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Brief information about compared phones: BLU J4 , BLU Studio XBLU J4 2019 year of release. cpu Quad-core 1.3 GHz Cortex-A7. screen 5.5". with resolution 720x1440. Smartphone has 8 megapixel front camera and 8 megapixel main camera . BLU Studio X 2015 year of release. cpu Quad-core 1.3 GHz Cortex-A7. screen 5". with resolution 720x1280. Smartphone has 2 megapixel front camera and 8 megapixel main camera . |
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| Display | Technology | IPS LCD | IPS LCD | |
| Touchscreen | capacitive touchscreen | capacitive touchscreen | ||
| Display colors | 16M | 16M | ||
| Screen size | 5.5" inch | 5" inch | ||
| Screen area | 78.1 cm2 | 68.9 cm2 | ||
| Screen format | 18:9 (height:width) | 16:9 (height:width) | ||
| Screen to body ratio | 71.5% | 66.5% | ||
| Screen resolution | 720 x 1440 px | 720 x 1280 px | ||
| PPI /points per inch/ | 293 PPI | 294 PPI | ||
| Camera and Video | Rear camera, main | 8 MP, Single | 8 MP, Single | |
| Camera specs | 8 MP, AF | 8 MP, AF | ||
| Functions | LED flash | LED flash | ||
| Video | 720p@30fps | 1080p@30fps | ||
| Front camera, selfie | 8 MP, Single | 2 MP, Single | ||
| Specifications | 8 MP | 2 MP | ||
| Performance | Operating system OS | Android 8.1 Oreo (Go edition) | Android 4.4.2 (KitKat), upgradable to 5.0 (Lollipop) | |
| Processor CPU | Quad-core 1.3 GHz Cortex-A7 | Quad-core 1.3 GHz Cortex-A7 | ||
| Graphics processor GPU | Mali-400 | Mali-400 | ||
| External memory | microSDXC | microSD, up to 64 GB | ||
| Internal memory | 32GB 1GB RAM | 8 GB, 1 GB RAM | ||
| General specs | Release date | 2019, October | 2015, January | |
| Dimensions (HxWxD) | 151 Х 72.3 Х 10 mm | 144 Х 72 Х 10.5 mm | ||
| Weight | 158 g | 154 g | ||
| Colors | Blue, Black, Brown | Black, White, Blue, Gold, Pink | ||
| Battery | 2200 mAh, Removable Li-Po | 2100 mAh, Removable Li-Ion | ||
| Approximate price | 70 EUR | 120 EUR | ||
| Battery life | Stand by time- Up to 750 h (2G) / Up to 700 h (3G) Talking time- Up to 25 h (2G) / Up to 12 h (3G) | |||
| Communication and Connectivity | SIM card | Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Mini-SIM/ Micro-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 | ||
| Speed | HSPA 21.1/5.76 Mbps | HSPA 21.1/5.76 Mbps | ||
| GPRS | Yes | Yes | ||
| Edge | Yes | Yes | ||
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | ||
| GPS | Yes, with A-GPS | Yes, with A-GPS | ||
| NFC | ||||
| USB | microUSB 2.0 | microUSB 2.0 | ||
| Bluetooth | 4.1, A2DP, LE | 4.0, A2DP | ||
| Music and Audio | Radio | FM radio | Stereo FM radio | |
| Headphone jack | Yes | Yes | ||
| Other features | Dop | Sensors Accelerometer For USA | Sensors Accelerometer, gyro, proximity | |
