Phone Comparison - Sony Xperia J vs LG Optimus L9 vs Nokia Lumia 720
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| Manufacturer | Sony | LG | Nokia |
| Announced | August 2012 | August 2012 | February 2013 |
| Status | Available - October 2012 | Available - November 2012 | Available - April 2013 |
| Colors | Black, White, Gold, Pink | White | White, Red, Yellow, Cyan/Black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
124.3 x 61.2 x 9.2 mm (4.89 x 2.41 x 0.36 in) |
131.9 x 68.2 x 9.1 mm (5.19 x 2.69 x 0.36 in) |
127.9 x 67.5 x 9 mm (5.04 x 2.66 x 0.35 in) |
| Weight | 124 g (4.37 oz) | 125 g (4.41 oz) | 128 g (4.52 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 900 / 2100 - ST26i HSDPA 850 / 1900 / 2100 - ST26a |
HSDPA 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 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, v4.0.4 (Ice Cream Sandwich) | Android OS, v4.0.4 (Ice Cream Sandwich) | Microsoft Windows Phone 8 |
| Processor | 1 GHz Cortex-A5, Qualcomm MSM7227A Snapdragon | Dual-core 1 GHz Cortex-A9, TI OMAP 4430 | Dual-core 1 GHz, Qualcomm MSM8227 |
| GPU | Adreno 200 | PowerVR SGX540 | Adreno 305 |
| RAM | 512 MB | 1 GB | 512 MB |
| Internal Memory | 4 GB | 4 GB | 8 GB storage |
| External Memory | microSD, up to 32 GB | microSD, up to 32 GB | microSD, up to 64 GB |
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| Type | TFT capacitive touchscreen | IPS LCD, capacitive touchscreen | TFT capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.0 inches | 4.7 inches | 4.3 inches |
| Resolution | 480 x 854 pixels (245 ppi) | 540 x 960 pixels (234 ppi) | 480 x 800 pixels (217 ppi) |
| Screen-to-Body Ratio | 57.92% | 67.90% | 60.94% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | Stereo FM radio with RDS | No |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592х1944 pixels | 5 MP, 2592 x 1944 pixels | 6.7 MP, Carl Zeiss optics |
| Flash | LED flash | LED flash | LED flash |
| Features | Auto focus, Geo-tagging, Touch Focus, Image Stabilization | Auto focus, Geo-tagging | Auto focus, Geo-tagging |
| Video | Yes, VGA | Yes | Yes, 720p@30fps |
| Front Camera | Yes, VGA [Similar] | Yes, VGA [Similar] | Yes, 1.3 MP [Similar] |
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| GPRS | Up to 86 kbps | Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps | Yes |
| Edge | Up to 237 kbps | Class 12 | Yes |
| 3G | HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps |
| Bluetooth | Yes, v2.1 with A2DP, EDR | Yes, with A2DP | Yes, v3.0 with A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot, DLNA | Wi-Fi 802.11 a/b/g/n, dual-band |
| 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 and GLONASS |
| Browser | HTML5, Adobe Flash | HTML5 | HTML5 |
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| Internal | 4 GB, 512 MB RAM | 4 GB, 1 GB RAM | 8 GB storage, 512 MB RAM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 32 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 | Standard battery, Li-Ion | Li-Ion Battery |
| Capacity | 1750 mAh | 2150 mAh | 2000 mAh |
| Stand by | Up to 607 h (2G) Up to 618 h (3G) |
- | Up to 520 h |
| Talk Time | Up to 5 h 36 min (2G) Up to 7 h 18 min (3G) |
- | Up to 23 h 20 min (2G) Up to 13 h 20 min (3G) |
