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Brief information about compared phones: BLU Grand Max , Celkon A20BLU Grand Max 2017 year of release. cpu Quad-core 1.3 GHz Cortex-A7. screen 5". with resolution 720x1280. Smartphone has 8 megapixel front camera and 8 megapixel main camera . Celkon A20 2013 year of release. cpu Dual-core 1.2 GHz. screen 4". with resolution 480x800. Smartphone has 0 megapixel front camera and 3 megapixel main camera . |
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| Display | Technology | IPS LCD | TFT | |
| Touchscreen | capacitive touchscreen | capacitive touchscreen | ||
| Display colors | 16M | |||
| Screen size | 5" inch | 4" inch | ||
| Screen area | 68.9 cm2 | 45.5 cm2 | ||
| Screen format | 16:9 (height:width) | 5:3 (height:width) | ||
| Screen to body ratio | 65.9% | % | ||
| Screen resolution | 720 x 1280 px | 480 x 800 px | ||
| PPI /points per inch/ | 294 PPI | 233 PPI | ||
| Camera and Video | Rear camera, main | 8 MP, Single | 3.15 MP, Single | |
| Camera specs | 8 MP, AF | 3.15 MP | ||
| Functions | LED flash | |||
| Video | 1080p@30fps | Yes | ||
| Front camera, selfie | 8 MP, Single | 0.3 MP, Single | ||
| Specifications | 8 MP | VGA | ||
| Performance | Operating system OS | Android 6.0 (Marshmallow) | Android 4.2.0 (Jelly Bean) | |
| Chipset | Mediatek MT6580 (28 nm) | |||
| Processor CPU | Quad-core 1.3 GHz Cortex-A7 | Dual-core 1.2 GHz | ||
| Graphics processor GPU | Mali-400MP2 | |||
| External memory | microSD, up to 64 GB | microSD, up to 32 GB (dedicated slot) | ||
| Internal memory | 8 GB, 1 GB RAM | 256 MB, 512 MB RAM | ||
| General specs | Release date | 2017, January | 2013, August | |
| Dimensions (HxWxD) | 145 Х 72.1 Х 7.8 mm | Х Х mm | ||
| Weight | 154 g | 0 g | ||
| Colors | Gold, Gray, Rose Gold | Black | ||
| Battery | 2200 mAh, Non-removable Li-Po | 1500 mAh, Li-Ion | ||
| Approximate price | 60 EUR | |||
| Battery life | Stand by time- Up to 700 h (2G) / Up to 650 h (3G) Talking time- Up to 24 h (2G) / Up to 14 h (3G) | |||
| Communication and Connectivity | SIM card | Dual SIM (Micro-SIM/Nano-SIM) | Dual SIM (Mini-SIM) | |
| Network | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2 | ||
| Speed | HSPA 21.1/5.76 Mbps | Yes, 384 kbps | ||
| GPRS | Yes | Class 12 | ||
| Edge | Yes | Class 12 | ||
| Wi-Fi | Wi-Fi 802.11 b/g/n, hotspot | Wi-Fi 802.11 b/g/n | ||
| GPS | Yes, with A-GPS | No | ||
| NFC | ||||
| USB | microUSB 2.0 | microUSB 2.0 | ||
| Bluetooth | 4.0, A2DP | Yes | ||
| Harmful irradiation | SAR EU - 0.88 W/kg (head) 0.60 W/kg (body) | |||
| Music and Audio | Radio | |||
| Headphone jack | Yes | Yes | ||
| Other features | Dop | Sensors Accelerometer, gyro, proximity | Sensors Proximity, gyro | |
