Phone Comparison - Karbonn A25 vs Panasonic T31 vs Karbonn Titanium S5i
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| Manufacturer | Karbonn | Panasonic | Karbonn |
| Announced | May 2013 | October 2013 | January 2014 |
| Status | Available - May 2013 | Available - November 2013 | Available - January 2014 |
| Colors | White, Black | Bluish Black, Pure White | Deep Blue, Pearl White |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension | - |
122 x 64.4 x 11.95 mm (4.8 x 2.54 x 0.47 in) |
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| Weight | - | 120 g (4.23 oz) | - |
| 2G Network | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 900 / 1800 - SIM 1 & SIM 2 |
| 3G Network | No | HSDPA 850 / 1900 / 2100 | HSDPA 2100 |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Android OS, v4.0 (Ice Cream Sandwich) | Android OS, v4.2.2 (Jelly Bean) with FOTA upgrade | Android OS, v4.2.2 (Jelly Bean) |
| Processor | Dual-core 1 GHz | Dual-core 1.3 GHz, MTK 6572 | Dual-core 1 GHz |
| GPU | - | Mali-400 | - |
| RAM | 512 MB | 512 MB | 512 MB |
| Internal Memory | 512 MB ROM | 4 GB (1.9 GB user memory) | N/A |
| 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 | - | 16M colors | 16M colors |
| Size | 5.0 inches | 4.0 inches | 5.0 inches |
| Resolution | 480 x 800 pixels (187 ppi) | 480 x 800 pixels (233 ppi) | 480 x 854 pixels (196 ppi) |
| Screen-to-Body Ratio | - | 58.08% | - |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | FM Radio with Recording | FM radio; FM recording |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592х1944 pixels | 3.2 MP, 2048x1536 pixels | 8 MP, 3264 x 2448 pixels |
| Flash | LED flash | No | LED flash |
| Features | Auto focus, Geo-tagging | Fixed Focus, Geo-tagging | Auto focus, Geo-tagging, Touch Focus |
| Video | Yes | Yes, VGA@30fps | Yes |
| Front Camera | Yes, VGA [Similar] | Yes, VGA [Similar] | Yes, VGA [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes, Class 12 | Yes | Yes |
| 3G | No | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps |
| Bluetooth | Yes, v3.0 | Yes, v4.0 with A2DP | Yes, with A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, 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 | Yes, with A-GPS support | Yes, with A-GPS support | Yes, with A-GPS support |
| Browser | HTML | HTML5 | HTML5 |
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| Internal | 512 MB ROM, 512 MB RAM | 4 GB (1.9 GB user memory), 512 MB RAM | 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 | 2000 mAh | 1300 mAh | 2000 mAh |
| Stand by | - | Up to 510 h (2G) Up to 400 h (3G) |
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| Talk Time | - | Up to 3 h 30 min (2G) Up to 9 h 30 min (3G) |
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