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Brief information about compared phones: Celkon A63 , Celkon A66Celkon A63 2013 year of release. cpu Dual-core 1.2 GHz. screen 4". with resolution 480x800. Smartphone has 0 megapixel front camera and 3 megapixel main camera . Celkon A66 2014 year of release. cpu Dual-core 1.2 GHz. screen 4.5". with resolution 480x854. Smartphone has 0 megapixel front camera and 3 megapixel main camera . |
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| Display | Technology | TFT | TFT | |
| Touchscreen | capacitive touchscreen | capacitive touchscreen | ||
| Display colors | ||||
| Screen size | 4" inch | 4.5" inch | ||
| Screen area | 45.5 cm2 | 55.8 cm2 | ||
| Screen format | 5:3 (height:width) | 16:9 (height:width) | ||
| Screen to body ratio | % | 61.1% | ||
| Screen resolution | 480 x 800 px | 480 x 854 px | ||
| PPI /points per inch/ | 233 PPI | 218 PPI | ||
| Camera and Video | Rear camera, main | 3.15 MP, Single | 3.15 MP, Single | |
| Camera specs | 3.15 MP | 3.15 MP | ||
| Functions | LED flash | |||
| Video | Yes | Yes | ||
| Front camera, selfie | 0.3 MP, Single | 0.3 MP, Single | ||
| Specifications | VGA | VGA | ||
| Performance | Operating system OS | Android 4.2.0 (Jelly Bean) | Android 4.1.2 (Jelly Bean) | |
| Processor CPU | Dual-core 1.2 GHz | Dual-core 1.2 GHz | ||
| External memory | microSD, up to 32 GB (dedicated slot) | microSD, up to 32 GB | ||
| Internal memory | 512 MB, 256 MB RAM | 4 GB, 512 MB RAM | ||
| General specs | Release date | 2013, August | 2014 | |
| Dimensions (HxWxD) | Х Х mm | 136 Х 67.2 Х 11 mm | ||
| Weight | 0 g | 98 g | ||
| Colors | Black | White, Black | ||
| Battery | 1500 mAh, Li-Ion | 2000 mAh, Li-Ion | ||
| Approximate price | 50 EUR | |||
| Battery life | Stand by time- Up to 160 h Talking time- Up to 5 h | |||
| Communication and Connectivity | SIM card | Dual SIM (Mini-SIM) | Dual SIM | |
| Network | Show all network frequencies: | Show all network frequencies: | ||
| Speed | ||||
| GPRS | Class 12 | Yes | ||
| Edge | Class 12 | Yes | ||
| Wi-Fi | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 b/g/n, hotspot | ||
| GPS | No | Yes | ||
| NFC | ||||
| USB | microUSB 2.0 | microUSB | ||
| Bluetooth | Yes | 2.0 | ||
| Harmful irradiation | SAR EU - 0.91 W/kg (head) 0.63 W/kg (body) | SAR EU - 0.38 W/kg (head) 0.47 W/kg (body) | ||
| Music and Audio | Radio | FM radio | ||
| Headphone jack | Yes | Yes | ||
| Other features | Dop | Sensors Proximity, gyro | Sensors Accelerometer, proximity | |
