Phone Comparison - Micromax A91 Ninja vs Micromax Bolt A40 vs Micromax Unite A092
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| Manufacturer | Micromax | Micromax | Micromax |
| Announced | April 2013 | September 2013 | June 2014 |
| Status | Available - April 2013 | Available - September 2013 | Available - June 2014 |
| Colors | Black | Black | PristineWhite, ClassyBlack, Mystic Grey, Vibrant Yellow, Fiery R |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
130 x 66 x 10 mm (5.12 x 2.6 x 0.39 in) |
- | - |
| Weight | - | - | - |
| 2G Network | GSM 900 / 1800 / 2100 - SIM 1 & SIM 2 | GSM 900 / 1800 - SIM 1 & SIM 2 | GSM 900 / 1800 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 2100 - SIM 1 only | No | HSDPA 2100 |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
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| OS | Android OS, v4.0 (Ice Cream Sandwich) | Android OS, v2.3.5 (Gingerbread) | Android OS, v4.3 (Jelly Bean) |
| Processor | Dual-core 1 GHz Cortex-A9, MediaTek MT6577 | 1 GHz Cortex-A5, Spreadtrum SC6820 | Quad-core 1.2 GHz, Qualcomm MSM8212 Snapdragon 200 |
| GPU | PowerVR SGX531 | Mali-400 | Adreno 302 |
| RAM | N/A | 512 MB | 1 GB |
| Internal Memory | 4 GB (2 GB user available), 512 MB | 512 MB (75 MB user available) | 8 GB (2.99 GB 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 | TFT touchscreen | IPS LCD Capacitive Touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.5 inches | 4.5 inches | 4.0 inches |
| Resolution | 480 x 854 pixels (218 ppi) | 480 x 854 pixels (218 ppi) | 480 x 800 pixels (233 ppi) |
| Screen-to-Body Ratio | 64.86% | - | - |
| 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 | 5 MP, 2592х1944 pixels | 2 MP, 1600x1200 pixels | 5 MP, 2592х1944 pixels |
| Flash | LED flash | LED Flash | LED Flash |
| Features | Auto focus, Geo-tagging, Touch Focus, Face Detection | Fixed Focus, Geo-tagging | Fixed focus, Geo-tagging, Panorama |
| Video | Yes | Yes, 480p | Yes, 480p |
| Front Camera | Yes, VGA [Similar] | Yes, VGA [Similar] | Yes, VGA [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA 21 Mbps, HSUPA 5.76 Mbps | No | HSDPA, 21 Mbps; HSUPA, 11 Mbps |
| Bluetooth | Yes, v3.0 with A2DP | Yes, 2.1 | Yes, v4.0 |
| 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 Direct, Wi-Fi hotspot |
| USB | Yes, microUSB v2.0, USB On-the-go | Yes | Yes, microUSB v2.0, USB On-the-go |
| GPS | Yes, with A-GPS support | No | Yes, with A-GPS support |
| Browser | HTML5 | HTML | HTML5 |
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| Internal | 4 GB (2 GB user available), 512 MB | 512 MB (75 MB user available), 512 MB RAM | 8 GB (2.99 GB for mass storage), 1 GB RAM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 32 GB | microSD, up to 32 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 | Li-Ion Battery | Li-Ion Battery |
| Capacity | 1800 mAh | 1500 mAh | 1500 mAh |
| Stand by | - | Up to 175 h | Up to 140 h |
| Talk Time | - | Up to 4 h 30 min | Up to 5 h 30 min |
