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Here is the comparison of features and specification of the mobile phones Microsoft Lumia 640 LTE Dual SIM and Karbonn Smart A12 Star.
Microsoft Lumia 640 LTE Dual SIM is manufactured by Microsoft and this phone was announced in 2015, March. Microsoft Lumia 640 LTE 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 850 / 900 / 1700 / 1900 / 2100
4G: LTE 700/800/850/900/1700/1800/1900/2100/2600 TD-LTE 2300 / 2600 (Bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 38, 40)
Dipsplay Type: The dispaly type of the Microsoft Lumia 640 LTE Dual SIM is IPS LCD capacitive touchscreen with 16M colors.
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Karbonn Smart A12 Star is manufactured by Karbonn and this phone was announced in 2014, July. Karbonn Smart A12 Star comes with with 4.0 inches and the resolution of the screen is 480 x 800 pixels.
This phone supports following network:
2G: GSM 900 / 1800 - SIM 1 & SIM 2
3G: HSDPA 2100
Dipsplay Type: The dispaly type of the Karbonn Smart A12 Star is IPS LCD capacitive touchscreen with 16M colors.
| Specification Summary: Microsoft Lumia 640 LTE Dual SIM vs Karbonn Smart A12 Star | ||
| Mobile Device | Microsoft Lumia 640 LTE Dual SIM | Karbonn Smart A12 Star |
| Display | 5.0 inches | 4.0 inches |
| Resolution | 720 x 1280 pixels | 480 x 800 pixels |
| Processor | Quad-core 1.2 GHz Cortex-A7 | Dual-core 1.2 GHz |
| Primary Camera | 8 MP | 5 MP |
| Front Camera | 1 MP | VGA |
| Storage | 8 GB | 4 GB |
| Battery | Li-Ion 2500 mAh | Li-Ion 1400 mAh |
| Full Specification comparison of Microsoft Lumia 640 LTE Dual SIM vs Karbonn Smart A12 Star | ||
| Mobile Device | Microsoft Lumia 640 LTE Dual SIM | Karbonn Smart A12 Star |
Display |
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| Screen Size | 5.0 inches (~67.6% screen-to-body ratio) | 4.0 inches (~57.1% screen-to-body ratio) |
| Screen Resolution | 720 x 1280 pixels | 480 x 800 pixels |
| Pixel Density | 720 x 1280 pixels (~294 ppi pixel density) | 480 x 800 pixels (~233 ppi pixel density) |
| Display Type | IPS LCD capacitive touchscreen with 16M colors | IPS LCD capacitive touchscreen with 16M colors |
| Screen Protection | Corning Gorilla Glass 3 | |
Processor and RAM |
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| Processor | Quad-core 1.2 GHz Cortex-A7 | Dual-core 1.2 GHz |
| Interal Storage | 8 GB, 1 GB RAM | 4 GB, 512 MB RAM |
| External Storage | microSD, up to 128 GB | microSD, up to 32 GB |
OS |
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| OS Details | Microsoft Windows Phone 8.1 with Lumia Denim | Android OS, v4.4.2 (KitKat) |
Display |
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| Display | 5.0 inches (~67.6% screen-to-body ratio) IPS LCD capacitive touchscreen, 16M colors 720 x 1280 pixels (~294 ppi pixel density) |
4.0 inches (~57.1% screen-to-body ratio) IPS LCD capacitive touchscreen, 16M colors 480 x 800 pixels (~233 ppi pixel density) |
| Display Type | IPS LCD capacitive touchscreen, 16M colors | IPS LCD capacitive touchscreen, 16M colors |
Camera |
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| Main Camera | 8 MP, 3264 x 2448 pixels, autofocus, LED flash | 5 MP, 2592 ? 1944 pixels, LED flash |
| Front Camera | 1 MP, 720p | VGA |
| Camera Features | 1/4'' sensor size | Geo-tagging |
Connectivity |
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| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 2G | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 900 / 1800 - SIM 1 & SIM 2 |
| 3G | HSDPA 850 / 900 / 1700 / 1900 / 2100 | HSDPA 2100 |
| 4G | LTE 700/800/850/900/1700/1800/1900/2100/2600 TD-LTE 2300 / 2600 (Bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 38, 40) | |
| Wi-Fi/connectivity | Wi-Fi 802.11 b/g/n, DLNA, hotspot | Wi-Fi 802.11 b/g/n, hotspot |
| Bluetooth | v4.0, A2DP | Yes |
| GPS | Yes, with A-GPS, GLONASS, Beidou | Yes, with A-GPS |
| USB | microUSB v2.0 | microUSB v2.0 |
Multimedia |
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| FM Radio | FM radio | FM radio |
| Loudspeaker | ||
| Audio Jack | Yes | Yes |
Other Features |
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| Compass | Yes | |
| Proximity Sensors | Yes | Yes |
| Accelerometer | Yes | Yes |
| Ambient Sensor | ||
| Gyroscope Sensor | ||
| Barometer Sensor | ||
| Temperature Sensor | ||
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