Phone Comparison - Samsung Galaxy Star Duos S5282 vs Nokia Asha 501 vs Karbonn A4
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| Manufacturer | Samsung | Nokia | Karbonn |
| Announced | April 2013 | May 2013 | March 2013 |
| Status | Available - May 2013 | Available - June 2013 | Available - March 2013 |
| Colors | Black, White, Blue | Bright Red, Bright Green, Cyan, Yellow, White and Black | White/Black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
105 x 58 x 11.9 mm (4.13 x 2.28 x 0.47 in) |
99.2 x 58 x 12.1 mm (3.91 x 2.28 x 0.48 in) |
124.8 x 66 x 9.5 mm (4.91 x 2.6 x 0.37 in) |
| Weight | 100.5 g (3.53.0.18 oz) | 98 g (3.46 oz) | 75 g (2.65 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 1900 | GSM 900 / 1800 - SIM 1 & SIM 2 |
| 3G Network | N/A | N/A | N/A |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Android OS, v4.1.2 (Jelly Bean) | Nokia Asha Software Platform 1.0 | Android OS, v2.3.6 (Gingerbread) |
| Processor | 1 GHz, Spreadtrum SP8810 | - | 1 GHz |
| GPU | Mali-300 | - | - |
| RAM | 512 MB | 64 MB | 256 MB |
| Internal Memory | 4 GB | 128 MB | 104 MB |
| External Memory | microSD, up to 32 GB | microSD, up to 32 GB, 4 GB card included | microSD, up to 32 GB |
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| Type | TFT capacitive touchscreen | TFT capacitive touchscreen | TFT capacitive touchscreen |
| Colors | 65K colors | 256K colors | 256K colors |
| Size | 3.0 inches | 3.0 inches | 4.0 inches |
| Resolution | 240 x 320 pixels (133 ppi) | 240 x 320 pixels (133 ppi) | 320 x 480 pixels (144 ppi) |
| Screen-to-Body Ratio | 45.99% | 48.68% | 58.02% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS, FM Recording | Stereo FM radio with RDS | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 2 MP, 1600x1200 pixels | 3.2 MP, 2048x1536 pixels | 3.2 MP, 2048x1536 pixels |
| Flash | No | No | No |
| Features | Fixed Focus, Smile Shot, | Auto and manual white balance, Still image editor, Full screen viewfinder | Face Detection |
| Video | Yes, QVGA@15fps | Yes,QVGA@15fps | Yes |
| Front Camera | No [Similar] | No [Similar] | Yes, VGA [Similar] |
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| GPRS | Yes | Up to 85.6 kbps | Yes |
| Edge | Yes | Up to 236.8 kbps | Yes |
| 3G | No | N/A | No |
| Bluetooth | Yes, v4.0 | Yes, v3.0 with EDR | Yes |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot | Wi-Fi 802.11 b/g | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot |
| USB | Yes, microUSB v2.0 | Yes, microUSB | Yes |
| GPS | No | No | No |
| Browser | HTML | WAP 2.0/xHTML, HTML | HTML |
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| Phonebook | Practically unlimited entries and fields, Photocall | 4000 Contacts | Practically unlimited entries and fields, Photocall |
| Internal | 4 GB, 512 MB RAM | 128 MB, 64 MB RAM | 104 MB, 256 MB RAM, 512 MB ROM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 32 GB, 4 GB card included | 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 (BL-4U) | Li-Ion Battery |
| Capacity | 1200 mAh | 1200 mAh | 1400 mAh |
| Stand by | Up to 320 h | Up to 624 h | Up to 250 h |
| Talk Time | Up to 14 h | Up to 17 h | Up to 4 h 10 min |
