Phone Comparison - Micromax A57 Ninja 3.0 vs Micromax A89 Ninja vs Samsung GALAXY Pocket Neo Duos S5312
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| Manufacturer | Micromax | Micromax | Samsung |
| Announced | September 2012 | February 2013 | April 2013 |
| Status | Available - September 2012 | Available - February 2013 | Available - May 2013 |
| Colors | Black | Black | White, Black, Silver |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
116 x 62 x 11.5 mm (4.57 x 2.44 x 0.45 in) |
116 x 62 x 11.5 mm (4.57 x 2.44 x 0.45 in ) |
105 x 57.8 x 11.8 mm (4.13 x 2.28 x 0.46 in) |
| Weight | 93.8 g (3.28.0.28 oz) | 95 g (3.35 oz) | 100.5 g (3.53.0.18 oz) |
| 2G Network | GSM 900 / 1800 - SIM 1 & SIM 2 | GSM 900 / 1800 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 2100 - SIM 1 only | HSDPA 2100 | HSDPA 900 / 2100 |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
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| OS | Android OS, v2.3.5 (Gingerbread) | Android OS, v4.0.4 (Ice Cream Sandwich) | Android OS, v4.1.2 (Jelly Bean) |
| Processor | 1 GHz | Dual-core 1 GHz | 850 MHz Cortex A-9 |
| GPU | Adreno 200 | - | - |
| RAM | 512 MB | 512 MB | 512 MB |
| Internal Memory | N/A | 2 GB | 4 GB |
| 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 capacitive touchscreen | TFT capacitive touchscreen |
| Colors | 256K colors | 256K colors | 262K colors |
| Size | 3.5 inches | 3.97 inches | 3.0 inches |
| Resolution | 320 x 480 pixels (165 ppi) | 480 x 800 pixels (235 ppi) | 240 x 320 pixels (133 ppi) |
| Screen-to-Body Ratio | 50.61% | 62.38% | 46.15% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | FM radio | Stereo FM radio with RDS, FM r |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 3.15 MP, 2048x1536 pixels | 3.15 MP, 2048x1536 pixels | 2 MP, 1600x1200 pixels |
| Flash | No | No | No |
| Features | Geo-tagging | - | Fixed Focus, CMOS Sensor |
| Video | Yes | Yes, VGA | Yes, QVGA@15fps |
| Front Camera | No [Similar] | No [Similar] | No [Similar] |
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| GPRS | Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps | Yes | Yes |
| Edge | Class 12 | Yes | Yes |
| 3G | HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps | HSDPA, HSUPA | HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps |
| Bluetooth | Yes, v2.0 | Yes, v2.1 | Yes, v4.0 |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Yes | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot |
| USB | Yes, microUSB v2.0 | Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| GPS | Yes | Yes | Yes, with A-GPS support and GLONASS |
| Browser | HTML | HTML | HTML |
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| Internal | 512 MB RAM, 256 MB ROM | 2 GB, 512 MB RAM | 4 GB, 512 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 | 1400 mAh | 1450 mAh | 1200 mAh |
| Stand by | Up to 145 h | Up to 170 h | Up to 300 h |
| Talk Time | Up to 4 h | Up to 4 h | Up to 6 h |
