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Brief information about compared phones: Amoi E850 , Coolpad RoarAmoi E850 2006 year of release. cpu Intel XScale PXA 272 312 MHz. screen 2.4". with resolution 204x320. Smartphone has 2 megapixel main camera . Coolpad Roar 2015 year of release. cpu Quad-core 1.3 GHz Cortex-A7. screen 4.5". with resolution 480x854. Smartphone has 2 megapixel front camera and 5 megapixel main camera . |
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| Display | Technology | TFT | IPS LCD | |
| Touchscreen | resistive touchscreen | capacitive touchscreen | ||
| Display colors | Super AMOLED | |||
| Screen size | 2.4" inch | 4.5" inch | ||
| Screen area | 16.8 cm2 | 55.8 cm2 | ||
| Screen format | 16:9 (height:width) | 16:9 (height:width) | ||
| Screen to body ratio | 130.6 g | 64.2% | ||
| Screen resolution | 204 x 320 px | 480 x 854 px | ||
| PPI /points per inch/ | 0 PPI | 218 PPI | ||
| Camera and Video | Rear camera, main | 2 MP, Single | 5 MP, Single | |
| Camera specs | 2 MP | 5 MP, AF | ||
| Functions | Dual-LED flash | LED flash | ||
| Video | Yes | Yes | ||
| Front camera, selfie | 0 MP, | 2 MP, Single | ||
| Specifications | Super AMOLED | 2 MP | ||
| Performance | Operating system OS | Microsoft Windows Mobile 5.0 for PocketPC Phone Edition | Android 5.1 (Lollipop) | |
| Chipset | Mediatek MT6580 (28 nm) | |||
| Processor CPU | Intel XScale PXA 272 312 MHz | Quad-core 1.3 GHz Cortex-A7 | ||
| Graphics processor GPU | Mali-400MP2 | |||
| External memory | microSD (dedicated slot) | microSD, up to 32 GB (dedicated slot) | ||
| Internal memory | 64 MB RAM, 128 MB ROM | 8 GB, 1 GB RAM | ||
| General specs | Release date | 2006, Q2 | 2015, November | |
| Dimensions (HxWxD) | 102 Х 54 Х 20 mm | 133 Х 65.4 Х 9 mm | ||
| Weight | 108 g | 0 g | ||
| Colors | Black | Black | ||
| Battery | 1100 mAh, Removable Li-Ion | 1800 mAh, Removable Li-Ion | ||
| Battery life | Stand by time- Up to 150 h Talking time- Up to 4 h | |||
| Communication and Connectivity | SIM card | Single SIM (Mini-SIM)Dual SIM (Mini-SIM/Micro-SIM | Nano-SIM | |
| Network | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2-3G - HSDPA 900 / 2100-4G - LTE | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 | ||
| Speed | Super AMOLED | HSPA | ||
| GPRS | Class 10 | Yes | ||
| Edge | panorama | Yes | ||
| Wi-Fi | panorama | Wi-Fi 802.11 b/g/n, hotspot | ||
| GPS | panorama | Yes, with A-GPS | ||
| NFC | Super AMOLED | |||
| USB | HSPA 21.1/5.76 Mbps | microUSB 2.0 | ||
| Bluetooth | Quad-core 1.25 GHz Cortex-A53 | 4.0, A2DP | ||
| Music and Audio | Radio | panorama | FM radio | |
| Headphone jack | panorama | Yes | ||
| Others | Handwriting recognition | |||
| Other features | Dop | Super AMOLED, Infrared port - Pocket Office -Media player -PC Sync -Voice memo -Organizer -World Time | Sensors Yes | |
