Phone Comparison - LG Optimus 4X HD vs LG Optimus L9 vs LG Optimus G E970
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| Manufacturer | LG | LG | LG |
| Announced | February 2012 | August 2012 | September 2012 |
| Status | Available - June 2012 | Available - November 2012 | Available - November 2012 |
| Colors | Black | White | Black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
132.4 x 68.1 x 8.9mm (5.21 x 2.68 x 0.35in) |
131.9 x 68.2 x 9.1 mm (5.19 x 2.69 x 0.36 in) |
130.8 x 71.6 x 8.4 mm (5.15 x 2.82 x 0.33 in) |
| Weight | 133 g (4.69 oz) | 125 g (4.41 oz) | 147.1 g (5.19.0.04 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 900 / 1900 / 2100 | HSDPA 900 / 1900 / 2100 | HSDPA 850 / 1900 / 2100 |
| 4G Network | - | - | LTE 700 MHz Class 17 / 1700 / 2100 |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Android OS, v4.0 (Ice Cream Sandwich) | Android OS, v4.0.4 (Ice Cream Sandwich) | Android OS, v4.0.x (Ice Cream Sandwich), planned upgrade to v4.1.1 |
| Processor | Quad-core 1.5 GHz Cortex-A9, Nvidia Tegra 3 | Dual-core 1 GHz Cortex-A9, TI OMAP 4430 | Quad-core 1.5 GHz Krait, Qualcomm MDM9615/APQ8064 |
| GPU | ULP GeForce | PowerVR SGX540 | Adreno 320 |
| RAM | 1 GB | 1 GB | 2 GB |
| Internal Memory | 16 GB storage | 4 GB | 16 GB |
| External Memory | Upto 16 GB | microSD, up to 32 GB | microSD, up to 64 GB, 16 GB included |
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| Type | HD-IPS LCD capacitive touchscreen | IPS LCD, capacitive touchscreen | True HD-IPS + LCD capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.7 inches | 4.7 inches | 4.7 inches |
| Resolution | 720 x 1280 pixels (312 ppi) | 540 x 960 pixels (234 ppi) | 768 x 1280 pixels (318 ppi) |
| Screen-to-Body Ratio | 67.74% | 67.90% | 66.97% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Yes | Stereo FM radio with RDS | - |
| Games | Yes | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264x2448 pixels | 5 MP, 2592 x 1944 pixels | 8 MP, 3264 x 2448 pixels |
| Flash | LED flash | LED flash | LED flash |
| Features | Auto focus, Geo-tagging, Face And Smile Detection, Touch Focus, Image Stabilization | Auto focus, Geo-tagging | Auto focus, Geo-tagging, Face Detection, Image Stabilization |
| Video | Yes, 1080p@30fps | Yes | Yes, 1080p@30fps, LED video light |
| Front Camera | Yes, 1.3 MP [Similar] | Yes, VGA [Similar] | Yes, 1.3 MP [Similar] |
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| GPRS | Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps | Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps | Yes |
| Edge | Class 12 | Class 12 | Yes |
| 3G | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 100 Mbps DL |
| Bluetooth | Yes, with A2DP | Yes, with A2DP | Yes, v4.0 with A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot, DLNA | Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct, DLNA, Wi-Fi hotspot |
| USB | Yes, microUSB (MHL) v2.0 | Yes, microUSB v2.0 | Yes, microUSB (MHL) v2.0, USB Host support |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support | Yes, with A-GPS, S-GPS support and GLONASS |
| Browser | HTML5, Adobe Flash | HTML5 | HTML5, Adobe Flash |
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| Internal | 16 GB storage, 1 GB RAM | 4 GB, 1 GB RAM | 16 GB, 2 GB RAM |
| Expandable Storage | Yes | microSD, up to 32 GB | microSD, up to 64 GB, 16 GB included |
| USB OTG | - | - | Supported |
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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-Ion | Standard battery, Li-Po |
| Capacity | 2150 mAh | 2150 mAh | 2100 mAh |
| Stand by | Up to 730 h (2G) Up to 686 h (3G) |
- | Up to 324 h |
| Talk Time | Up to 9 h 20 min (2G) Up to 10 h 50 min (3G) |
- | Up to 10 h |
