Phone Comparison - Sony Xperia U vs Sony Xperia M2 vs Sony Xperia E3 Dual
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| Manufacturer | Sony | Sony | Sony |
| Announced | February 2012 | February 2014 | September 2014 |
| Status | Available - May 2012 | Available - May 2014 | Available - September 2014 |
| Price | - | - | Rs. 9,614 ($141.38) [Similarly Priced] |
| Colors | Black, White/ exchangeable bottom caps in white, black, pink, ye | Black, White, Purple | Black, White, Yellow, Copper |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
112 x 54 x 12 mm (4.41 x 2.13 x 0.47 in) |
139.6 x 71.1 x 8.6 mm (5.5 x 2.8 x 0.34 in) |
137.1 x 69.4 x 8.5 mm (5.4 x 2.73 x 0.33 in) |
| Weight | 110 g (3.88 oz) | 148 g (5.22 oz) | 143.8 g (5.04.0.28 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 900 / 2100 - ST25iHSDPA 850 / 1900 / 2100 - ST25a | HSDPA | HSDPA 850 / 900 / 1900 / 2100 |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
| Build Features | - | Scratch-Resistant Glass | - |
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| OS | Android OS, v2.3 (Gingerbread), upgradable to v4.0 | Android OS, v4.3 (Jelly Bean) | Android OS, v4.4.2 (KitKat) |
| Processor | Dual-core 1 GHz Cortex-A9, STE U8500 | Quad-core 1.2 GHz Cortex-A7, Qualcomm MSM8926 Snapdragon 400 (D2303, D2306)/ MSM8226 (D2305) | Quad-core 1.2 GHz Cortex-A7, Qualcomm MSM8226-2 Snapdragon 400 |
| GPU | Mali-400MP | Adreno 305 | Adreno 305 |
| RAM | 512 MB | 1 GB | 1 GB |
| Internal Memory | 8 GB (4 GB user-accessible) | 8 GB ROM | 4 GB |
| External Memory | No | microSD, up to 32 GB | microSD, up to 32 GB |
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| Type | LED-backlit LCD, capacitive touchscreen | TFT Capacitive Touchscreen | IPS Capacitive Touchscreen, Shatter Proof Glass |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 3.5 inches | 4.8 inches | 4.5 inches |
| Resolution | 480 x 854 pixels (280 ppi) | 540 x 960 pixels (229 ppi) | 480 x 854 pixels (218 ppi) |
| Screen-to-Body Ratio | 55.77% | 64.25% | 58.49% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | Stereo FM radio with RDS | FM radio with RDS |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592 x 1944 pixels | 8 MP, 3264 x 2448 pixels | 5 MP, 2592 х 1944 pixels |
| Flash | LED flash | LED flash | LED flash |
| Features | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, 3D Sweep Panorama, Image Stabilization | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization, HDR, Panorama | Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama |
| Video | Yes, 720p@30fps, video light | Yes, 1080p | 1080p@30fps |
| Front Camera | Yes, VGA [Similar] | Yes [Similar] | VGA [Similar] |
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| GPRS | Up to 107 kbps | Up to 86 kbps | Up to 85.6 kbps |
| Edge | Up to 296 kbps | Up to 237 kbps | Up to 237 kbps |
| 3G | HSDPA 14.4 Mbps, HSUPA 5.76 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSPA 21.1/5.76 Mbps |
| Bluetooth | Yes, v2.1 with A2DP, EDR | Yes, v4.0 with A2DP | v4.0, A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot, DLNA | Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot |
| USB | Yes, microUSB v2.0, USB On-the-go support | Yes, microUSB v2.0, USB On-the-go | microUSB v2.0, USB On-the-go, USB Host |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support and GLONASS | Yes, with A-GPS, GLONASS |
| Browser | HTML5, Adobe Flash | HTML5 | HTML5 |
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| Internal | 8 GB (4 GB user-accessible), 512 MB RAM | 8 GB ROM, 1 GB RAM | 4 GB, 1 GB RAM |
| Expandable Storage | No | microSD, up to 32 GB | microSD, up to 32 GB |
| USB OTG | Supported | 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 | Standard battery, Li-Ion | Li-Ion Battery | Li-Ion Battery |
| Capacity | 1320 mAh | 2300 mAh | 2330 mAh |
| Stand by | Up to 260 h (2G) Up to 472 h (3G) |
Up to 588 h (2G) Up to 633 h (3G) |
Up to 508 h (2G) Up to 505 h (3G) |
| Talk Time | Up to 6 h 36 min (2G) Up to 5 h 36 min (3G) |
Up to 13 h 25 min (2G) Up to 14 h 36 min (3G) |
Up to 12 h 20 min (2G) Up to 8 h 41 min (3G) |
