Phone Comparison - Sony Ericsson Xperia pro vs Panasonic P51 vs Panasonic T31
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| Manufacturer | Sony Ericsson | Panasonic | Panasonic |
| Announced | February 2011 | May 2013 | October 2013 |
| Status | Available - October 2011 | Available - May 2013 | Available - November 2013 |
| Colors | Black, Silver, Red | Black, White | Bluish Black, Pure White |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
120 x 57 x 13.5 mm (4.72 x 2.24 x 0.53 in) |
144 x 75 x 8.5 mm (5.67 x 2.95 x 0.33 in) |
122 x 64.4 x 11.95 mm (4.8 x 2.54 x 0.47 in) |
| Weight | 142 g (5.01 oz) | 135 g (4.76 oz) | 120 g (4.23 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 900 / 2100 HSDPA 850 / 1900 / 2100 |
HSDPA 900 / 2100 | HSDPA 850 / 1900 / 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, v2.3 (Gingerbread), planned upgrade to v4.0 | Android OS, v4.2 (Jelly Bean) | Android OS, v4.2.2 (Jelly Bean) with FOTA upgrade |
| Processor | 1 GHz Scorpion, Qualcomm MSM8255 Snapdragon | Quad-core 1.2 GHz Cortex-A7, MTK MT6589 | Dual-core 1.3 GHz, MTK 6572 |
| GPU | Adreno 205 | PowerVR SGX544 | Mali-400 |
| RAM | 512 MB | 1 GB | 512 MB |
| Internal Memory | 1 GB (320 MB user available) | 4 GB storage | 4 GB (1.9 GB user memory) |
| External Memory | microSD, up to 32GB, 8 GB included | microSD, up to 32 GB | microSD, up to 32 GB |
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| Type | LED-backlit LCD, capacitive touchscreen | IPS LCD capacitive touchscreen | TFT capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 3.7 inches | 5.0 inches | 4.0 inches |
| Resolution | 480 x 854 pixels (265 ppi) | 720 x 1280 pixels (294 ppi) | 480 x 800 pixels (233 ppi) |
| Screen-to-Body Ratio | 55.06% | 63.69% | 58.08% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | FM radio | FM Radio with Recording |
| Games | Yes | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 8 MP, 3264x2448 pixels | 8 MP, 3264 x 2448 pixels | 3.2 MP, 2048x1536 pixels |
| Flash | LED flash | LED flash | No |
| Features | Auto focus, Video Calling, Touch Focus, Geo-tagging, Face And Smile Detection | Auto focus, Geo-tagging, Touch Focus, Face Detection | Fixed Focus, Geo-tagging |
| Video | Yes, 720p@30fps, continuous autofocus, video light | Yes, 1080p | Yes, VGA@30fps |
| Front Camera | Yes, VGA [Similar] | Yes, 1.3 MP, 720p [Similar] | Yes, VGA [Similar] |
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| GPRS | Up to 86 kbps | Yes | Yes |
| Edge | Up to 237 kbps | Yes | Yes |
| 3G | HSDPA, 7.2 Mbps; HSUPA, 5.8 Mbps | HSDPA, 21 Mbps; HSUPA, 11 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps |
| Bluetooth | Yes, v2.1 with A2DP | Yes, v4.0 with A2DP, EDR | 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 v2.0 | Yes, microUSB v2.0, USB On-the-go | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support | Yes, with A-GPS support |
| Browser | HTML, Adobe Flash | HTML5 | HTML5 |
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| Internal | 1 GB (320 MB user available), 512 MB RAM | 4 GB storage, 1 GB RAM | 4 GB (1.9 GB user memory), 512 MB RAM |
| Expandable Storage | microSD, up to 32GB, 8 GB included | microSD, up to 32 GB | microSD, up to 32 GB |
| 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-Po | Li-Ion Battery | Li-Ion Battery |
| Capacity | 1500 mAh | 2500 mAh | 1300 mAh |
| Stand by | Up to 430 h (2G) Up to 400 h (3G) |
- | Up to 510 h (2G) Up to 400 h (3G) |
| Talk Time | Up to 6 h 55 min (2G) Up to 7 h (3G) |
- | Up to 3 h 30 min (2G) Up to 9 h 30 min (3G) |
