Name | Karbonn A21
 | BLU Quattro 4.5 HD
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Chipset: | | Nvidia Tegra 3 |
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Processor: | 1.2 GHz Qualcomm Scorpion Dual Core | Quad-core 1.5 GHz |
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GPU: | No GPU | ULP GeForce |
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Operating System: | Android | Android |
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Operating System Version: | Ice Cream Sandwich (4.0) | Android v4.0 Ice Cream Sandwich, upgradable to v4.1 Jelly Bean |
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Sensors: | Light Sensor, 3D G-Sensor and Proximity Sensor | Accelerometer, gyro, proximity, compass |
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Manufacturer: | Karbonn | BLU |
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Series Name: | Karbonn A | Quattro |
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Dimensions: | N/A | 134 x 67 x 10.3mm |
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Weight: | 130g | 148 g |
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Camera Type: | Dual Camera | Dual Camera |
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Front Camera: | 1.3 Mega Pixels | Yes, 1.3 MP |
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Back Camera: | 5 Mega Pixels | 8 MP, 3264 x 2448 pixels, autofocus, LED flash |
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Camera features: | 2592 x 1944 pixels resolution, HD images, LED Flash, Auto Focus, Face Detection, Digital Zooming etc. | Simultaneous HDvideo and imagerecording, geo-tagging, touch focus, faceand smile detection, imagestabilization |
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Video Camera features: | Camera can capture videos in MP4, H.263, H.264, AVI and 3GP formats. | 1080p@24fps, stereo sound rec., video stabilization |
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RAM: | 1GB | 1 GB |
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External Memory: | Up to 32 GB | No microSD card slot |
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Internal Storage: | 4 GB Storage | 16 GB |
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Screen Size: | 480 x 800 px | 4.5 inches capacitive touchscreen |
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Display: | 4.5 inches TFT Capacitive Touchscreen | 4.5 inches capacitive touchscreen |
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Ports: | USB 2.0 | microUSB v2.0 |
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Battery Type: | 1800 mAh | Li-Ion 1800 mAhbattery |
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Battery (Talk Time): | 5 hours (2G) and 8 hours (3G) | Up to 14 h (2G) /Up to 12 h (3G) |
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Battery (Standby Time): | 200 hours (2G) and 290 hours (3G) | Up to 750 h (2G)/ Up to 700 h (3G) |
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Audio: | MIDI, WAV and MP3 | MP3 / AAC / WMA / WAV |
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Video: | MP4, AVI, 3GP, H.263 and H.264 | MP4 / DivX / XviD / WMV / H.264 / H.263 |
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Accessories: | | |
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Network: | 2G - GSM 850 / 900 / 1800 / 1900, 3G - HSDPA 850 / 1900 / 2100 | 2G, 3G |
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GPRS: | Yes | Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps |
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Bluetooth: | v2.1 | Yes, v4.0 with A2DP |
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Connectivity: | 3G - HSDPA, 7.2 Mbps, Wi-Fi - 802.11 b/g/n, EDGE and A-GPS with Google Maps | Wi-Fi 802.11 a/b/g/n, dual band, Wi-Fi Direct, DLNA, Wi-Fi hotspot |
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Available Colors: | Pearl White | Black |
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Announced/Launched Date: | September 2012 | 2013, February |
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Built-in Apps: | Gmail, Twitter, Google Search, Google Play, Skype, Google Talk, Yahoo Messenger, Flickr, Picasa, Facebook, PayTM, NexGTv, WhatsApp, Mobile TV and Google Currents | Google Search, Maps, Gmail, Youtube, Calendar, GoogleTalk |
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SIM Card Type: | Regular SIM | Regular SIM |
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SIM Slots: | Dual SIM | Single SIM |
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Price Range: | US$100 to US$199 | US$100 to US$199 |
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Category: | Mid range Smartphone | Mid range Smartphone |
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Sensors: Accelerometer: | | Yes |
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Sensors: Gyroscope: | | Yes |
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Sensors: GPS: | | Yes |
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Sensors: Compass: | | Yes |
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Sensors: Barometer: | | Yes |
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| Read Karbonn A21 reviews. | Read BLU Quattro 4.5 HD reviews. |
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| Compare Karbonn A21: HTC 8XSamsung Galaxy S DUOSSamsung Galaxy Note IINokia Lumia 920Samsung Galaxy Victory Lenovo S880LG Optimus L5 E612LG Optimus L7 P705SONY Xperia USony Xperia PSony Ericsson Xperia ARC S LT18iNokia Lumia 810LG Optimus L9 P765LG E730Apple's iPhone 4SLava XOLO A700Karbonn A11Micromax A116 Canvas HDIntex Aqua StyleSamsung Galaxy S II plusSamsung Galaxy Grand Duos GT-i9082EWASony Xperia tipo dualSamsung Galaxy Fame S6810BLU Quattro 4.5 HDLava XOLO A1000 | Compare BLU Quattro 4.5 HD: HTC 8XSamsung Galaxy S DUOSSamsung Galaxy Note IINokia Lumia 920Samsung Galaxy Victory Lenovo S880LG Optimus L5 E612LG Optimus L7 P705SONY Xperia USony Xperia PSony Ericsson Xperia ARC S LT18iNokia Lumia 810LG Optimus L9 P765LG E730Apple's iPhone 4SLava XOLO A700Karbonn A11Karbonn A21Micromax A116 Canvas HDIntex Aqua StyleSamsung Galaxy S II plusSamsung Galaxy Grand Duos GT-i9082EWASony Xperia tipo dualSamsung Galaxy Fame S6810Lava XOLO A1000 |