 32 GB
Memory Original & 3G: 128 MB eDRAM[11]
3GS: 256 MB eDRAM[9]
Display 320 × 480 px, 3.5 in (89 mm), 2:3 aspect ratio, 18-bit (262,144-color) LCD with 163 pixels per inch (ppi)
Input    Multi-touch touchscreen display, headset controls, proximity and ambient light sensors, 3-axis accelerometer[12]
3GS also includes: digital compass[13]
Camera Original & 3G: 2.0 megapixels with geotagging
3GS: 3.0 megapixels with video (VGA at 30 fps), geotagging, and automatic focus, white balance, & exposure
Connectivity Wi-Fi (802.11b/g), Bluetooth 2.0+EDR (3GS: 2.1), USB 2.0/Dock connector
Quad band GSM 850 900 1800 1900 MHz GPRS/EDGE[14]
3G also includes: A-GPS; Tri band UMTS/HSDPA 850, 1900, 2100 MHz[15]
3GS also supports: 7.2 Mbps HSDPA
Online services    iTunes Store, App Store, MobileMe
Dimensions    Original:
115 mm (4.5 in) (h)
61 mm (2.4 in) (w)
11.6 mm (0.46 in) (d)
3G & 3GS:
115.5 mm (4.55 in) (h)
62.1 mm (2.44 in) (w)
12.3 mm (0.48 in) (d)
Weight Original & 3GS: 135 g (4.8 oz)
3G: 133 g (4.7 oz)
Related articles    iPod Touch (Comparison), iPad