Phone Comparison - Karbonn A12+ vs Nokia Lumia 2520 vs Samsung Galaxy Note Pro 12.2 LTE
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| Manufacturer | Karbonn | Nokia | Samsung |
| Announced | October 2013 | October 2013 | January 2014 |
| Status | Available - October 2013 | Coming Soon - Q4 2013 | Coming soon |
| Colors | White, Black | Cyan , Red, Black, White | Black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension | - |
267 x 168 x 8.9 mm (10.51 x 6.61 x 0.35 in) |
295.6 x 204 x 8 mm (11.64 x 8.03 x 0.31 in) |
| Weight | - | 615 g (21.69 oz) | 753 g (26.56 oz) |
| 2G Network | GSM 900 / 1800 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 2100 | HSDPA 850 / 900 / 1800 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | - | LTE 800 / 1800 / 2600 | LTE |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Android OS, v4.2.2 (Jelly Bean) | Microsoft Windows RT | Android OS, v4.4 (KitKat) |
| Processor | Dual-core 1.3 GHz, MTK 6572 | Quad-core 2.2 GHz Krait 400, Qualcomm MSM8974 Snapdragon 800 | Quad-core 2.3 GHz Krait 400, Qualcomm Snapdragon 800 |
| GPU | Mali-400MP | Adreno 330 | Adreno 330 |
| RAM | 512 MB | 2 GB | 3 GB |
| Internal Memory | 4 GB (1.27 GB for apps, 1.24 GB user available) | 32 GB | 32/64 GB |
| External Memory | microSD, up to 32 GB | microSD, up to 32 GB | microSD, up to 64 GB |
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| Type | IPS LCD Capacitive Touchscreen, Wide Viewing Angle | IPS LCD capacitive touchscreen | Super clear LCD capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.0 inches | 10.1 inches | 12.2 inches |
| Resolution | 480 x 800 pixels (233 ppi) | 1080 x 1920 pixels (218 ppi) | 2560 x 1600 pixels (247 ppi) |
| Screen-to-Body Ratio | - | 62.76% | 71.83% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | No | - |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592х1944 pixels | 6.7 MP, 3088 x 1744 pixels | 8 MP, 3264x2448 pixels |
| Flash | LED flash | Carl Zeiss optics | LED flash |
| Features | Auto-focus, Geo-tagging, Face Detection, Panorama | 1/3.4' Sensor Size | Auto focus, Geo-tagging, Face And Smile Detection |
| Video | Yes, 720p | Yes, 1080p@30fps | Yes, 1080p@60fps |
| Front Camera | Yes, 2 MP [Similar] | Yes, 2 MP, 720p [Similar] | Yes, 2 MP, 1080p@30fps [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Up to 236.8 kbps | Yes |
| 3G | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 42.2 Mbps, HSUPA, 11.5 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL | HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL |
| Bluetooth | Yes, v2.0 A2DP, EDR | Yes, v4.0 | Yes, v4.0 with A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct, dual-band, Wi-Fi hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, Wi-Fi hotspot |
| USB | Yes, microUSB v2.0 | Yes, USB v3.0, USB Host support | Yes, microUSB v3.0, USB Host |
| GPS | Yes, with A-GPS support | 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 (1.27 GB for apps, 1.24 GB user available), 512 MB RAM | 32 GB, 2 GB RAM | 32/64 GB, 3 GB RAM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 32 GB | microSD, up to 64 GB |
| USB OTG | - | 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 | Li-Ion Battery | Non-removable Battery | Non-removable Li-Ion Battery |
| Capacity | 1400 mAh | 8000 mAh | 9500 mAh |
| Stand by | - | Up to 600 h | - |
| Talk Time | - | Up to 10 h | - |
