Phone Comparison - LG Optimus L9 vs LG Optimus L7 P700 vs Acer Liquid E2 Duo
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| Manufacturer | LG | LG | Acer |
| Announced | August 2012 | February 2012 | April 2013 |
| Status | Available - November 2012 | Released - May 2012 | Coming Soon - May 2013 |
| Colors | White | Black, White | Black, White |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
131.9 x 68.2 x 9.1 mm (5.19 x 2.69 x 0.36 in) |
125.5 x 67 x 8.7 mm (4.94 x 2.64 x 0.34 in) |
131 x 68 x 9.9 mm (5.16 x 2.68 x 0.39 in) |
| Weight | 125 g (4.41 oz) | 122 g (4.3 oz) | 140 g (4.94 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 900 / 1900 / 2100 | HSDPA 900 / 1900 / 2100 | HSDPA |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail |
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| OS | Android OS, v4.0.4 (Ice Cream Sandwich) | Android OS, v4.0.3 (Ice Cream Sandwich), upgradeable to 4.1.2 (Jelly Bean) | Android OS, v4.2.1 (Jelly Bean) |
| Processor | Dual-core 1 GHz Cortex-A9, TI OMAP 4430 | 1 GHz Cortex-A5, Qualcomm MSM7227A Snapdragon | Quad-core 1.2 GHz Cortex-A7, MTK 6589 |
| GPU | PowerVR SGX540 | Adreno 200 | PowerVR SGX 544MP |
| RAM | 1 GB | 512 MB | 1 GB |
| Internal Memory | 4 GB | 4 GB storage (2.4 GB user available) | 4 GB |
| External Memory | microSD, up to 32 GB | microSD, up to 32 GB | microSD, up to 32 GB |
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| Type | IPS LCD, capacitive touchscreen | IPS LCD, capacitive touchscreen | IPS LCD capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.7 inches | 4.3 inches | 4.5 inches |
| Resolution | 540 x 960 pixels (234 ppi) | 480 x 800 pixels (217 ppi) | 540 x 960 pixels (245 ppi) |
| Screen-to-Body Ratio | 67.90% | 62.57% | 62.55% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | FM radio | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592 x 1944 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 | Auto focus, Geo-tagging, Touch Focus | Auto focus, Geo-tagging |
| Video | Yes | Yes, VGA@30fps | Yes, 1080p@30fps |
| Front Camera | Yes, VGA [Similar] | Yes [Similar] | Yes, 2 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 | HSPA+ |
| Bluetooth | Yes, with A2DP | Yes, v3.0 with A2DP | Yes, v3.0 with A2DP, EDR |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot, DLNA | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot, DLNA | Wi-Fi 802.11 a/b/g/n, dual band, Wi-Fi hotspot |
| USB | Yes, microUSB v2.0 | Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support | Yes, with A-GPS support |
| Browser | HTML5 | HTML, Adobe Flash Lite | HTML |
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| Internal | 4 GB, 1 GB RAM | 4 GB storage (2.4 GB user available), 512 MB RAM | 4 GB, 1 GB RAM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 32 GB | microSD, up to 32 GB |
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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 | Li-Ion battery | Li-Ion Battery |
| Capacity | 2150 mAh | 1700 mAh | 2000 mAh |
| Stand by | - | Up to 550 h | Up to 450 h |
| Talk Time | - | Up to 6 h | Up to 9 h |
