Phone Comparison - Karbonn A21 vs Karbonn A21+ vs Karbonn Titanium S5 Plus
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| Manufacturer | Karbonn | Karbonn | Karbonn |
| Announced | 2012 | June 2013 | December 2013 |
| Status | Available | Available - July 2013 | Available - December 2013 |
| Colors | Pearl White | Black, White | Deep Blue, Pearl White |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension | - | - |
138 x 70.5 x 7.9 mm (5.43 x 2.78 x 0.31 in) |
| Weight | - | - | 104.5 g without Batt (3.67.0.18 oz without Batt) |
| 2G Network | GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 900 / 1800 - SIM 1 & SIM 2 | GSM 900 / 1800 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 2100 | HSDPA 2100 | HSDPA 2100 |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
| Build Features | - | Touch and Swipe Gestures | - |
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| OS | Android OS, v4.0 (Ice Cream Sandwich) | Android OS, v4.2 (Jelly Bean) | Android OS, v4.2 (Jelly Bean) |
| Processor | Dual-core 1.2 GHz | Dual-core 1 GHz, MTK 6577 | Quad-core 1.3 GHz, Mediatek MT6582M |
| GPU | - | PowerVR SGX531 | PowerVR SGX544MP |
| RAM | 512 MB | 512 MB | 1 GB |
| Internal Memory | 4 GB | 4 GB (2.1 GB User Memory) | 4 GB |
| External Memory | microSD, up to 32 GB | microSD, up to 32 GB | microSD, up to 32 GB |
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| Type | TFT capacitive touchscreen | TFT Capacitive Touchscreen | IPS LCD Capacitive Touchscreen, OnCell technology |
| Colors | 256K colors | 16M colors | 16M colors |
| Size | 4.5 inches | 5.0 inches | 5 inches |
| Resolution | 480 x 800 pixels (207 ppi) | 480 x 854 pixels (196 ppi) | 540 x 960 pixels (221 ppi) |
| Screen-to-Body Ratio | - | - | 70.38% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | FM radio; FM recording | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592х1944 pixels | 5 MP, 2592х1944 pixels | 8 MP, 3264x2448 pixels |
| Flash | LED flash | LED flash | LED flash |
| Features | Auto focus, Geo-tagging, Face Detection | Auto focus, Geo-tagging, Touch Focus | Auto focus, Geo-tagging |
| Video | Yes | Yes, 720p | Yes |
| Front Camera | Yes, 1.3 MP [Similar] | Yes [Similar] | Yes, VGA [Similar] |
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| GPRS | Yes | Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps | Yes |
| Edge | Yes | Class 12 | Yes |
| 3G | HSDPA, 7.2 Mbps | HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps | HSDPA |
| Bluetooth | Yes, v2.1 with A2DP | Yes, v4.0 with A2DP | Yes, with A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n | 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 | Yes, with A-GPS support | Yes, with A-GPS support | Yes, with A-GPS support |
| Browser | HTML | HTML5 | HTML |
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| Internal | 4 GB, 512 MB RAM | 4 GB (2.1 GB User Memory), 512 MB RAM | 4 GB, 1 GB RAM |
| Expandable Storage | microSD, up to 32 GB | 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 | Li-Ion Battery | Li-Ion Battery |
| Capacity | 1800 mAh | 2000 mAh | 1800 mAh |
| Stand by | Up to 200 h | Up to 240 h | Up to 96 h |
| Talk Time | Up to 5 h | - | Up to 4 h |
