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Brief information about compared phones: Nokia E7 , Oppo A31Nokia 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 . Oppo A31 2020 year of release. cpu Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53). screen 6.5". with resolution 720x1600. Smartphone has 8 megapixel front camera and 12 megapixel main camera . |
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| Display | Technology | AMOLED | IPS LCD | |
| Touchscreen | capacitive touchscreen | capacitive touchscreen | ||
| Display colors | 16M | 16M | ||
| Screen size | 4" inch | 6.5" inch | ||
| Screen area | 44.1 cm2 | 102.0 cm2 | ||
| Screen format | 16:9 (height:width) | 20:9 (height:width) | ||
| Screen to body ratio | 57.1% | 82.4% | ||
| Screen resolution | 360 x 640 px | 720 x 1600 px | ||
| PPI /points per inch/ | 184 PPI | 270 PPI | ||
| Screen protection | Corning Gorilla Glass | |||
| Camera and Video | Rear camera, main | 8 MP, Single | 12 MP, Triple | |
| Camera specs | 8 MP | 12 MP, f/1.8, (wide), PDAF -2 MP, f/2.4, 27mm (macro), 1/5.0'', 1.75µm -2 MP, (depth) | ||
| Functions | Dual-LED flash | HDR | ||
| Video | 720p@25fps, 720p@30fps (via SW update) | 1080p@30fps | ||
| Front camera, selfie | 0.3 MP, Single | 8 MP, Single | ||
| Specifications | VGA | 8 MP, f/2.0 | ||
| Performance | Operating system OS | Symbian^3, upgradable to Nokia Belle OS | Android 9.0 (Pie); ColorOS 6.1 | |
| Chipset | Mediatek MT6765V/CB Helio P35 (12nm) | |||
| Processor CPU | 680 MHz ARM 11 | Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53) | ||
| Graphics processor GPU | Broadcom BCM2727 | PowerVR GE8320 | ||
| External memory | No | microSDXC (dedicated slot) | ||
| Internal memory | 16 GB, 256 MB RAM, 1 GB ROM | 128GB 4GB RAM | ||
| Antutu 8 score | 105221 | |||
| General specs | Release date | 2010, September | 2020, February 13 | |
| Dimensions (HxWxD) | 123.7 Х 62.4 Х 13.6 mm | 163.9 Х 75.5 Х 8.3 mm | ||
| Weight | 176 g | 180 g | ||
| Colors | Dark Grey, Silver White, Green, Blue, Orange | Fantasy White, Mystery Black | ||
| Battery | 1200 mAh, Non-removable Li-Ion | 4230 mAh, Non-removable Li-Po | ||
| Approximate price | 150 EUR | 180 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) | |||
| Body build | Glass front, plastic back, plastic frame | |||
| Communication and Connectivity | SIM card | Mini-SIM | Dual SIM (Nano-SIM, dual stand-by) | |
| 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 -3G - HSDPA 850 / 900 / 2100 -4G - LTE (unspecified) | ||
| Speed | HSPA 10.2/2 Mbps | HSPA 42.2/5.76 Mbps, LTE-A | ||
| GPRS | Class 32 | Yes | ||
| Edge | Class 32 | Yes | ||
| Wi-Fi | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | ||
| GPS | Yes, with A-GPS; Ovi Maps 3.0 | Yes, with A-GPS, BDS | ||
| NFC | ||||
| USB | microUSB 2.0, USB Host | microUSB 2.0, USB On-The-Go | ||
| Bluetooth | 3.0, A2DP | 5.0, A2DP, LE | ||
| 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 | 480 nits typ. brightness | ||
| 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 | Sensors Fingerprint (rear-mounted), accelerometer, proximity, compass | |
