Phone Comparison - Nokia Asha 501 Dual SIM vs Karbonn A12+ vs Celkon AR40
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| Manufacturer | Nokia | Karbonn | Celkon |
| Announced | May 2013 | October 2013 | October 2013 |
| Status | Available - June 2013 | Available - October 2013 | Available - October 2013 |
| Colors | Bright Red, Bright Green, Cyan, Yellow, White and Black | White, Black | Yellow |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
99.2 x 58 x 12.1 mm (3.91 x 2.28 x 0.48 in) |
- |
126.2 x 64 x 10.8 mm (4.97 x 2.52 x 0.43 in) |
| Weight | 91 g (3.21 oz) | - | 126.5 g (4.44.0.18 oz) |
| 2G Network | GSM 900 / 1800 - SIM 1 & SIM 2 | GSM 900 / 1800 - SIM 1 & SIM 2 | GSM 900 / 1800 - SIM 1 & SIM 2 |
| 3G Network | N/A | HSDPA 2100 | HSDPA 2100 |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Nokia Asha software platform 1.0 | Android OS, v4.2.2 (Jelly Bean) | Android OS, v4.2.2 (Jelly Bean) |
| Processor | - | Dual-core 1.3 GHz, MTK 6572 | Dual-core 1.2 GHz, MTK 6572 |
| GPU | - | Mali-400MP | Mali-400 |
| RAM | 64 MB | 512 MB | 512 MB |
| Internal Memory | 128 MB | 4 GB (1.27 GB for apps, 1.24 GB user available) | 4 GB ROM |
| External Memory | microSD, up to 32 GB, 4 GB card included | microSD, up to 32 GB | microSD, up to 32 GB |
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| Type | TFT capacitive touchscreen | IPS LCD Capacitive Touchscreen, Wide Viewing Angle | TFT capacitive touchscreen |
| Colors | 256K colors | 16M colors | 16M colors |
| Size | 3.0 inches | 4.0 inches | 4.0 inches |
| Resolution | 240 x 320 pixels (133 ppi) | 480 x 800 pixels (233 ppi) | 480 x 800 pixels (233 ppi) |
| Screen-to-Body Ratio | 48.68% | - | 56.50% |
| 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 | 3.2 MP, 2048x1536 pixels | 5 MP, 2592х1944 pixels | 3.2 MP, 2048x1536 pixels |
| Flash | No | LED flash | LED flash |
| Features | Auto and manual white balance, Still image editor, Full screen viewfinder | Auto-focus, Geo-tagging, Face Detection, Panorama | Fixed Focus, Geo-tagging |
| Video | Yes,QVGA@15fps | Yes, 720p | Yes, 720p |
| Front Camera | No [Similar] | Yes, 2 MP [Similar] | Yes, VGA [Similar] |
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| GPRS | Up to 85.6 kbps | Yes | Class 10 (4+1/3+2 slots), 32 - 48 kbps |
| Edge | Up to 236.8 kbps | Yes | Class 10, 236.8 kbps |
| 3G | N/A | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps |
| Bluetooth | Yes, v3.0 with EDR | Yes, v2.0 A2DP, EDR | Yes, v2.0 A2DP, EDR |
| Wi-Fi | Wi-Fi 802.11 b/g | Wi-Fi 802.11 b/g/n, 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 | No | Yes, with A-GPS support | Yes |
| Browser | WAP 2.0/xHTML, HTML | HTML | HTML |
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| Phonebook | 4000 Contacts | Practically unlimited entries and fields, Photocall | Practically unlimited entries and fields, Photocall |
| Internal | 128 MB, 64 MB RAM | 4 GB (1.27 GB for apps, 1.24 GB user available), 512 MB RAM | 4 GB ROM, 512 MB RAM |
| Expandable Storage | microSD, up to 32 GB, 4 GB card included | 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 (BL-4U) | Li-Ion Battery | Li-Po Battery |
| Capacity | 1200 mAh | 1400 mAh | 1500 mAh |
| Stand by | Up to 624 h | - | - |
| Talk Time | Up to 17 h | - | - |
