Phone Comparison - Karbonn A4 vs Alcatel One Touch Fire C vs Google Nexus 9
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| Manufacturer | Karbonn | Alcatel | HTC |
| Announced | March 2013 | February 2014 | October 2014 |
| Status | Available - March 2013 | Coming Soon - Q1 2014 | Available - October 2014 |
| Colors | White/Black | Orange | Indigo Black, Lunar White, Sand |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
124.8 x 66 x 9.5 mm (4.91 x 2.6 x 0.37 in) |
112.2 x 62 x 12 mm (4.42 x 2.44 x 0.47 in) |
228.25 x 153.68 x 7.95 mm (8.99 x 6.05 x 0.31 in) |
| Weight | 75 g (2.65 oz) | 100 g (3.53 oz) | 425 g / 436 g (14.99 oz / 15.38 oz) |
| 2G Network | GSM 900 / 1800 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | N/A | HSDPA 900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | - | - | LTE 800 / 1800 / 2600 |
| Messaging | SMS, MMS, EMail, IM | SMS, EMail, IM | SMS, MMS, EMail, IM |
| Build Features | - | - | Dual front-facing speakers with HTC BoomSound |
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| OS | Android OS, v2.3.6 (Gingerbread) | Firefox OS 1.3 | Android OS, v5.0 (Lollipop) |
| Processor | 1 GHz | Dual-core 1.2 GHz | Quad-core 2.2 GHz Cortex-A15, Nvidia Tegra K1 |
| GPU | - | - | ULP GeForce Kepler (192 cores) |
| RAM | 256 MB | 512 MB | 2 GB |
| Internal Memory | 104 MB | 4 GB | 16/32 GB |
| External Memory | microSD, up to 32 GB | microSD, up to 32 GB | No |
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| Type | TFT capacitive touchscreen | TFT capacitive touchscreen | IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3 |
| Colors | 256K colors | 256K colors | 16M colors |
| Size | 4.0 inches | 3.5 inches | 8.9 inches |
| Resolution | 320 x 480 pixels (144 ppi) | 320 x 480 pixels (165 ppi) | 2048 x 1536 pixels (288 ppi) |
| Screen-to-Body Ratio | 58.02% | 52.32% | 69.76% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | Stereo FM radio with RDS | No |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 3.2 MP, 2048x1536 pixels | VGA, 640x480 pixels | 8 MP, 3264 x 2448 pixels |
| Flash | No | No | LED flash |
| Features | Face Detection | Geo-tagging | Auto focus, Geo-tagging, Touch Focus, Face Detection, OIS |
| Video | Yes | Yes, VGA@30fps | Yes, 1080p@30fps |
| Front Camera | Yes, VGA [Similar] | No [Similar] | Yes, 1.6 MP [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | No | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL |
| Bluetooth | Yes | Yes | Yes, v4.0 with 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, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot |
| USB | Yes | Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| GPS | No | Yes, with A-GPS support | Yes, with A-GPS support and GLONASS |
| Browser | HTML | HTML | HTML5 |
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| Internal | 104 MB, 256 MB RAM, 512 MB ROM | 4 GB, 512 MB RAM | 16/32 GB, 2 GB RAM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 32 GB | No |
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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-Po battery |
| Capacity | 1400 mAh | 1300 mAh | 6700 mAh |
| Stand by | Up to 250 h | Up to 433 h (2G) Up to 325 h (3G) |
Up to 720 h |
| Talk Time | Up to 4 h 10 min | Up to 6 h 40 min (2G) Up to 2 h 40 min (3G) |
Up to 9 h 30 min |
