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Here is the comparison of features and specification of the mobile phones Celkon A21 and Microsoft Lumia 540 Dual SIM.
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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Microsoft Lumia 540 Dual SIM is manufactured by Microsoft and this phone was announced in 2015, April. Microsoft Lumia 540 Dual SIM comes with with 5.0 inches and the resolution of the screen is 720 x 1280 pixels.
This phone supports following network:
2G: GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G: HSDPA 900 / 2100
Dipsplay Type: The dispaly type of the Microsoft Lumia 540 Dual SIM is IPS LCD capacitive touchscreen with 16M colors.
| Specification Summary: Celkon A21 vs Microsoft Lumia 540 Dual SIM | ||
| Mobile Device | Celkon A21 | Microsoft Lumia 540 Dual SIM |
| Display | 4.0 inches | 5.0 inches |
| Resolution | 320 x 480 pixels | 720 x 1280 pixels |
| Processor | Quad-core 1.3 GHz Cortex-A7 | Quad-core 1.2 GHz Cortex-A7 |
| Primary Camera | 3.15 MP | 8 MP |
| Front Camera | 1.3 MP | 5 MP |
| Storage | 512 MB ROM | 8 GB |
| Battery | Li-Ion 1500 mAh | Li-Ion 2200 mAh |
| Full Specification comparison of Celkon A21 vs Microsoft Lumia 540 Dual SIM | ||
| Mobile Device | Celkon A21 | Microsoft Lumia 540 Dual SIM |
Display |
||
| Screen Size | 4.0 inches (~57.8% screen-to-body ratio) | 5.0 inches (~64.9% screen-to-body ratio) |
| Screen Resolution | 320 x 480 pixels | 720 x 1280 pixels |
| Pixel Density | 320 x 480 pixels (~144 ppi pixel density) | 720 x 1280 pixels (~294 ppi pixel density) |
| Display Type | Capacitive touchscreen | IPS LCD capacitive touchscreen with 16M colors |
| Screen Protection | ||
Processor and RAM |
||
| Processor | Quad-core 1.3 GHz Cortex-A7 | Quad-core 1.2 GHz Cortex-A7 |
| Interal Storage | 512 MB ROM, 256 MB RAM | 8 GB, 1 GB RAM |
| External Storage | microSD, up to 32 GB | microSD, up to 128 GB |
OS |
||
| OS Details | Android OS, v4.2.2 (Jelly Bean) | Microsoft Windows Phone 8.1 with Lumia Denim |
Display |
||
| Display | 4.0 inches (~57.8% screen-to-body ratio) Capacitive touchscreen 320 x 480 pixels (~144 ppi pixel density) |
5.0 inches (~64.9% screen-to-body ratio) IPS LCD capacitive touchscreen, 16M colors 720 x 1280 pixels (~294 ppi pixel density) |
| Display Type | Capacitive touchscreen | IPS LCD capacitive touchscreen, 16M colors |
Camera |
||
| Main Camera | 3.15 MP | 8 MP, 3264 x 2448 pixels, autofocus, LED flash |
| Front Camera | 1.3 MP | 5 MP, 480p |
| Camera Features | 1/4'' sensor size, geo-tagging | |
Connectivity |
||
| GPRS | Yes | Yes |
| EDGE | Yes | Up to 236 kbps |
| 2G | GSM 900 / 1800 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G | HSDPA 2100 | HSDPA 900 / 2100 |
| 4G | ||
| Wi-Fi/connectivity | Yes | Wi-Fi 802.11 b/g/n, DLNA, hotspot |
| Bluetooth | v4.0 | v4.0, A2DP |
| GPS | No | Yes, with A-GPS, GLONASS |
| USB | Yes | microUSB v2.0 |
Multimedia |
||
| FM Radio | FM radio | FM radio |
| Loudspeaker | ||
| Audio Jack | Yes | Yes |
Other Features |
||
| Compass | ||
| Proximity Sensors | Yes | |
| Accelerometer | Yes | Yes |
| Ambient Sensor | ||
| Gyroscope Sensor | ||
| Barometer Sensor | ||
| Temperature Sensor | ||
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