Phone Comparison - LG Optimus 4X HD vs Samsung Galaxy Ace 3 LTE vs Samsung Galaxy Ace 4 LTE
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| Manufacturer | LG | Samsung | Samsung |
| Announced | February 2012 | June 2013 | June 2014 |
| Status | Available - June 2012 | Coming Soon - Q3 2013 | Available - July 2014 |
| Colors | Black | Black, White | Iris Charcoal, Classic White |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
132.4 x 68.1 x 8.9mm (5.21 x 2.68 x 0.35in) |
121.2 x 62.7 x 10 mm (4.77 x 2.47 x 0.39 in) |
121.4 x 62.9 x 11 mm (4.78 x 2.48 x 0.43 in) |
| Weight | 133 g (4.69 oz) | 119.5 g (4.2.0.18 oz) | 130.3 g (4.59.0.11 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 / 2100 | HSDPA 850 / 900 / 2100 |
| 4G Network | - | LTE 800 / 900 / 1800 / 2600 | LTE 800 / 900 / 1800 / 2600 |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
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| OS | Android OS, v4.0 (Ice Cream Sandwich) | Android OS, v4.1.2 (Jelly Bean) | Android OS, v4.4.2 (KitKat) |
| Processor | Quad-core 1.5 GHz Cortex-A9, Nvidia Tegra 3 | Dual-core 1.2 GHz | Dual-core 1.2 GHz |
| GPU | ULP GeForce | - | - |
| RAM | 1 GB | 1 GB | 1 GB |
| Internal Memory | 16 GB storage | 8 GB (5 GB user available) | 4 GB |
| External Memory | Upto 16 GB | microSD, up to 64 GB | microSD, up to 64 GB |
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| Type | HD-IPS LCD capacitive touchscreen | TFT capacitive touchscreen | TFT capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.7 inches | 4.0 inches | 4.0 inches |
| Resolution | 720 x 1280 pixels (312 ppi) | 480 x 800 pixels (233 ppi) | 480 x 800 pixels (233 ppi) |
| Screen-to-Body Ratio | 67.74% | 60.05% | 59.76% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Yes | Stereo FM radio with RDS | FM radio |
| Games | Yes | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264x2448 pixels | 5 MP, 2592x1944 pixels | 5 MP, 2592 х 1944 pixels |
| Flash | LED flash | LED flash | LED flash |
| Features | Auto focus, Geo-tagging, Face And Smile Detection, Touch Focus, Image Stabilization | Auto focus, Sound & Shot, Best Shot, Best Photo, Geo-tagging, Face And Smile Detection | Auto focus, Geo-tagging, Face And Smile Detection, Panorama |
| Video | Yes, 1080p@30fps | Yes, 720p@30fps | Yes, 720p@30fps |
| Front Camera | Yes, 1.3 MP [Similar] | Yes, VGA [Similar] | Yes, VGA [Similar] |
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| GPRS | Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps | Yes | Yes |
| Edge | Class 12 | Yes | Yes |
| 3G | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 150 Mbps DL | HSDPA, 42 Mbps; HSUPA, 5.76 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL |
| Bluetooth | Yes, with A2DP | Yes, v3.0 with A2DP | Yes, v4.0 with A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot |
| USB | Yes, microUSB (MHL) v2.0 | Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support and GLONASS | Yes, with A-GPS support and GLONASS |
| Browser | HTML5, Adobe Flash | HTML5 | HTML5 |
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| Internal | 16 GB storage, 1 GB RAM | 8 GB (5 GB user available), 1 GB RAM | 4 GB, 1 GB RAM |
| Expandable Storage | Yes | microSD, up to 64 GB | microSD, up to 64 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 | 1800 mAh | 1800 mAh |
| Stand by | Up to 730 h (2G) Up to 686 h (3G) |
- | - |
| Talk Time | Up to 9 h 20 min (2G) Up to 10 h 50 min (3G) |
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