Here is the comparison of features and specification of the mobile phones Celkon A21 and BlackBerry Classic.
Celkon A21 is manufactured by Celkon and this phone was announced in 2014. Celkon A21 comes with with 4.0 inches and the resolution of the screen is 320 x 480 pixels.
This phone supports following network:
2G: GSM 900 / 1800 - SIM 1 & SIM 2
3G: HSDPA 2100
Dipsplay Type: The dispaly type of the Celkon A21 is Capacitive touchscreen.
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BlackBerry Classic is manufactured by Blackberry and this phone was announced in 2014, June. BlackBerry Classic comes with with 3.5 inches and the resolution of the screen is 720 x 720 pixels.
This phone supports following network:
2G: GSM 850 / 900 / 1800 / 1900
3G: HSDPA 850 / 1700 / 1900 / 2100 - USA model
4G: LTE 700 / 850 / 1700 / 1900 / 2100 / 2600 (Bands 1, 2, 4, 5, 7, 13, 17, 25) - USA model
Dipsplay Type: The dispaly type of the BlackBerry Classic is Capacitive touchscreen with 16M colors.
| Specification Summary: Celkon A21 vs BlackBerry Classic | ||
| Mobile Device | Celkon A21 | BlackBerry Classic |
| Display | 4.0 inches | 3.5 inches |
| Resolution | 320 x 480 pixels | 720 x 720 pixels |
| Processor | Quad-core 1.3 GHz Cortex-A7 | Dual-core 1.5 GHz Krait |
| Primary Camera | 3.15 MP | 8 MP |
| Front Camera | 1.3 MP | 2 MP |
| Storage | 512 MB ROM | 16 GB |
| Battery | Li-Ion 1500 mAh | Non-removable Li-Ion 2515 mAh |
| Full Specification comparison of Celkon A21 vs BlackBerry Classic | ||
| Mobile Device | Celkon A21 | BlackBerry Classic |
Display |
||
| Screen Size | 4.0 inches (~57.8% screen-to-body ratio) | 3.5 inches (~40.8% screen-to-body ratio) |
| Screen Resolution | 320 x 480 pixels | 720 x 720 pixels |
| Pixel Density | 320 x 480 pixels (~144 ppi pixel density) | 720 x 720 pixels (~294 ppi pixel density) |
| Display Type | Capacitive touchscreen | Capacitive touchscreen with 16M colors |
| Screen Protection | Corning Gorilla Glass 3 | |
Processor and RAM |
||
| Processor | Quad-core 1.3 GHz Cortex-A7 | Dual-core 1.5 GHz Krait |
| Interal Storage | 512 MB ROM, 256 MB RAM | 16 GB, 2 GB RAM |
| External Storage | microSD, up to 32 GB | microSD, up to 128 GB |
OS |
||
| OS Details | Android OS, v4.2.2 (Jelly Bean) | BlackBerry OS 10.3.1 |
Display |
||
| Display | 4.0 inches (~57.8% screen-to-body ratio) Capacitive touchscreen 320 x 480 pixels (~144 ppi pixel density) |
3.5 inches (~40.8% screen-to-body ratio) Capacitive touchscreen, 16M colors 720 x 720 pixels (~294 ppi pixel density) |
| Display Type | Capacitive touchscreen | Capacitive touchscreen, 16M colors |
Camera |
||
| Main Camera | 3.15 MP | 8 MP, 3264 x 2448 pixels, autofocus, LED flash |
| Front Camera | 1.3 MP | 2 MP |
| Camera Features | Geo-tagging, touch focus, face detection, HDR, panorama | |
Connectivity |
||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 2G | GSM 900 / 1800 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 |
| 3G | HSDPA 2100 | HSDPA 850 / 1700 / 1900 / 2100 - USA model |
| 4G | LTE 700 / 850 / 1700 / 1900 / 2100 / 2600 (Bands 1, 2, 4, 5, 7, 13, 17, 25) - USA model | |
| Wi-Fi/connectivity | Yes | Wi-Fi 802.11 a/b/g/n, dual-band, hotspot |
| Bluetooth | v4.0 | v4.0, A2DP, EDR, LE |
| GPS | No | Yes, with A-GPS |
| USB | Yes | microUSB v2.0 (SlimPort) |
Multimedia |
||
| FM Radio | FM radio | FM radio |
| Loudspeaker | ||
| Audio Jack | Yes | Yes |
Other Features |
||
| Compass | Yes | |
| Proximity Sensors | Yes | |
| Accelerometer | Yes | Yes |
| Ambient Sensor | ||
| Gyroscope Sensor | Yes | |
| Barometer Sensor | ||
| Temperature Sensor | ||
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