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Brief information about compared phones: Nokia E51 , verykool RS90Nokia E51 2007 year of release. cpu 369 MHz ARM 11. screen 2". with resolution 240x320. Smartphone has 2 megapixel main camera . verykool RS90 2013 year of release. cpu Dual-core 1.2 GHz. screen 4.5". with resolution 540x960. Smartphone has 0 megapixel front camera and 5 megapixel main camera . |
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| Display | Technology | TFT | IPS LCD | |
| Touchscreen | capacitive touchscreen | |||
| Display colors | 16M | |||
| Screen size | 2" inch | 4.5" inch | ||
| Screen area | 12.4 cm2 | 55.8 cm2 | ||
| Screen format | 4:3 (height:width) | 16:9 (height:width) | ||
| Screen to body ratio | 23.5% | 51.3% | ||
| Screen resolution | 240 x 320 px | 540 x 960 px | ||
| PPI /points per inch/ | 200 PPI | 245 PPI | ||
| Screen protection | Corning Gorilla Glass | |||
| Camera and Video | Rear camera, main | 2 MP, Single | 5 MP, Single | |
| Camera specs | 2 MP | 5 MP | ||
| Functions | LED flash | |||
| Video | 320p@15fps | Yes | ||
| Front camera, selfie | 0 MP, | 0.3 MP, Single | ||
| Specifications | VGA | |||
| Performance | Operating system OS | Symbian OS 9.2, Series 60 v3.1 UI | Android 4.0 (Ice Cream Sandwich) | |
| Processor CPU | 369 MHz ARM 11 | Dual-core 1.2 GHz | ||
| External memory | microSD, up to 16 GB (dedicated slot) | microSD, up to 32 GB (dedicated slot) | ||
| Internal memory | 130 MB, 96 MB RAM | 2 GB | ||
| General specs | Release date | 2007, September | 2013 | |
| Dimensions (HxWxD) | 114.8 Х 46 Х 12 mm | 144 Х 75.6 Х 12.1 mm | ||
| Weight | 100 g | 201 g | ||
| Colors | Black, Silver | Black | ||
| Battery | 1050 mAh, Removable Li-Ion | 1800 mAh, Removable Li-Ion | ||
| Approximate price | 120 EUR | |||
| Battery life | Stand by time- Up to 310 h Talking time- Up to 4 h 20 min | Stand by time- Up to 192 h Talking time- Up to 9 h | ||
| Communication and Connectivity | SIM card | Mini-SIM | Dual SIM (Mini-SIM) | |
| Network | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | ||
| Speed | HSPA 3.6/0.384 Mbps | HSPA 7.2/5.76 Mbps | ||
| GPRS | Class 32 | Yes | ||
| Edge | Class 32 | Yes | ||
| Wi-Fi | Wi-Fi 802.11b/g, VoIP over WLAN | Wi-Fi 802.11 b/g, hotspot | ||
| GPS | No | Yes, with A-GPS | ||
| NFC | ||||
| USB | miniUSB 2.0 | 2.0 | ||
| Bluetooth | 2.0, A2DP | 2.1 | ||
| 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 | No | Yes | ||
| Others | Five-way scroll key -Downloadable themes | |||
| 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 | Sensors Accelerometer, proximity - IP67 dust/water resistant (up to 1m for 30 mins) -Flashlight | |
