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Brief information about compared phones: Nokia E51 , Nokia N81Nokia E51 2007 year of release. cpu 369 MHz ARM 11. screen 2". with resolution 240x320. Smartphone has 2 megapixel main camera . Nokia N81 2007 year of release. cpu 369 MHz ARM 11. screen 2.4". with resolution 240x320. Smartphone has 0 megapixel front camera and 2 megapixel main camera . |
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| Display | Technology | TFT | TFT | |
| Touchscreen | ||||
| Display colors | 16M | 16M | ||
| Screen size | 2" inch | 2.4" inch | ||
| Screen area | 12.4 cm2 | 17.8 cm2 | ||
| Screen format | 4:3 (height:width) | 4:3 (height:width) | ||
| Screen to body ratio | 23.5% | 35.0% | ||
| Screen resolution | 240 x 320 px | 240 x 320 px | ||
| PPI /points per inch/ | 200 PPI | 167 PPI | ||
| Camera and Video | Rear camera, main | 2 MP, Single | 2 MP, Single | |
| Camera specs | 2 MP | 2 MP | ||
| Functions | LED flash | |||
| Video | 320p@15fps | 320p@15fps | ||
| Front camera, selfie | 0 MP, | 0.3 MP, Single | ||
| Specifications | CIF videocall camera | |||
| Performance | Operating system OS | Symbian OS 9.2, Series 60 v3.1 UI | Symbian OS 9.2, Series 60 v3.1 UI | |
| Processor CPU | 369 MHz ARM 11 | 369 MHz ARM 11 | ||
| External memory | microSD, up to 16 GB (dedicated slot) | microSD, up to 8 GB (dedicated slot), 2 GB included | ||
| Internal memory | 130 MB, 96 MB RAM | 12 MB, 96 MB RAM | ||
| General specs | Release date | 2007, September | 2007, August | |
| Dimensions (HxWxD) | 114.8 Х 46 Х 12 mm | 102 Х 50 Х 17.9 mm | ||
| Weight | 100 g | 140 g | ||
| Colors | Black, Silver | Cobalt blue, Graphite Grey | ||
| Battery | 1050 mAh, Removable Li-Ion | 1050 mAh, Removable Li-Po | ||
| Approximate price | 120 EUR | 200 EUR | ||
| Battery life | Stand by time- Up to 310 h Talking time- Up to 4 h 20 min | Stand by time- Up to 410 h Talking time- Up to 4 h (2G) / 3 h (3G) | ||
| Communication and Connectivity | SIM card | Mini-SIM | Mini-SIM | |
| Network | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 | ||
| Speed | HSPA 3.6/0.384 Mbps | Yes, 384 kbps | ||
| GPRS | Class 32 | Class 10 | ||
| Edge | Class 32 | Yes | ||
| Wi-Fi | Wi-Fi 802.11b/g, VoIP over WLAN | Wi-Fi 802.11b/g with UPnP | ||
| GPS | No | No | ||
| NFC | ||||
| USB | miniUSB 2.0 | microUSB 2.0 | ||
| Bluetooth | 2.0, A2DP | 2.0, A2DP | ||
| Harmful irradiation | SAR - 1.38 W/kg (head) 0.75 W/kg (body) SAR EU - 1.47 W/kg (head) | SAR - 0.73 W/kg (head) 0.60 W/kg (body) SAR EU - 0.81 W/kg (head) | ||
| Music and Audio | Radio | FM radio | Stereo FM radio | |
| Headphone jack | No | Yes | ||
| Others | Five-way scroll key -Downloadable themes | Touch-sensitive Navi wheel | ||
| Other features | Dop | , 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 | MP3/AAC/MP4 player -Predictive text input -Push to talk -Voice dial/memo -Organizer | |
