Phone Comparison - Samsung Galaxy Ace 2 vs Sony Xperia M2 vs Nokia Lumia 635
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| Manufacturer | Samsung | Sony | Nokia |
| Announced | February 2012 | February 2014 | April 2014 |
| Status | Available - May 2012 | Available - May 2014 | Available - May 2014 |
| Colors | Black | Black, White, Purple | Orange, Yellow, White, Black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
118.3 x 62.2 x 10.5 mm (4.66 x 2.45 x 0.41 in) |
139.6 x 71.1 x 8.6 mm (5.5 x 2.8 x 0.34 in) |
129.5 x 66.7 x 9.2 mm (5.1 x 2.63 x 0.36 in) |
| Weight | 122 g (4.3 oz) | 148 g (5.22 oz) | 134 g (4.73 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 900 / 2100 | HSDPA | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | - | - | LTE |
| 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 | Android OS, v4.3 (Jelly Bean) | Microsoft Windows Phone 8.1 |
| Processor | Dual-core 800 MHz, NovaThor U8500 | Quad-core 1.2 GHz Cortex-A7, Qualcomm MSM8926 Snapdragon 400 (D2303, D2306)/ MSM8226 (D2305) | Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 |
| GPU | Mali-400MP | Adreno 305 | Adreno 305 |
| RAM | 768 MB | 1 GB | 512 MB |
| Internal Memory | 4 GB storage | 8 GB ROM | 8 GB |
| External Memory | microSD, up to 32GB | microSD, up to 32 GB | microSD, up to 64 GB |
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| Type | PLS TFT capacitive touchscreen | TFT Capacitive Touchscreen | IPS LCD capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 3.8 inches | 4.8 inches | 4.5 inches |
| Resolution | 480 x 800 pixels (246 ppi) | 540 x 960 pixels (229 ppi) | 480 x 854 pixels (218 ppi) |
| Screen-to-Body Ratio | 55.64% | 64.25% | 64.43% |
| 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 | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592x1944 pixels | 8 MP, 3264 x 2448 pixels | 5 MP, 2592 х 1944 pixels |
| Flash | LED flash | LED flash | No |
| Features | Auto focus, Geo-tagging, Face And Smile Detection | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization, HDR, Panorama | Geo-tagging |
| Video | Yes, 720p@30fps | Yes, 1080p | Yes, 720p@30fps |
| Front Camera | Yes, VGA [Similar] | Yes [Similar] | No [Similar] |
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| GPRS | Yes | Up to 86 kbps | Yes |
| Edge | Yes | Up to 237 kbps | Yes |
| 3G | HSDPA, 14.4 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 100 Mbps DL |
| 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 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n |
| USB | Yes, v2.0 microUSB | Yes, microUSB v2.0, USB On-the-go | Yes, microUSB v2.0 |
| 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 ROM, 1 GB RAM | 8 GB, 512 MB RAM |
| Expandable Storage | microSD, up to 32GB | microSD, up to 32 GB | microSD, up to 64 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 | 2300 mAh | 1830 mAh |
| Stand by | Up to 670 h (2G) Up to 640 h (3G) |
Up to 588 h (2G) Up to 633 h (3G) |
Up to 648 h |
| Talk Time | Up to 16 h 20 min (2G) Up to 7 h 30 min (3G) |
Up to 13 h 25 min (2G) Up to 14 h 36 min (3G) |
Up to 12 h (2G) Up to 14 h (3G) |
