Phone Comparison - LG G2 vs LG G3 vs Samsung Galaxy Alpha
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| Manufacturer | LG | LG | Samsung |
| Announced | August 2013 | May 2014 | August 2014 |
| Status | Available - September 2013 | Available - June 2014 | Available - September 2014 |
| Colors | Black, White | Black, White, Gold | Black, white, gold, silver, blue |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
138.5 x 70.9 x 8.9 mm (5.45 x 2.79 x 0.35 in) |
146.3 x 74.6 x 8.9 mm (5.76 x 2.94 x 0.35 in) |
132.4 x 65.5 x 6.7 mm (5.21 x 2.58 x 0.26 in) |
| Weight | 143 g (5.04 oz) | 149 g (5.26 oz) | 115 g (4.06 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 LTE - CDMA version |
GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 900 / 2100 | HSDPA 850 / 900 / 1700 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE (Region Dependent) | LTE 800 / 900 /1800 / 2100 / 2600 | LTE |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Android OS, v4.2.2 (Jelly Bean) | Android OS, v4.4.2 (KitKat) | Android OS, v4.4.4 (KitKat) |
| Processor | Quad-core 2.26 GHz Krait 400, Qualcomm MSM8974 Snapdragon 800 | Quad-core 2.5 GHz Krait 400, Qualcomm MSM8974AC Snapdragon 801 | Quad-core 1.8 GHz Cortex-A15 & quad-core 1.3 GHz Cortex-A7, Exynos 5 Octa 5430 |
| GPU | Adreno 330 | Adreno 330 | Mali-T628 MP6 |
| RAM | 2 GB | 2 GB | 2 GB |
| Internal Memory | 32 GB | 16 GB ROM | 32 GB |
| External Memory | No | microSD, up to 128 GB | No |
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| Type | True HD-IPS + LCD capacitive touchscreen, Corning Gorilla Glass 3 | True HD-IPS + LCD capacitive touchscreen | Super AMOLED capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.2 inches | 5.5 inches | 4.7 inches |
| Resolution | 1080 x 1920 pixels (424 ppi) | 1440 x 2560 pixels (534 ppi) | 720 x 1280 pixels (320 ppi) |
| Screen-to-Body Ratio | 75.78% | 76.42% | 66.95% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | Yes | No |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP, 4128 x 3096 pixels | 13 MP, 4160 x 3120 pixels | 12 MP, 4128 x 3096 pixels |
| Flash | LED flash | LED Flash | LED flash |
| Features | Auto-focus, Geo-tagging, Face Detection, Image Stabilization, HDR | Auto focus, Simultaneous Video And Image Recording, Geo-tagging, Face Detection, HDR, OIS | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Panorama, HDR |
| Video | Yes, 1080p@60fps | Yes, 2160p@30fps, 1080p@60fps, HDR, stereo sound rec., video stabilization | 2160p@30fps |
| Front Camera | Yes, 2.1 MP, 1080p@30fps [Similar] | Yes, 2.1 MP, 1080p@30fps [Similar] | 2.1 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, 42 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 100 Mbps DL | HSDPA, 42 Mbps; HSUPA, 21 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL/ EV-DO Rev. A, up to 3.1 Mbps | HSDPA, 42 Mbps, HSUPA; LTE-A, Cat6, 300 Mbps DL |
| Bluetooth | Yes, v4.0 with A2DP | Yes, v4.0 with A2DP, LE | v4.0, A2DP, EDR, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot |
| USB | Yes, microUSB v2.0 (MHL), USB Host | Yes, microUSB v3.0 (SlimPort), USB On-the-go, USB Host | microUSB v2.0 |
| GPS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS, GLONASS |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 32 GB, 2 GB RAM | 16 GB ROM, 2 GB RAM | 32 GB, 2 GB RAM |
| Expandable Storage | No | microSD, up to 128 GB | No |
| USB OTG | Supported | 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 | Non-removable Li-Po Battery | Li-Ion Battery | Li-Ion Battery |
| Capacity | 3000 mAh | 3000 mAh | 1860 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
