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Brief information about compared phones: Acer DX650 , Nokia E51Acer DX650 2009 year of release. cpu Samsung S3C 6410 533 MHz. screen 2.8". with resolution 240x320. Smartphone has 2 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 | resistive touchscreen | |||
| Display colors | 65K | 16M | ||
| Screen size | 2.8" inch | 2" inch | ||
| Screen area | 24.3 cm2 | 12.4 cm2 | ||
| Screen format | 4:3 (height:width) | 4:3 (height:width) | ||
| Screen to body ratio | 37.5% | 23.5% | ||
| Screen resolution | 240 x 320 px | 240 x 320 px | ||
| PPI /points per inch/ | 143 PPI | 200 PPI | ||
| Camera and Video | Rear camera, main | 2 MP, Single | 2 MP, Single | |
| Camera specs | 2 MP | 2 MP | ||
| Video | panorama | 320p@15fps | ||
| Front camera, selfie | 0 MP, | 0 MP, | ||
| Specifications | Super AMOLED | |||
| Performance | Operating system OS | Microsoft Windows Mobile 6.1 Professional | Symbian OS 9.2, Series 60 v3.1 UI | |
| Processor CPU | Samsung S3C 6410 533 MHz | 369 MHz ARM 11 | ||
| External memory | microSD (dedicated slot) | microSD, up to 16 GB (dedicated slot) | ||
| Internal memory | Super AMOLED | 130 MB, 96 MB RAM | ||
| General specs | Release date | 2009, June | 2007, September | |
| Dimensions (HxWxD) | 109.6 Х 59 Х 15.6 mm | 114.8 Х 46 Х 12 mm | ||
| Weight | 133 g | 100 g | ||
| Colors | Black | Black, Silver | ||
| Battery | 1260 mAh, Removable Li-Ion | 1050 mAh, Removable Li-Ion | ||
| Approximate price | 150 EUR | 120 EUR | ||
| Battery life | Stand by time- Up to 150 h Talking time- Up to 4 h | Stand by time- Up to 310 h Talking time- Up to 4 h 20 min | ||
| Communication and Connectivity | SIM card | Single SIM (Mini-SIM)Dual SIM (Mini-SIM/Micro-SIM | Mini-SIM | |
| Network | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2-3G - HSDPA 900 / 2100-4G - LTE | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 | ||
| Speed | Super AMOLED | HSPA 3.6/0.384 Mbps | ||
| GPRS | Class 10 | Class 32 | ||
| Edge | Class 10 | Class 32 | ||
| Wi-Fi | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11b/g, VoIP over WLAN | ||
| GPS | Yes, SiRF Star III chipset | No | ||
| NFC | Super AMOLED | |||
| USB | miniUSB | miniUSB 2.0 | ||
| Bluetooth | microUSB 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) | |||
| Music and Audio | Radio | FM radio | FM radio | |
| Headphone jack | panorama | No | ||
| Others | Secondary 1.27'' OLED display (128 x 96 pixel resolution) -Handwriting recognition | Five-way scroll key -Downloadable themes | ||
| Other features | Dop | Sensors Accelerometer Pocket Office -Voice memo -MP3 player | , 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 | |
