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                                        Karbonn KT21 Express | 
                                    
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| 
                                         Launch 
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| Announced | 2012 | |
| Status | Available | |
| 
                                         Network 
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| Technology | No cellular connectivity | |
| 2G | GSM - SIM 1 & SIM 2 | |
| GPRS | Yes | |
| Edge | Yes | |
| 
                                         Body 
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| Dimensions | - | |
| Weight | - | |
| SIM | Dual SIM (Mini-SIM) | |
| 
                                         Display 
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| Type | TFT capacitive touchscreen | |
| Size | 2.8 inches | |
| Resolution | - | |
| 
                                         Memory 
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| Card Slot | microSD, up to 32 GB (dedicated slot) | |
| 
                                         Camera 
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| Primary | 3.15 MP, LED flash | |
| Video | Yes | |
| Secondary | No | |
| 
                                         Sound 
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| Alert types | Vibration, Polyphonic(64), MP3 ringtones | |
| Loudspeaker | Yes | |
| 3.5mm Jack | Yes | |
| 
                                         Comms 
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| WLAN | No | |
| Bluetooth | Yes | |
| GPS | No | |
| Radio | FM radio, recording | |
| USB | Yes | |
| 
                                         Features 
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| Sensors | Proximity | |
| Messaging | SMS, MMS, Email | |
| Browser | Yes | |
| Java | Yes | |
| 
                                         Battery 
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| Battery | Removable Li-Ion 1000 mAh battery | |
| 
                                         Misc 
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| Colors | Black | |
| Price group | 1/10 (About 40 EUR) | |