Phone Comparison - Karbonn K451+ Sound Wave vs Karbonn K440
Karbonn K451+ Sound Wave.jpg)
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Karbonn K440.jpg)
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| Manufacturer | Karbonn | Karbonn |
| Announced | 2012 | 2012 |
| Status | Available | Available |
| Colors | Silver/Black | Black/White, Black/Red |
| Form Factor | Candybar | Candybar |
| Dimension |
116.5 x 51.9 x 14.6 mm (4.59 x 2.04 x 0.57 in) |
119.5 x 54 x 13.5 mm (4.7 x 2.13 x 0.53 in) |
| Weight | - | - |
| 2G Network | GSM 900 / 1800 - SIM 1 & SIM 2 | GSM 900 / 1800 - SIM 1 & SIM 2 |
| 3G Network | N/A | N/A |
| Messaging | SMS, MMS | SMS, MMS |
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| OS | - | - |
| Processor | - | - |
| GPU | - | - |
| RAM | N/A | N/A |
| Internal Memory | - | - |
| External Memory | microSD, up to 8 GB | microSD, up to 16 GB |
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| Type | TFT | TFT |
| Colors | 65K colors | 256K colors |
| Size | 2.4 inches [Similar] | 2.6 inches [Similar] |
| Resolution | 240 x 320 pixels (167 ppi) | 240 x 320 pixels (154 ppi) |
| Screen-to-Body Ratio | 29.38% | 32.38% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio; FM recording | FM radio; FM recording |
| Games | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 1.3 MP, 1280 x 1024 pixels [Similar] | 1.3 MP, 1280 x 1024 pixels [Similar] |
| Flash | No | No |
| Features | - | - |
| Video | Yes | Yes |
| Front Camera | No [Similar] | No [Similar] |
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| GPRS | Yes | Yes |
| Edge | No | No |
| 3G | N/A | N/A |
| Bluetooth | Yes | Yes |
| Wi-Fi | No | No |
| USB | Yes | Yes |
| GPS | No | No |
| Browser | Yes | Yes |
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| Phonebook | 500 entries | 1000 entries |
| Call Records | Yes | Yes |
| Internal | - | - |
| Expandable Storage | microSD, up to 8 GB | microSD, up to 16 GB |
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| Proximity Sensor | |
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| Accelerometer Sensor | |
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| Type | Li-Ion Battery | Li-Ion Battery |
| Capacity | 1800 mAh | 2100 mAh |
| Stand by | Up to 500 h | Up to 800 h |
| Talk Time | Up to 8 h | Up to 12 h |
