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Brief information about compared phones: Celkon A66 , Nokia E51Celkon 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 . Nokia E51 2007 year of release. cpu 369 MHz ARM 11. screen 2". with resolution 240x320. Smartphone has 2 megapixel main camera . |
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| Display | Technology | TFT | TFT | |
| Touchscreen | capacitive touchscreen | |||
| Display colors | 16M | |||
| Screen size | 4.5" inch | 2" inch | ||
| Screen area | 55.8 cm2 | 12.4 cm2 | ||
| Screen format | 16:9 (height:width) | 4:3 (height:width) | ||
| Screen to body ratio | 61.1% | 23.5% | ||
| Screen resolution | 480 x 854 px | 240 x 320 px | ||
| PPI /points per inch/ | 218 PPI | 200 PPI | ||
| Camera and Video | Rear camera, main | 3.15 MP, Single | 2 MP, Single | |
| Camera specs | 3.15 MP | 2 MP | ||
| Functions | LED flash | |||
| Video | Yes | 320p@15fps | ||
| Front camera, selfie | 0.3 MP, Single | 0 MP, | ||
| Specifications | VGA | |||
| Performance | Operating system OS | Android 4.1.2 (Jelly Bean) | Symbian OS 9.2, Series 60 v3.1 UI | |
| Processor CPU | Dual-core 1.2 GHz | 369 MHz ARM 11 | ||
| External memory | microSD, up to 32 GB | microSD, up to 16 GB (dedicated slot) | ||
| Internal memory | 4 GB, 512 MB RAM | 130 MB, 96 MB RAM | ||
| General specs | Release date | 2014 | 2007, September | |
| Dimensions (HxWxD) | 136 Х 67.2 Х 11 mm | 114.8 Х 46 Х 12 mm | ||
| Weight | 98 g | 100 g | ||
| Colors | White, Black | Black, Silver | ||
| Battery | 2000 mAh, Li-Ion | 1050 mAh, Removable Li-Ion | ||
| Approximate price | 120 EUR | |||
| Battery life | Stand by time- Up to 160 h Talking time- Up to 5 h | Stand by time- Up to 310 h Talking time- Up to 4 h 20 min | ||
| Communication and Connectivity | SIM card | Dual SIM | Mini-SIM | |
| Network | Show all network frequencies: | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 | ||
| Speed | HSPA 3.6/0.384 Mbps | |||
| GPRS | Yes | Class 32 | ||
| Edge | Yes | Class 32 | ||
| Wi-Fi | Wi-Fi 802.11 b/g/n, hotspot | Wi-Fi 802.11b/g, VoIP over WLAN | ||
| GPS | Yes | No | ||
| NFC | ||||
| USB | microUSB | miniUSB 2.0 | ||
| Bluetooth | 2.0 | 2.0, A2DP | ||
| Harmful irradiation | SAR EU - 0.38 W/kg (head) 0.47 W/kg (body) | SAR - 1.38 W/kg (head) 0.75 W/kg (body) SAR EU - 1.47 W/kg (head) | ||
| Music and Audio | Radio | FM radio | FM radio | |
| Headphone jack | Yes | No | ||
| Others | Five-way scroll key -Downloadable themes | |||
| Other features | Dop | Sensors Accelerometer, proximity | , Infrared port - Push to talk -WMV/RV/MP4/3GP player -MP3/WMA/WAV/RA/AAC/M4A player -Document viewer (Word, Excel, PowerPoint, PDF) incl. MS Office 2007 support via free update -Predictive text input -Voice command/memo -Organizer | |
