Phone Comparison - Karbonn A21 vs Sony Xperia ZR
Karbonn A21.jpg)
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Sony Xperia ZR.jpg)
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| Manufacturer | Karbonn | Sony |
| Announced | 2012 | May 2013 |
| Status | Available | Available - June 2013 |
| Colors | Pearl White | Black, White |
| Form Factor | Candybar | Candybar |
| Dimension | - |
131.3 x 67.3 x 10.5 mm (5.17 x 2.65 x 0.41 in) |
| Weight | - | 138 g (4.87 oz) |
| 2G Network | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 2100 | HSDPA 900 / 2100 HSDPA 850 / 1700 / 1900 / 2100 |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
| Build Features | - | Dust and Water Proof (IP55/IP58 certified) Water resistant up to 1 meter and 30 minutes Shatter proof sheet on scratch-resistant glass |
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| OS | Android OS, v4.0 (Ice Cream Sandwich) | Android OS, v4.1 (Jelly Bean) |
| Processor | Dual-core 1.2 GHz [Similar] | Quad-core 1.5 GHz Krait, Qualcomm Snapdragon APQ8064 [Similar] |
| GPU | - | Adreno 320 [Similar] |
| RAM | 512 MB [Browse Similar] | 2 GB [Browse Similar] |
| Internal Memory | 4 GB | 8 GB |
| External Memory | microSD, up to 32 GB | microSD, up to 32 GB |
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| Type | TFT capacitive touchscreen | TFT capacitive touchscreen |
| Colors | 256K colors | 16M colors |
| Size | 4.5 inches [Similar] | 4.55 inches [Similar] |
| Resolution | 480 x 800 pixels (207 ppi) [Similar] | 720 x 1280 pixels (323 ppi) [Similar] |
| Screen-to-Body Ratio | - | 64.49% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | Stereo FM radio with RDS |
| Games | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592х1944 pixels [Similar] | 13.1 MP, 4128x3096 pixels [Similar] |
| Flash | LED flash | LED flash |
| Features | Auto focus, Geo-tagging, Face Detection | Auto focus, Geo-tagging, Touch Focus, Face Detection, Image Stabilization, HDR, Sweep Panorama, Sony Exmor RS for mobile image sensor |
| Video | Yes | Yes, 1080p@30fps |
| Front Camera | Yes, 1.3 MP [Similar] | Yes, VGA [Similar] |
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| GPRS | Yes | Up to 107 kbps |
| Edge | Yes | Up to 296 kbps |
| 3G | HSDPA, 7.2 Mbps | HSDPA, HSUPA |
| Bluetooth | Yes, v2.1 with A2DP | Yes, v4.0 with A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct, DLNA, Wi-Fi hotspot |
| USB | Yes, microUSB v2.0 | Yes, microUSB v2.0 (MHL) |
| GPS | Yes, with A-GPS support | Yes, with A-GPS support |
| Browser | HTML | HTML5 |
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| Internal | 4 GB, 512 MB RAM | 8 GB, 2 GB RAM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 32 GB |
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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 |
| Capacity | 1800 mAh | 2300 mAh |
| Stand by | Up to 200 h | Up to 520 h |
| Talk Time | Up to 5 h | Up to 13 h |
