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Brief information about compared phones: Oppo R1 R829T , vivo X51 5GOppo R1 R829T 2013 year of release, cpu Quad-core 1.3 GHz Cortex-A7, screen 5", with resolution 720x1280. Smartphone has 5 megapixel front camera and 8 megapixel main camera. vivo X51 5G 2020 year of release, cpu - Octa-core (1x2.4 GHz Kryo 475 Prime & 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver), screen 6.56", with resolution 1080x2376. Smartphone has 32 megapixel front camera and 48 megapixel main camera. |
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| Display | Technology | IPS LCD | AMOLED | |
| Touchscreen | capacitive touchscreen | capacitive touchscreen | ||
| Display colors | 16M | 16M | ||
| Screen size | 5" inch | 6.56" inc | ||
| Screen area | 68.9 cm2 | 104.6 cm2 | ||
| Screen format | 16:9 (height:width) | (height:width) | ||
| Screen to body ratio | 68.6% | 90.6% | ||
| Screen resolution | 720 x 1280 px | 1080 x 2376 px | ||
| PPI /points per inch/ | 294 PPI | |||
| Screen protection | Corning Gorilla Glass 3 | |||
| Camera and Video | Rear camera, main | 8 MP, Single | 48 MP, Quad | |
| Camera specs | 8 MP, AF | -48 MP, f/1.6, (wide), PDAF, laser AF, gimbal OIS -8 MP, f/3.4, 135mm (periscope telephoto), 1/4.0'', OIS, 5x optical zoom -13 MP, f/2.5, 50mm (portrait), 1/2.8'', 0.8µm, 2x optical zoom -8 MP, f/2.2, 120˚, 16mm (ultrawide), 1.12µm | ||
| Functions | LED flash, panorama, HDR | HDR | ||
| Video | 1080p@30fps | 1080p@30fps | ||
| Front camera, selfie | 5 MP, Single | 32 MP, Single | ||
| Specifications | 5 MP | 32 MP, f/2.5, 26mm (wide), 1/2.8'', 0.8µm | ||
| Performance | Operating system OS | Android 4.2.1 (Jelly Bean) | Android 10, Funtouch 10.0 | |
| Chipset | Mediatek MT6582 (28 nm) | - Qualcomm SM7250 Snapdragon 765G (7 nm) | ||
| Processor CPU | Quad-core 1.3 GHz Cortex-A7 | - Octa-core (1x2.4 GHz Kryo 475 Prime & 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver) | ||
| Graphics processor GPU | Mali-400MP2 | - Adreno 620 | ||
| External memory | No | No | ||
| Internal memory | 16 GB, 1 GB RAM | 256GB 8GB RAM | ||
| General specs | Release date | 2013, December | 2020, October 21 | |
| Dimensions (HxWxD) | 142.7 Х 70.4 Х 7.1 mm | 158.5 Х 72.8 Х 8 mm | ||
| Weight | 140 g | 181.5 g | ||
| Colors | White, Black | Gray | ||
| Battery | 2410 mAh, Non-removable Li-Ion | 4315 mAh, Li-Po, non-removable | ||
| Approximate price | 300 EUR | 780 EUR | ||
| Body build | Glass front, glass back, aluminum frame | |||
| Communication and Connectivity | SIM card | Dual SIM (Micro-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) | |
| Network | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 32, 38, 39, 40, 41, 66 -5G - 1, 77, 78 SA/NSA | ||
| Speed | HSPA | HSPA 42.2/5.76 Mbps, LTE-A, 5G | ||
| GPRS | Yes | Yes | ||
| Edge | Yes | Yes | ||
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, DLNA, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | ||
| GPS | Yes, with A-GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS | ||
| NFC | Yes | |||
| USB | microUSB 2.0 | USB Type-C 2.0, USB On-The-Go | ||
| Bluetooth | 4.0, A2DP | 5.1, A2DP, LE, aptX HD | ||
| Music and Audio | Radio | Stereo FM radio, RDS | No | |
| Headphone jack | Yes | No | ||
| Others | Active noise cancellation with dedicated mic | - HDR10+ -90Hz | ||
| Other features | Dop | Sensors Accelerometer, gyro, proximity | - Sensors - Fingerprint (under display, optical), accelerometer, gyro, proximity, compass, color temperature sensor - Fast charging 33W, 57% in 30 min | |
