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Brief information about compared phones: BLU J4 , O2 XDABLU 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 . O2 XDA 2003 year of release. cpu Intel Strong PXA263 400 MHz. screen 3.5". with resolution 240x320. |
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| Display | Technology | IPS LCD | TFT | |
| Touchscreen | capacitive touchscreen | resistive touchscreen | ||
| Display colors | 16M | 4096 | ||
| Screen size | 5.5" inch | 3.5" inch | ||
| Screen area | 78.1 cm2 | 37.9 cm2 | ||
| Screen format | 18:9 (height:width) | 4:3 (height:width) | ||
| Screen to body ratio | 71.5% | 40.3% | ||
| Screen resolution | 720 x 1440 px | 240 x 320 px | ||
| PPI /points per inch/ | 293 PPI | 114 PPI | ||
| Camera and Video | Rear camera, main | 8 MP, Single | 0 MP, | |
| Camera specs | 8 MP, AF | |||
| Functions | LED flash | |||
| Video | 720p@30fps | |||
| Front camera, selfie | 8 MP, Single | 0 MP, | ||
| Specifications | 8 MP | |||
| Performance | Operating system OS | Android 8.1 Oreo (Go edition) | Microsoft Windows PocketPC | |
| Processor CPU | Quad-core 1.3 GHz Cortex-A7 | Intel Strong PXA263 400 MHz | ||
| Graphics processor GPU | Mali-400 | |||
| External memory | microSDXC | MMC/SD | ||
| Internal memory | 32GB 1GB RAM | 64 MB RAM, 32 MB ROM | ||
| General specs | Release date | 2019, October | 2003 | |
| Dimensions (HxWxD) | 151 Х 72.3 Х 10 mm | 129 Х 73 Х 18 mm | ||
| Weight | 158 g | 201 g | ||
| Colors | Blue, Black, Brown | |||
| Battery | 2200 mAh, Removable Li-Po | 0 mAh, | ||
| Approximate price | 70 EUR | |||
| Battery life | Stand by time- Up to 150 h Talking time- Up to 3 h 30 min | |||
| Communication and Connectivity | SIM card | Dual SIM (Nano-SIM, dual stand-by) | Mini-SIM | |
| Network | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | Show all network frequencies: | ||
| Speed | HSPA 21.1/5.76 Mbps | |||
| GPRS | Yes | Class 8 | ||
| Edge | Yes | No | ||
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | No | ||
| GPS | Yes, with A-GPS | No | ||
| NFC | ||||
| USB | microUSB 2.0 | Proprietary | ||
| Bluetooth | 4.1, A2DP, LE | No | ||
| Music and Audio | Radio | FM radio | No | |
| Headphone jack | Yes | No | ||
| Other features | Dop | Sensors Accelerometer For USA | , Infrared port - Pocket Office -Media player -Voice memo - Produced by HTC. Functionally identical to Qtek 1010. | |
