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Brief information about compared phones: Nokia E7 , ZTE V821Nokia E7 2010 year of release. cpu 680 MHz ARM 11. screen 4". with resolution 360x640. Smartphone has 0 megapixel front camera and 8 megapixel main camera . ZTE V821 2011 year of release. cpu 416 MHz. screen 0". with resolution 320x240. Smartphone has 2 megapixel main camera . |
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| Display | Technology | AMOLED | TFT | |
| Touchscreen | capacitive touchscreen | resistive touchscreen | ||
| Display colors | 16M | 65K | ||
| Screen size | 4" inch | 0" inch | ||
| Screen area | 44.1 cm2 | cm2 | ||
| Screen format | 16:9 (height:width) | 4:3 (height:width) | ||
| Screen to body ratio | 57.1% | % | ||
| Screen resolution | 360 x 640 px | 320 x 240 px | ||
| PPI /points per inch/ | 184 PPI | 0 PPI | ||
| Screen protection | Corning Gorilla Glass | |||
| Camera and Video | Rear camera, main | 8 MP, Single | 2 MP, Single | |
| Camera specs | 8 MP | 2 MP, AF | ||
| Functions | Dual-LED flash | |||
| Video | 720p@25fps, 720p@30fps (via SW update) | Yes | ||
| Front camera, selfie | 0.3 MP, Single | 0 MP, | ||
| Specifications | VGA | |||
| Performance | Operating system OS | Symbian^3, upgradable to Nokia Belle OS | Android 2.2 (Froyo) | |
| Chipset | Mediatek MT6516 | |||
| Processor CPU | 680 MHz ARM 11 | 416 MHz | ||
| Graphics processor GPU | Broadcom BCM2727 | |||
| External memory | No | microSD, up to 32 GB (dedicated slot) | ||
| Internal memory | 16 GB, 256 MB RAM, 1 GB ROM | 256 MB | ||
| General specs | Release date | 2010, September | 2011, June | |
| Dimensions (HxWxD) | 123.7 Х 62.4 Х 13.6 mm | 116 Х 56.5 Х 11.8 mm | ||
| Weight | 176 g | 120 g | ||
| Colors | Dark Grey, Silver White, Green, Blue, Orange | Black | ||
| Battery | 1200 mAh, Non-removable Li-Ion | 0 mAh, | ||
| Approximate price | 150 EUR | 220 EUR | ||
| Battery life | Stand by time- Up to 432 h (2G) / Up to 480 h (3G) Talking time- Up to 9 h (2G) / Up to 5 h (3G) | |||
| 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: | ||
| Speed | HSPA 10.2/2 Mbps | |||
| GPRS | Class 32 | Yes | ||
| Edge | Class 32 | Yes | ||
| Wi-Fi | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 b/g, hotspot | ||
| GPS | Yes, with A-GPS; Ovi Maps 3.0 | Yes, with A-GPS | ||
| NFC | ||||
| USB | microUSB 2.0, USB Host | microUSB 2.0 | ||
| Bluetooth | 3.0, A2DP | 2.1, A2DP | ||
| Harmful irradiation | SAR - 0.93 W/kg (head) 1.23 W/kg (body) SAR EU - 0.56 W/kg (head) | |||
| Music and Audio | Radio | Stereo FM radio, RDS | FM radio | |
| Headphone jack | Yes | Yes | ||
| Others | Nokia ClearBlack display | |||
| Other features | Dop | Sensors Accelerometer, proximity, compass - TV-out (720p video) via HDMI and composite -Dolby Digital Plus via HDMI -MP3/WAV/eAAC+/WMA player -MP4/H.264/WMV player -Voice command/dial -Document editor (Word, Excel, PowerPoint, PDF) -Video/photo editor -Voice memo/dial -Predictive text input | MP4/H.264 player -MP3/WAV/eAAC+ player -Organizer -Voice memo -Predictive text input | |
