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Brief information about compared phones: Nokia E51 , Oppo A7xNokia E51 2007 year of release. cpu 369 MHz ARM 11. screen 2". with resolution 240x320. Smartphone has 2 megapixel main camera . Oppo A7x 2018 year of release. cpu Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53). screen 6.3". with resolution 1080x2340. Smartphone has 16 megapixel front camera and 16 megapixel main camera . |
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| Display | Technology | TFT | LTPS IPS LCD | |
| Touchscreen | capacitive touchscreen | |||
| Display colors | 16M | 16M | ||
| Screen size | 2" inch | 6.3" inch | ||
| Screen area | 12.4 cm2 | 97.4 cm2 | ||
| Screen format | 4:3 (height:width) | 19.5:9 (height:width) | ||
| Screen to body ratio | 23.5% | 84.0% | ||
| Screen resolution | 240 x 320 px | 1080 x 2340 px | ||
| PPI /points per inch/ | 200 PPI | 409 PPI | ||
| Screen protection | To be confirmed | |||
| Camera and Video | Rear camera, main | 2 MP, Single | 16 MP, Dual | |
| Camera specs | 2 MP | 16 MP, f/1.8, 1/3.1, 1.0µm, PDAF -2 MP, f/2.4, depth sensor | ||
| Functions | HDR | |||
| Video | 320p@15fps | 1080p@30fps | ||
| Front camera, selfie | 0 MP, | 16 MP, Single | ||
| Specifications | 16 MP, f/2.0 | |||
| Performance | Operating system OS | Symbian OS 9.2, Series 60 v3.1 UI | Android 8.1 (Oreo); ColorOS 5.2 | |
| Chipset | Mediatek MT6771 Helio P60 (12 nm) | |||
| Processor CPU | 369 MHz ARM 11 | Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53) | ||
| Graphics processor GPU | Mali-G72 MP3 | |||
| External memory | microSD, up to 16 GB (dedicated slot) | microSD, up to 256 GB (dedicated slot) | ||
| Internal memory | 130 MB, 96 MB RAM | 128 GB, 512GB 4GB | ||
| Antutu 7 score | 140725 | |||
| General specs | Release date | 2007, September | 2018, September | |
| Dimensions (HxWxD) | 114.8 Х 46 Х 12 mm | 156.7 Х 74 Х 8 mm | ||
| Weight | 100 g | 169 g | ||
| Colors | Black, Silver | Starry Purple, Ice Flame Blue | ||
| Battery | 1050 mAh, Removable Li-Ion | 3500 mAh, Non-removable Li-Po | ||
| Approximate price | 120 EUR | 270 EUR | ||
| Battery life | Stand by time- Up to 310 h Talking time- Up to 4 h 20 min | |||
| 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 CDMA 800 & TD-SCDMA - China -3G - HSDPA 850 / 900 / 2100 -4G - LTE | ||
| Speed | HSPA 3.6/0.384 Mbps | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat13 600/100 Mbps | ||
| GPRS | Class 32 | Yes | ||
| Edge | Class 32 | Yes | ||
| Wi-Fi | Wi-Fi 802.11b/g, VoIP over WLAN | Wi-Fi 802.11 a/b/g/n, dual-band, WiFi Direct, hotspot | ||
| GPS | No | Yes, with A-GPS, GLONASS, BDS | ||
| NFC | ||||
| USB | miniUSB 2.0 | microUSB 2.0, USB On-The-Go | ||
| Bluetooth | 2.0, A2DP | 4.2, A2DP, LE | ||
| 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 | Active noise cancellation with dedicated mic | ||
| 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 Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass - Charging 5V/2A 10W - For China | |
