| Celkon A21ALSO KNOWN AS  | |
|---|---|
| Construction | |
| Dimension | 124.8x66.1x10.8mm (4.91x2.6x0.43") | 
| Weight | 115.3gr (4.07oz) | 
| Form Factor | Candy Bar | 
| Material | |
| Colors | |
| Metal Frame | |
| Usability | |
| Display Resolution | 320x480px | 
| Display Size | 57x85mm (2.24x3.35") ~144PPI | 
| Display Diagonal | 4.0" | 
| Display Type | |
| Secondary Display Resolution | |
| Input | Capacitive Touchscreen | 
| Talk Time | 8 hours | 
| Standby Time | 5 days | 
| OS | Android OS, v4.2.2 | 
| Java | MIDP 2.0 | 
| Vibration | Available | 
| Ringtone | Polyphonic | 
| Hardware | |
| Chipset | MediaTek MT6582 | 
| Processor | 2 Cores @ 1.2GHz ARM Cortex-A7 | 
| GPU | Mali-400 | 
| Ram | 256MB | 
| Internal Memory | 512MB | 
| External Memory | microSD | 
| Camera Resolution | 3.15 Megapixel | 
| Camera Flash | |
| Camera Lens | |
| Optical Zoom | |
| Front Camera | 1.3 Megapixel | 
| Second Front Camera | |
| Front Camera Flash | |
| Other Functionalities | Accelerometer | 
| Speaker | Mono | 
| Battery Capacity | 1500mAh | 
| Battery Type | |
| Connectivity | |
| WIMAX | |
| WiFi | Wi-Fi 802.11 b/g/n | 
| UPnP | |
| NFC | |
| USB | v2.0 | 
| Bluetooth | v4.0 | 
| Positioning System | Integrated GPS | 
| TV Receiver | |
| TV Out | |
| Audio Output | 3.5mm Jack | 
| Radio | FM | 
| Ethernet | |
| Infrared | |
| Cellular Network | |
| Network Compatibility | GSM 1800,  900 UMTS 2100 HSPA 2100 | 
| SIM Cards | 2x Slot | 
| PTT | |
| HSCSD | |
| GPRS | Available | 
| EDGE | Available | 
| AMPS | |
| CDMA2000 1xEV-DO | |
| VARIOUS | |
| Price Range | - | 
World Compatibility

N/A
2G
3G
3.5G
4G






