Phone Comparison - Micromax Bolt A58 vs Karbonn A12+ vs Micromax Canvas Juice A77
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| Manufacturer | Micromax | Karbonn | Micromax |
| Announced | October 2013 | October 2013 | November 2013 |
| Status | Available - October 2013 | Available - October 2013 | Available - November 2013 |
| Colors | Midnight Black, Raging Red | White, Black | Black, White |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension | - | - |
150.5 x 76.2 x 10.2 mm (5.93 x 3 x 0.4 in) |
| Weight | - | - | 195 g (6.88 oz) |
| 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 | HSDPA 2100 | HSDPA 2100 | HSDPA 2100 |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Android OS, v4.2.2 (Jelly Bean) | Android OS, v4.2.2 (Jelly Bean) | Android OS, v4.2.2 (Jelly Bean) |
| Processor | Dual-core 1.0 GHz, MTK 6572M | Dual-core 1.3 GHz, MTK 6572 | Dual-core 1.3 GHz, MTK 6572 |
| GPU | Mali-400 | Mali-400MP | Mali-400 |
| RAM | 512 MB | 512 MB | 1 GB |
| Internal Memory | 512 MB (90 MB for Apps) | 4 GB (1.27 GB for apps, 1.24 GB user available) | 4 GB (1.27 GB for apps, 672 MB for mass storage) |
| External Memory | microSD, up to 32 GB | microSD, up to 32 GB | microSD, up to 32 GB |
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| Type | TFT capacitive touchscreen | IPS LCD Capacitive Touchscreen, Wide Viewing Angle | TFT Capacitive Touchscreen |
| Colors | 262K colors | 16M colors | 16.7M colors |
| Size | 3.5 inches | 4.0 inches | 5.0 inches |
| Resolution | 320 x 480 pixels (165 ppi) | 480 x 800 pixels (233 ppi) | 480 x 854 pixels (196 ppi) |
| Screen-to-Body Ratio | - | - | 60.03% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | FM radio | FM Radio with Recording |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 2 MP, 1600x1200 pixels | 5 MP, 2592х1944 pixels | 5 MP, 2592х1944 pixels |
| Flash | No | LED flash | LED flash |
| Features | Fixed Focus | Auto-focus, Geo-tagging, Face Detection, Panorama | Auto focus, Geo-tagging, Touch Focus |
| Video | Yes, 720p@30fps | Yes, 720p | Yes, 720p@30fps |
| Front Camera | No [Similar] | Yes, 2 MP [Similar] | Yes, VGA [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 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, v2.0 A2DP, EDR | Yes, v4.0 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, microUSB v2.0 | Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| GPS | No | Yes, with A-GPS support | Yes, with A-GPS support |
| Browser | HTML | HTML | HTML5 |
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| Internal | 512 MB (90 MB for Apps), 512 MB RAM | 4 GB (1.27 GB for apps, 1.24 GB user available), 512 MB RAM | 4 GB (1.27 GB for apps, 672 MB for mass storage), 1 GB 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-Po Battery |
| Capacity | 1200 mAh | 1400 mAh | 3000 mAh |
| Stand by | Up to 200 h | - | Up to 282 h |
| Talk Time | Up to 4 h | - | Up to 10 h |
