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Brief information about compared phones: Allview E4 , Oppo R15Allview E4 2015 year of release. cpu Octa-core 1.3 GHz Cortex-A53. screen 5.5". with resolution 720x1280. Smartphone has 5 megapixel front camera and 13 megapixel main camera . Oppo R15 2018 year of release. cpu Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53). screen 6.28". with resolution 1080x2280. Smartphone has 20 megapixel front camera and 16 megapixel main camera . |
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| Display | Technology | IPS LCD | AMOLED | |
| Touchscreen | capacitive touchscreen | capacitive touchscreen | ||
| Display colors | Super AMOLED | 16M | ||
| Screen size | 5.5" inch | 6.28" inch | ||
| Screen area | 68.9 cm2 | 98.9 cm2 | ||
| Screen format | 16:9 (height:width) | 19:9 (height:width) | ||
| Screen to body ratio | 143.5 Х 69.8 Х 8 mm | 84.8% | ||
| Screen resolution | 720 x 1280 px | 1080 x 2280 px | ||
| PPI /points per inch/ | 294 PPI | 401 PPI | ||
| Screen protection | Corning Gorilla Glass 5 | |||
| Camera and Video | Rear camera, main | 13 MP, Single | 16 MP, Dual | |
| Camera specs | 13 MP, AF | 16 MP, f/1.7, 1/2.6'', 1.22µm, PDAF -5 MP, f/2.2, depth sensor | ||
| Functions | Dual-LED flash | LED flash, HDR, panorama | ||
| Video | 1080p@30fps | 1080p@30fps | ||
| Front camera, selfie | 5 MP, Single | 20 MP, Single | ||
| Specifications | 5 MP | 20 MP, f/2.0 | ||
| Performance | Operating system OS | Android 5.1 (Lollipop) | Android 8.1 (Oreo); ColorOS 5 | |
| Chipset | Mediatek MT6753 (28 nm) | Mediatek MT6771 Helio P60 (12 nm) | ||
| Processor CPU | Octa-core 1.3 GHz Cortex-A53 | Octa-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53) | ||
| Graphics processor GPU | Mali-T720MP3 | Mali-G72 MP3 | ||
| External memory | microSD, up to 32 GB (dedicated slot) | microSD, up to 256 GB (uses SIM 2 slot) | ||
| Internal memory | 16 GB, 2 GB RAM | 128 GB, 4/6 GB RAM | ||
| Antutu 7 score | 23156 | 140520 | ||
| GeekBench 4 Single Core | 1928 | |||
| GeekBench 4 Multi-Core | 4904 | |||
| General specs | Release date | 2015, September | 2018, March | |
| Dimensions (HxWxD) | 140.7 Х 70.2 Х 8.6 mm | 155.1 Х 75.2 Х 7.4 mm | ||
| Weight | 130 g | 175 g | ||
| Colors | Black, White | Hot Red, Snow White, Star Purple, Fantasy Pink | ||
| Battery | 2100 mAh, Removable Li-Po | 3450 mAh, Non-removable Li-Po | ||
| Approximate price | 240 EUR | 460 EUR | ||
| Battery life | Stand by time- Up to 210 h Talking time- Up to 9 h 30 min | |||
| Body build | Front glass, aluminum body | |||
| Communication and Connectivity | SIM card | Single SIM (Micro-SIM)Dual SIM (Micro-SIM, dual stand-by) | Hybrid Dual SIM (Nano-SIM, dual stand-by) | |
| Network | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2-3G - HSDPA 900 / 2100-4G - LTE band 2(1900), 3(1800), 20(800), 38(2600) | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) | ||
| Speed | HSPA 21.1/5.76 Mbps, LTE Cat4 150/50 Mbps | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat13 600/100 Mbps | ||
| GPRS | Class 12 | Yes | ||
| Edge | Class 10 | Yes | ||
| Wi-Fi | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot | ||
| GPS | Yes, with A-GPS | Yes, with A-GPS, GLONASS | ||
| NFC | Super AMOLED | |||
| USB | microUSB 2.0 | microUSB 2.0, USB On-The-Go | ||
| Bluetooth | 4.0, A2DP, EDR | 4.2, A2DP, LE, EDR | ||
| Harmful irradiation | SAR EU - 1.23 W/kg (head) | |||
| Music and Audio | Radio | FM radio | No | |
| Headphone jack | Yes | Yes | ||
| Others | Active noise cancellation with dedicated mic | |||
| Other features | Dop | Sensors Accelerometer, proximity, compass | Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass - Fast battery charging: VOOC Flash Charge 5V/4A | |
