Phone Comparison - Apple iPhone 3GS vs Apple iPhone 4 CDMA vs LG Optimus 4X HD
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| Manufacturer | Apple | Apple | LG |
| Announced | June 2009 | January 2011 | February 2012 |
| Status | Available - June 2009 | Available - February 2011 | Available - June 2012 |
| Colors | Black, White | Black, White | Black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
115.5 x 62.1 x 12.3 mm (4.55 x 2.44 x 0.48 in) |
115.2 x 58.6 x 9.3 mm (4.54 x 2.31 x 0.37 in) |
132.4 x 68.1 x 8.9mm (5.21 x 2.68 x 0.35in) |
| Weight | 135 g (4.76 oz) | 137 g (4.83 oz) | 133 g (4.69 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | CDMA 800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 850 / 1900 / 2100 | CDMA2000 1xEV-DO | HSDPA 900 / 1900 / 2100 |
| Messaging | SMS, MMS | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
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| OS | iPhone OS 3, upgradable to iOS 5 | iOS 4.2.5, upgradable to iOS 5 | Android OS, v4.0 (Ice Cream Sandwich) |
| Processor | 600 MHz Cortex-A8 | 1 GHz Cortex-A8, Apple A4 | Quad-core 1.5 GHz Cortex-A9, Nvidia Tegra 3 |
| GPU | PowerVR SGX535 | PowerVR SGX535 | ULP GeForce |
| RAM | 256 MB | 512 MB | 1 GB |
| Internal Memory | 8/16/32 GB storage | 16/32 GB storage | 16 GB storage |
| External Memory | No | No | Upto 16 GB |
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| Type | TFT capacitive touchscreen | LED-backlit IPS TFT, capacitive touchscreen | HD-IPS LCD capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 3.5 inches | 3.5 inches | 4.7 inches |
| Resolution | 320 x 480 pixels (165 ppi) | 640 x 960 pixels (330 ppi) | 720 x 1280 pixels (312 ppi) |
| Screen-to-Body Ratio | 50.75% | 53.92% | 67.74% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | No | Yes |
| Games | Yes | Yes | Yes |
| Loud Speaker | |
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| Rear Camera | 3.15 MP, 2048x1536 pixels | 5 MP, 2592 x 1944 pixels | 8 MP, 3264x2448 pixels |
| Flash | No | LED flash | LED flash |
| Features | Auto focus, Touch Focus, Geo-tagging | Auto focus, Touch Focus, Geo-tagging, HDR | Auto focus, Geo-tagging, Face And Smile Detection, Touch Focus, Image Stabilization |
| Video | Yes, VGA@30fps, video geo-tagging | Yes, 720p@30fps, LED video light, geo-tagging | Yes, 1080p@30fps |
| Front Camera | No [Similar] | Yes, videocalling over Wi-Fi only [Similar] | Yes, 1.3 MP [Similar] |
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| GPRS | Yes | No | Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps |
| Edge | Yes | No | Class 12 |
| 3G | HSDPA, 7.2 Mbps | Rev. A, up to 3.1 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps |
| Bluetooth | Yes, v2.1 with A2DP, headset support only | Yes, v2.1 with A2DP | Yes, with A2DP |
| Wi-Fi | Wi-Fi 802.11b/g | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi hotspot |
| USB | Yes, v2.0 | Yes, v2.0 | Yes, microUSB (MHL) v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support | Yes, with A-GPS support |
| Browser | HTML (Safari) | HTML (Safari) | HTML5, Adobe Flash |
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| Internal | 8/16/32 GB storage, 256 MB RAM | 16/32 GB storage, 512 MB RAM | 16 GB storage, 1 GB RAM |
| Expandable Storage | No | No | Yes |
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| Fingerprint | |
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| Proximity Sensor | |
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| Accelerometer Sensor | |
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| NFC | |
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| Type | Standard battery, Li-Ion | Standard battery, Li-Po | Standard battery, Li-Ion |
| Capacity | 1420 mAh | 2150 mAh | |
| Stand by | Up to 300 h | Up to 730 h (2G) Up to 686 h (3G) |
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| Talk Time | Up to 12 h (2G) Up to 5 h (3G) |
Up to 9 h 20 min (2G) Up to 10 h 50 min (3G) |
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