Phone Comparison - Karbonn A12+ vs Micromax Unite 2 A106 vs Nokia X2
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| Manufacturer | Karbonn | Micromax | Nokia |
| Announced | October 2013 | May 2014 | June 2014 |
| Status | Available - October 2013 | Available - May 2014 | Available - June 2014 |
| Colors | White, Black | Pristine White, Balmy Green, Mystic Grey, Raging Red | Bright green, bright red, cyan, yellow, black, white |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension | - |
138.9 x 71.9 x 9.4 mm (5.47 x 2.83 x 0.37 in) |
121.7 x 68.3 x 11.1 mm (4.79 x 2.69 x 0.44 in) |
| Weight | - | 158.5 g (5.57.0.18 oz) | 150 g (5.29 oz) |
| 2G Network | GSM 900 / 1800 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 2100 | HSDPA 2100 | HSDPA 900 / 2100 |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
| Build Features | - | - | - Scratch-resistant glass - ClearBlack display |
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| OS | Android OS, v4.2.2 (Jelly Bean) | Android OS, v4.4.2 (KitKat) | Nokia X Software Platform 2.0 Based on Android OS, v4.3 (Jelly Bean) |
| Processor | Dual-core 1.3 GHz, MTK 6572 | Quad-core 1.3 GHz, Mediatek MT6582M | Dual-core 1.2 GHz Cortex-A7, Qualcomm MSM8210 Snapdragon 200 |
| GPU | Mali-400MP | Mali-400MP2 | Adreno 302 |
| RAM | 512 MB | 1 GB | 1 GB |
| Internal Memory | 4 GB (1.27 GB for apps, 1.24 GB user available) | 4/8 GB (0.89 GB for apps, 1.67 GB for mass storage) | 4 GB |
| External Memory | microSD, up to 32 GB | microSD, up to 32 GB | microSD, up to 32 GB |
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| Type | IPS LCD Capacitive Touchscreen, Wide Viewing Angle | IPS LCD Capacitive Touchscreen | IPS LCD capacitive touchscreen |
| Colors | 16M colors | 16.7M colors | 16M colors |
| Size | 4.0 inches | 4.7 inches | 4.3 inches |
| Resolution | 480 x 800 pixels (233 ppi) | 480 x 800 pixels (199 ppi) | 480 x 800 pixels (217 ppi) |
| Screen-to-Body Ratio | - | 62.64% | 63.29% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | FM Radio with Recording | Stereo FM Radio with RDS |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592х1944 pixels | 5 MP, 2592x1944 pixels | 5 MP, 2592 х 1944 pixels |
| Flash | LED flash | LED flash | LED Flash |
| Features | Auto-focus, Geo-tagging, Face Detection, Panorama | Auto focus, Geo-tagging, Touch Focus, Face Detection, HDR | 1/4'' Sensor Size, Geo-tagging, Touch Focus, Panorama, Face Detection |
| Video | Yes, 720p | Yes, 1080p | Yes, 720p@30fps |
| Front Camera | Yes, 2 MP [Similar] | Yes, 2 MP, 720p [Similar] | Yes, VGA, 480p [Similar] |
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| GPRS | Yes | Yes | Up to 85.6 kbps |
| Edge | Yes | Yes | Up to 236.8 kbps |
| 3G | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps |
| Bluetooth | Yes, v2.0 A2DP, EDR | Yes, v4.0 with A2DP | Yes, v4.0 with A2DP, HS |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot |
| USB | Yes, microUSB v2.0 | Yes, microUSB v2.0, USB On-the-go | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support | Yes, with A-GPS support |
| Browser | HTML | HTML5 | HTML |
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| Internal | 4 GB (1.27 GB for apps, 1.24 GB user available), 512 MB RAM | 4/8 GB (0.89 GB for apps, 1.67 GB for mass storage), 1 GB RAM | 4 GB, 1 GB RAM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 32 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 | Li-Ion Battery | Li-Ion Battery | Li-Ion Battery |
| Capacity | 1400 mAh | 2000 mAh | 1800 mAh |
| Stand by | - | Up to 190 h | Up to 552 h |
| Talk Time | - | Up to 8 h | Up to 10 h (2G) Up to 13 h (3G) |
