Phone Comparison - Karbonn A21 vs Nokia Lumia 928
Karbonn A21.jpg)
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Nokia Lumia 928.jpg)
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| Manufacturer | Karbonn | Nokia |
| Announced | 2012 | April 2013 |
| Status | Available | Available - May 2013 |
| Colors | Pearl White | Black, White |
| Form Factor | Candybar | Candybar |
| Dimension | - |
133 x 68.9 x 10.1 mm (5.24 x 2.71 x 0.4 in) |
| Weight | - | 162 g (5.71 oz) |
| 2G Network | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 CDMA 800 / 1900 |
| 3G Network | HSDPA 2100 | HSDPA 850 / 900/ 1900 / 2100 CDMA2000 1xEV-DO |
| 4G Network | - | LTE |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
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| OS | Android OS, v4.0 (Ice Cream Sandwich) | Microsoft Windows Phone 8 |
| Processor | Dual-core 1.2 GHz [Similar] | Dual-core 1.5 GHz, Qualcomm MSM8960 Snapdragon [Similar] |
| GPU | - | Adreno 225 [Similar] |
| RAM | 512 MB [Browse Similar] | 1 GB [Browse Similar] |
| Internal Memory | 4 GB | 32 GB storage |
| External Memory | microSD, up to 32 GB | No |
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| Type | TFT capacitive touchscreen | AMOLED Capacitive touchscreen |
| Colors | 256K colors | 16M colors |
| Size | 4.5 inches [Similar] | 4.5 inches [Similar] |
| Resolution | 480 x 800 pixels (207 ppi) [Similar] | 768 x 1280 pixels (332 ppi) |
| Screen-to-Body Ratio | - | 62.79% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | No |
| Games | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592х1944 pixels [Similar] | 8.7 MP, 3264 x 2448 pixels [Similar] |
| Flash | LED flash | Xenon Flash |
| Features | Auto focus, Geo-tagging, Face Detection | 1.4 µm pixel size, PureView Technology, Geo-tagging, Touch Focus, Panorama, Carl Zeiss optics, optical image stabilization, autofocus, Automatic motion blur reduction |
| Video | Yes | Yes, 1080p@30fps, video stabilization |
| Front Camera | Yes, 1.3 MP [Similar] | Yes, 1.3 MP, 720p@30fps [Similar] |
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| GPRS | Yes | Yes |
| Edge | Yes | Up to 237 kbps |
| 3G | HSDPA, 7.2 Mbps | EV-DO Rev. A, up to 3.1 Mbps, HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 100 Mbps DL |
| Bluetooth | Yes, v2.1 with A2DP | Yes, v3.0 with A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 a/b/g/n, dual-band, DLNA, Wi-Fi hotspot, Wi-Fi Channel Bonding |
| USB | Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support and GLONASS |
| Browser | HTML | HTML5 |
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| Internal | 4 GB, 512 MB RAM | 32 GB storage, 1 GB RAM |
| Expandable Storage | 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 | Non-removable Li-Ion battery (BV-4NW) |
| Capacity | 1800 mAh | 2000 mAh |
| Stand by | Up to 200 h | Up to 606 h (2G) Up to 541 h (3G) |
| Talk Time | Up to 5 h | Up to 11 h 48 min (2G) Up to 16 h 12 min (3G) |
