Phone Comparison - Samsung Galaxy Ace Duos vs Nokia Lumia 630 Dual SIM vs Micromax Unite 2 A106
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| Manufacturer | Samsung | Nokia | Micromax |
| Announced | May 2012 | April 2014 | May 2014 |
| Status | Available - June 2012 | Available - May 2014 | Available - May 2014 |
| Colors | Black | Green, yellow, white, black | Pristine White, Balmy Green, Mystic Grey, Raging Red |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
112.7 x 61.5 x 11.5 mm (4.44 x 2.42 x 0.45 in) |
129.5 x 66.7 x 9.2 mm (5.1 x 2.63 x 0.36 in) |
138.9 x 71.9 x 9.4 mm (5.47 x 2.83 x 0.37 in) |
| Weight | 122 g (4.3 oz) | 134 g (4.73 oz) | 158.5 g (5.57.0.18 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 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 900 / 2100 | HSDPA 2100 |
| Messaging | SMS, MMS | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
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| OS | Android OS, v2.3 (Gingerbread) | Microsoft Windows Phone 8.1 | Android OS, v4.4.2 (KitKat) |
| Processor | 832 MHz | Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 | Quad-core 1.3 GHz, Mediatek MT6582M |
| GPU | - | Mali-400MP2 | |
| RAM | N/A | 512 MB | 1 GB |
| Internal Memory | 3 GB storage, 512 MB | 8 GB ROM | 4/8 GB (0.89 GB for apps, 1.67 GB for mass storage) |
| External Memory | microSD, up to 32 GB | microSD, up to 128 GB | microSD, up to 32 GB |
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| Type | TFT capacitive touchscreen | IPS LCD Capacitive Touchscreen | IPS LCD Capacitive Touchscreen |
| Colors | 16M colors | 16M colors | 16.7M colors |
| Size | 3.5 inches | 4.5 inches | 4.7 inches |
| Resolution | 320 x 480 pixels (165 ppi) | 480 x 854 pixels (218 ppi) | 480 x 800 pixels (199 ppi) |
| Screen-to-Body Ratio | 52.52% | 64.43% | 62.64% |
| 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 + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592x1944 pixels | 5 MP, 2592 х 1944 pixels | 5 MP, 2592x1944 pixels |
| Flash | No | No | LED flash |
| Features | Auto focus, Geo-tagging | Auto focus, 1/4' Sensor Size, Geo-tagging, Panorama | Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR |
| Video | Yes | Yes, 720p@30fps | Yes, 1080p |
| Front Camera | No [Similar] | No [Similar] | Yes, 2 MP, 720p [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 7.2 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, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot |
| USB | Yes, microUSB v2.0 | Yes, microUSB v2.0 | Yes, microUSB v2.0, USB On-the-go |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support and GLONASS | Yes, with A-GPS support |
| Browser | HTML | HTML5 | HTML5 |
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| Internal | 3GB storage, 512 MB | 8 GB ROM, 512 MB RAM | 4/8 GB (0.89 GB for apps, 1.67 GB for mass storage), 1 GB RAM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 128 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 (BL-5H) | Li-Ion Battery |
| Capacity | 1300 mAh | 1830 mAh | 2000 mAh |
| Stand by | Up to 520 h (2G) Up to 410 h (3G) |
Up to 648 h | Up to 190 h |
| Talk Time | Up to 6 h 30 min (2G) Up to 16 h 40 min (3G) |
Up to 16 h 24 min (2G) Up to 13 h 6 min (3G) |
Up to 8 h |
