Phone Comparison - Karbonn A1+ Duple vs Micromax Bolt A47 vs Karbonn A91
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| Manufacturer | Karbonn | Micromax | Karbonn |
| Announced | November 2013 | December 2013 | January 2014 |
| Status | Available - November 2013 | Available - December 2013 | Available - January 2014 |
| Colors | Black, White | White | White, Black, Pink |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension | - |
125.3 x 65.5 x 12.3 mm (4.93 x 2.58 x 0.48 in) |
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| Weight | - | - | - |
| 2G Network | GSM 900 / 1800 - SIM 1 & SIM 2 | GSM 900 / 1800 - SIM 1 & SIM 2 | GSM 900 / 1800 - SIM 1 & SIM 2 |
| 3G Network | No | No | No |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
| Build Features | - | - | Swipe Gesture |
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| OS | Android OS, v4.2 (Jelly Bean) | Android OS, v4.2.2 (Jelly Bean) | Android OS, v4.2.2 (Jelly Bean) |
| Processor | Dual-core 1.3 GHz | Dual-core 1.3 GHz, MTK 6572 | Dual-core 1.3 GHz, MTK 6572 |
| GPU | - | Mali-400 | Mali-400MP |
| RAM | 256 MB | 256 MB | 256 MB |
| Internal Memory | 512 MB ROM | 512 MB (161 MB for Apps, 14.4 MB for Mass Storage) | 512 MB ROM |
| 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 | IPS LCD Capacitive Touchscreen | TFT Capacitive Touchscreen |
| Colors | 16M colors | 16.7M colors | 16M colors |
| Size | 3.5 inches | 4.0 inches | 4.0 inches |
| Resolution | 320 x 480 pixels (165 ppi) | 480 x 800 pixels (233 ppi) | 480 x 800 pixels (233 ppi) |
| Screen-to-Body Ratio | - | 55.60% | - |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio with Recording | FM Radio with Recording | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 3 MP, 2048x1536 pixels | 2 MP, 1600x1200 pixels | 3.2 MP, 2048x1536 pixels |
| Flash | LED flash | LED flash | No |
| Features | Fixed Focus, Face Detection | Fixed Focus, Geo-tagging, Multi-shot, Night Mode | Geo-tagging |
| Video | Yes | Yes, 480p@30fps | Yes, 720p |
| Front Camera | Yes, VGA [Similar] | Yes, VGA [Similar] | Yes, VGA [Similar] |
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| GPRS | Yes | Yes, Class 12 | Yes |
| Edge | Yes | Yes, Class 12 | Yes |
| 3G | No | No | No |
| Bluetooth | Yes, with A2DP | Yes, v4.0 A2DP, EDR | Yes, v2.0 A2DP, EDR |
| 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 | Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support | No | No |
| Browser | HTML | HTML5 | HTML |
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| Internal | 512 MB ROM, 256 MB RAM | 512 MB (161 MB for Apps, 14.4 MB for Mass Storage), 256 MB RAM | 512 MB ROM, 256 MB RAM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 32 GB | microSD, up to 32 GB |
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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 | 1300 mAh | 1600 mAh | 1500 mAh |
| Stand by | - | Up to 180 h | - |
| Talk Time | - | Up to 6 h | - |
