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Brief information about compared phones: Nokia 8 Sirocco , vivo X21 UDNokia 8 Sirocco 2018 year of release, cpu Octa-core (4x2.5 GHz Kryo & 4x1.8 GHz Kryo), screen 5.5", with resolution 1440x2560. Smartphone has 5 megapixel front camera and 12 megapixel main camera. vivo X21 UD 2018 year of release, cpu Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260), screen 6.28", with resolution 1080x2280. Smartphone has 12 megapixel front camera and 12 megapixel main camera. |
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| Display | Technology | P-OLED | Super AMOLED | |
| Touchscreen | capacitive touchscreen | capacitive touchscreen | ||
| Display colors | 16M | 16M | ||
| Screen size | 5.5" inch | 6.28" inch | ||
| Screen area | 83.4 cm2 | 98.4 cm2 | ||
| Screen format | 16:9 (height:width) | 19:9 (height:width) | ||
| Screen to body ratio | 81.1% | 85.2% | ||
| Screen resolution | 1440 x 2560 px | 1080 x 2280 px | ||
| PPI /points per inch/ | 534 PPI | 402 PPI | ||
| Screen protection | Corning Gorilla Glass 5 | |||
| Camera and Video | Rear camera, main | 12 MP, Dual | 12 MP, Dual | |
| Camera specs | 12 MP, f/1.8, 25mm (wide), 1/2.55'', 1.4µm, dual pixel PDAF -13 MP, f/2.6, 1/3.4'', 1.0µm, 2x optical zoom, AF | 12 MP, f/1.8, 1/2.55'', 1.4µm, dual pixel PDAF -5 MP, f/2.4, depth sensor | ||
| Functions | Zeiss optics, Dual-LED dual-tone flash, panorama, HDR | LED flash, HDR, panorama | ||
| Video | 1080p@30fps | 1080p@30fps | ||
| Front camera, selfie | 5 MP, Single | 12 MP, Single | ||
| Specifications | 5 MP, f/2.0, 1/4'', 1.4µm | 12 MP, f/2.0 | ||
| DxOMark Main Score | 84 | |||
| DxOMark Photo | 85 | |||
| DxOMark Video | 82 | |||
| Performance | Operating system OS | Android 8.0 (Oreo), upgradable to Android 9.0 (Pie); Android One | Android 8.1 (Oreo); Funtouch 4 | |
| Chipset | Qualcomm MSM8998 Snapdragon 835 (10 nm) | Qualcomm SDM660 Snapdragon 660 (14 nm) | ||
| Processor CPU | Octa-core (4x2.5 GHz Kryo & 4x1.8 GHz Kryo) | Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260) | ||
| Graphics processor GPU | Adreno 540 | Adreno 512 | ||
| External memory | No | microSD, up to 256 GB (uses SIM 2 slot) | ||
| Internal memory | 128 GB, 6 GB RAM | 128 GB, 6 GB RAM | ||
| Antutu 7 score | 207368 | 143592 | ||
| General specs | Release date | 2018, February | 2018, March | |
| Dimensions (HxWxD) | 140.9 Х 73 Х 7.5 mm | 154.5 Х 74.8 Х 7.4 mm | ||
| Weight | 177 g | 156.2 g | ||
| Colors | Black | Black, Ruby Red | ||
| Battery | 3260 mAh, Non-removable Li-Ion | 3200 mAh, Non-removable Li-Ion | ||
| Approximate price | 550 EUR | 550 EUR | ||
| Battery life | Stand by time- Up to 495 h (3G) Talking time- Up to 22 h (3G) Music play - Up to 11 h | |||
| Body build | Front/back Gorilla Glass 5, stainless steel frame | Front glass, aluminum body | ||
| Communication and Connectivity | SIM card | Single SIM (Nano-SIM)Dual SIM (Nano-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 (dual-SIM model only) CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 1900 / 2100 CDMA2000 1xEV-DO -4G - LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800), 28(700), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100), 2(1900), 3(1800), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) | ||
| Speed | HSPA 42.2/5.76 Mbps, LTE-A (3CA) Cat12 600/150 Mbps | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps | ||
| GPRS | Yes | Yes | ||
| Edge | Yes | Yes | ||
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot | ||
| GPS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS, GLONASS | ||
| NFC | Yes | |||
| USB | 3.1, Type-C 1.0 reversible connector | microUSB 2.0, USB On-The-Go | ||
| Bluetooth | 5.0, A2DP, LE | 5.0, A2DP, LE | ||
| Harmful irradiation | SAR EU - 0.59 W/kg (head) 1.54 W/kg (body) | |||
| Music and Audio | Radio | No | FM radio | |
| Headphone jack | No | Yes | ||
| Others | Always-on display | 32-bit/192kHz audio -Active noise cancellation with dedicated mic | ||
| Other features | Dop | Sensors Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass, barometer - Fast battery charging (Quick Charge 4.0) -Wireless charging (Qi) - IP67 dust/water resistant (up to 1.5m for 30 mins) | Sensors Fingerprint (under display), accelerometer, proximity, compass - Fast battery charging | |
