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Brief information about compared phones: Celkon A20 , Nokia E61Celkon A20 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 . Nokia E61 2005 year of release. cpu 220 MHz Dual ARM 9. screen 2.9". with resolution 320x240. |
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| Display | Technology | TFT | TFT | |
| Touchscreen | capacitive touchscreen | |||
| Display colors | 16M | |||
| Screen size | 4" inch | 2.9" inch | ||
| Screen area | 45.5 cm2 | 26.0 cm2 | ||
| Screen format | 5:3 (height:width) | 4:3 (height:width) | ||
| Screen to body ratio | % | 31.9% | ||
| Screen resolution | 480 x 800 px | 320 x 240 px | ||
| PPI /points per inch/ | 233 PPI | 138 PPI | ||
| Camera and Video | Rear camera, main | 3.15 MP, Single | 0 MP, | |
| Camera specs | 3.15 MP | |||
| Video | Yes | |||
| Front camera, selfie | 0.3 MP, Single | 0 MP, | ||
| Specifications | VGA | |||
| Performance | Operating system OS | Android 4.2.0 (Jelly Bean) | Symbian OS 9.1, Series 60 UI | |
| Processor CPU | Dual-core 1.2 GHz | 220 MHz Dual ARM 9 | ||
| External memory | microSD, up to 32 GB (dedicated slot) | miniSD, 64 MB included | ||
| Internal memory | 256 MB, 512 MB RAM | 64 MB, 64 MB RAM | ||
| General specs | Release date | 2013, August | 2005, October | |
| Dimensions (HxWxD) | Х Х mm | 117 Х 69.7 Х 14 mm | ||
| Weight | 0 g | 144 g | ||
| Colors | Black | Silver | ||
| Battery | 1500 mAh, Li-Ion | 1500 mAh, Removable Li-Po | ||
| Approximate price | 60 EUR | 230 EUR | ||
| Battery life | Stand by time- Up to 260 h Talking time- Up to 7 h | |||
| Communication and Connectivity | SIM card | Dual SIM (Mini-SIM) | Mini-SIM | |
| Network | Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2 | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 | ||
| Speed | Yes, 384 kbps | Yes, 384 kbps | ||
| GPRS | Class 12 | Yes | ||
| Edge | Class 12 | Class 10 | ||
| Wi-Fi | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11i/e/g, VoIP over WLAN | ||
| GPS | No | No | ||
| NFC | ||||
| USB | microUSB 2.0 | Pop-Port | ||
| Bluetooth | Yes | 1.2 | ||
| Harmful irradiation | SAR EU - 0.88 W/kg (head) 0.60 W/kg (body) | SAR - 1.14 W/kg (head) 1.13 W/kg (body) SAR EU - 0.79 W/kg (head) | ||
| Music and Audio | Radio | No | ||
| Headphone jack | Yes | No | ||
| Others | Five-way scroll key | |||
| Other features | Dop | Sensors Proximity, gyro | , Infrared port - WMV/RV/MP4/3GP player -MP3/WMA/WAV/RA/AAC/M4A player -Document viewer (Word, Excel, PowerPoint, PDF) -Blackberry connectivity -Voice command/memo -Organizer -Printing | |
