Phone Comparison - Samsung Galaxy Ace 2 vs Nokia Lumia 520 vs Sony Xperia M2
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| Manufacturer | Samsung | Nokia | Sony |
| Announced | February 2012 | February 2013 | February 2014 |
| Status | Available - May 2012 | Available - April 2013 | Available - May 2014 |
| Colors | Black | Yellow, red, cyan, white/black | Black, White, Purple |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
118.3 x 62.2 x 10.5 mm (4.66 x 2.45 x 0.41 in) |
119.9 x 64 x 9.9 mm (4.72 x 2.52 x 0.39 in) |
139.6 x 71.1 x 8.6 mm (5.5 x 2.8 x 0.34 in) |
| Weight | 122 g (4.3 oz) | 124 g (4.37 oz) | 148 g (5.22 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 900 / 2100 | HSDPA 900 / 2100 HSDPA 850 / 1900 / 2100 |
HSDPA |
| Messaging | SMS, MMS, 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 | Microsoft Windows Phone 8 | Android OS, v4.3 (Jelly Bean) |
| Processor | Dual-core 800 MHz, NovaThor U8500 | Dual-core 1 GHz, Qualcomm MSM8227 Snapdragon S4 | Quad-core 1.2 GHz Cortex-A7, Qualcomm MSM8926 Snapdragon 400 (D2303, D2306)/ MSM8226 (D2305) |
| GPU | Mali-400MP | Adreno 305 | Adreno 305 |
| RAM | 768 MB | 512 MB | 1 GB |
| Internal Memory | 4 GB storage | 8 GB storage | 8 GB ROM |
| External Memory | microSD, up to 32GB | microSD, up to 64 GB | microSD, up to 32 GB |
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| Type | PLS TFT capacitive touchscreen | IPS LCD capacitive touchscreen | TFT Capacitive Touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 3.8 inches | 4.0 inches | 4.8 inches |
| Resolution | 480 x 800 pixels (246 ppi) | 480 x 800 pixels (233 ppi) | 540 x 960 pixels (229 ppi) |
| Screen-to-Body Ratio | 55.64% | 59.47% | 64.25% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | FM Radio | Stereo FM radio with RDS |
| Games | Yes | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592x1944 pixels | 5 MP, 2592х1944 pixels | 8 MP, 3264 x 2448 pixels |
| Flash | LED flash | No | LED flash |
| Features | Auto focus, Geo-tagging, Face And Smile Detection | Auto focus, Geo-tagging | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization, HDR, Panorama |
| Video | Yes, 720p@30fps | Yes, 720p@30fps | Yes, 1080p |
| Front Camera | Yes, VGA [Similar] | No [Similar] | Yes [Similar] |
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| GPRS | Yes | Yes | Up to 86 kbps |
| Edge | Yes | Yes | Up to 237 kbps |
| 3G | HSDPA, 14.4 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps |
| Bluetooth | Yes, v3.0 with A2DP | Yes, v4.0 with A2DP | Yes, v4.0 with A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot |
| USB | Yes, v2.0 microUSB | Yes, microUSB v2.0 | Yes, microUSB v2.0, USB On-the-go |
| GPS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS support and GLONASS |
| Browser | HTML | HTML5 | HTML5 |
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| Internal | 4 GB storage, 768 MB RAM | 8 GB storage, 512 MB RAM | 8 GB ROM, 1 GB RAM |
| Expandable Storage | microSD, up to 32GB | microSD, up to 64 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-Ion | Li-Ion Battery | Li-Ion Battery |
| Capacity | 1500 mAh | 1430 mAh | 2300 mAh |
| Stand by | Up to 670 h (2G) Up to 640 h (3G) |
Up to 384 h (3G) Up to 360 h (3G) |
Up to 588 h (2G) Up to 633 h (3G) |
| Talk Time | Up to 16 h 20 min (2G) Up to 7 h 30 min (3G) |
Up to 17 h 24 min (2G) Up to 9 h 42 min (3G) |
Up to 13 h 25 min (2G) Up to 14 h 36 min (3G) |
