Phone Comparison - Samsung I9502 Galaxy S4 Duos vs Sony Xperia A vs Panasonic P51
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| Manufacturer | Samsung | Sony | Panasonic |
| Announced | March 2013 | May 2013 | May 2013 |
| Status | Available - April 2013 | Coming Soon - May 2013 | Available - May 2013 |
| Colors | White Frost, Black Mist | Black, White, Pink, Mint | Black, White |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
136.6 x 69.8 x 7.9 mm (5.38 x 2.75 x 0.31 in) |
131 x 67 x 10.5 mm (5.16 x 2.64 x 0.41 in) |
144 x 75 x 8.5 mm (5.67 x 2.95 x 0.33 in) |
| Weight | 132 g (4.66 oz) | 141 g (4.97 oz) | 135 g (4.76 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 2100 | HSDPA 900 / 2100 |
| 4G Network | - | LTE | - |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
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| OS | Android OS, v4.2.2 (Jelly Bean) | Android OS, v4.1 (Jelly Bean) | Android OS, v4.2 (Jelly Bean) |
| Processor | Quad-core 1.6 GHz Cortex-A15 & quad-core 1.2 GHz Cortex-A7, Exynos 5 Octa 5410 | Quad-core 1.5 GHz Krait, Qualcomm Snapdragon APQ8064 | Quad-core 1.2 GHz Cortex-A7, MTK MT6589 |
| GPU | PowerVR SGX 544MP3 | Adreno 320 | PowerVR SGX544 |
| RAM | 2 GB | 2 GB | 1 GB |
| Internal Memory | 16/32/64 GB storage | 32 GB | 4 GB storage |
| External Memory | microSD, up to 64 GB | No | microSD, up to 32 GB |
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| Type | Super AMOLED capacitive touchscreen | TFT Capacitive Touchscreen, HD Reality Display | IPS LCD capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.0 inches | 4.6 inches | 5.0 inches |
| Resolution | 1080 x 1920 pixels (441 ppi) | 720 x 1280 pixels (319 ppi) | 720 x 1280 pixels (294 ppi) |
| Screen-to-Body Ratio | 72.15% | 66.57% | 63.69% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | Stereo FM radio with RDS | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP, 4128 x 3096 pixels | 13.1 MP, 4128x3096 pixels | 8 MP, 3264 x 2448 pixels |
| Flash | LED flash | LED flash | LED flash |
| Features | Auto focus, Dual Shot, Simultaneous HD Video And Image Recording, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization, HDR | Auto focus, Geo-tagging, Touch Focus, Face Detection, Image Stabilization, HDR, Sweep Panorama, Smile Shutter, Sony Exmor RS for mobile image sensor | Auto focus, Geo-tagging, Touch Focus, Face Detection |
| Video | Yes, 1080p@30fps, dual-video rec. | Yes, 1080p@30fps, HDR | Yes, 1080p |
| Front Camera | Yes, 2 MP,1080p@30fps, dual video call [Similar] | Yes, VGA [Similar] | Yes, 1.3 MP, 720p [Similar] |
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| GPRS | Yes | Up to 107 kbps | Yes |
| Edge | Yes | Up to 296 kbps | Yes |
| 3G | HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps | HSDPA, 42 Mbps; HSUPA, 5.8 Mbps; LTE, Cat3, 50 Mbps UL, 100 Mbps DL | HSDPA, 21 Mbps; HSUPA, 11 Mbps |
| Bluetooth | Yes, v4.0 with A2DP, EDR, LE | Yes, v4.0 with A2DP | Yes, v4.0 with A2DP, EDR |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, DLNA, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot |
| USB | Yes, microUSB v2.0 (MHL 2), USB On-the-go, USB Host | Yes, microUSB v2.0 (MHL) | Yes, microUSB v2.0, USB On-the-go |
| GPS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS support | Yes, with A-GPS support |
| Browser | HTML5, Adobe Flash | HTML5 | HTML5 |
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| Internal | 16/32/64 GB storage, 2 GB RAM | 32 GB, 2 GB RAM | 4 GB storage, 1 GB RAM |
| Expandable Storage | microSD, up to 64 GB | No | microSD, up to 32 GB |
| 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 | Li-Ion Battery | Li-ion Battery | Li-Ion Battery |
| Capacity | 2600 mAh | 2300 mAh | 2500 mAh |
| Stand by | - | Up to 360 h (2G) Up to 420 h (3G) Up to 390 h (LTE) |
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| Talk Time | - | Up to 9 h 30 min (2G) Up to 10 h 30 min (3G) |
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