Phone Comparison - Karbonn Smart A12 Star vs Karbonn Smart A11 Star vs Xiaomi Mi 3
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| Manufacturer | Karbonn | Karbonn | Xiaomi |
| Announced | June 2014 | June 2014 | September 2013 |
| Status | Available - June 2014 | Available - June 2014 | Available - December 2013 |
| Colors | White, Black | White, Black | Various |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
124.2 x 64.2 x 10.1 mm (4.89 x 2.53 x 0.4 in) |
129.9 x 69 x 9.4 mm (5.11 x 2.72 x 0.37 in) |
144 x 73.6 x 8.1 mm (5.67 x 2.9 x 0.32 in) |
| Weight | 130 g (4.59 oz) | 120 g (4.23 oz) | 145 g (5.11 oz) |
| 2G Network | GSM 900 / 1800 - SIM 1 & SIM 2 | GSM 900 / 1800 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 2100 | HSDPA 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Android OS, v4.4.2 (KitKat) | Android OS, v4.4.2 (KitKat) | Android OS, v4.4 (KitKat) optimized with MIUI version 5 |
| Processor | Dual-core 1.2 GHz, MTK 6572 | Dual-core 1.2 GHz, MTK 6572 | Quad-core 2.3 GHz Krait 400, Qualcomm MSM8274AB Snapdragon 800 |
| GPU | Mali-400MP | Mali-400MP | Adreno 330 |
| RAM | 512 MB | 512 MB | 2 GB |
| Internal Memory | 4 GB (2.4 GB internal storage) | 4 GB (2.4 GB internal storage) | 16/64 GB |
| External Memory | microSD, up to 32 GB | microSD, up to 32 GB | No |
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| Type | IPS LCD Capacitive Touchscreen, Wide Viewing Angle | IPS LCD Capacitive Touchscreen, Wide Viewing Angle | IPS LCD capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.0 inches | 4.3 inches | 5.0 inches |
| Resolution | 480 x 800 pixels (233 ppi) | 480 x 800 pixels (217 ppi) | 1080 x 1920 pixels (441 ppi) |
| Screen-to-Body Ratio | 57.23% | 58.70% | 64.90% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | FM radio | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592х1944 pixels | 5 MP, 2592х1944 pixels | 13 MP, 4128 x 3096 pixels |
| Flash | LED flash | LED flash | dual-LED flash |
| Features | Geo-tagging, Face Detection, Panorama | Auto-focus, Geo-tagging, Face Detection, Panorama | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization, HDR |
| Video | Yes, 720p | Yes, 720p | 1080p@30fps, HDR |
| Front Camera | Yes, VGA [Similar] | Yes, VGA [Similar] | 2 MP, 1080p@30fps [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 | DC-HSDPA, 42 Mbps; HSDPA, 21 Mbps; HSUPA, 5.76 Mbps |
| Bluetooth | Yes, v2.0 A2DP, EDR | Yes, v2.0 A2DP, EDR | v4.0, A2DP |
| 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 a/b/g/n/ac, dual-band, Wi-Fi Direct, Wi-Fi hotspot |
| USB | Yes, microUSB v2.0 | Yes, microUSB v2.0 | microUSB v2.0 (MHL), USB On-the-go |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support | Yes, with A-GPS, GLONASS |
| Browser | HTML | HTML | HTML5 |
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| Internal | 4 GB (2.4 GB internal storage), 512 MB RAM | 4 GB (2.4 GB internal storage), 512 MB RAM | 16/64 GB, 2 GB RAM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 32 GB | No |
| USB OTG | - | - | 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 | Non-removable Li-Ion Battery |
| Capacity | 1400 mAh | 1400 mAh | 3050 mAh |
| Stand by | Up to 300 h (2G) | Up to 250 h (2G) | Up to 500 h |
| Talk Time | - | - | Up to 4 h |
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