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Brief information about compared phones: Acer Stream , Celkon A66Acer Stream 2010 year of release. cpu 1.0 GHz Scorpion. screen 3.7". with resolution 480x800. Smartphone has 5 megapixel main camera . Celkon A66 2014 year of release. cpu Dual-core 1.2 GHz. screen 4.5". with resolution 480x854. Smartphone has 0 megapixel front camera and 3 megapixel main camera . |
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| Display | Technology | Super AMOLED | TFT | |
| Touchscreen | capacitive touchscreen | capacitive touchscreen | ||
| Display colors | 16M | |||
| Screen size | 3.7" inch | 4.5" inch | ||
| Screen area | 39.0 cm2 | 55.8 cm2 | ||
| Screen format | 5:3 (height:width) | 16:9 (height:width) | ||
| Screen to body ratio | 51.8% | 61.1% | ||
| Screen resolution | 480 x 800 px | 480 x 854 px | ||
| PPI /points per inch/ | 252 PPI | 218 PPI | ||
| Camera and Video | Rear camera, main | 5 MP, Single | 3.15 MP, Single | |
| Camera specs | 5 MP, AF | 3.15 MP | ||
| Functions | LED flash | |||
| Video | 720p@24fps | Yes | ||
| Front camera, selfie | 0 MP, | 0.3 MP, Single | ||
| Specifications | Super AMOLED | VGA | ||
| Performance | Operating system OS | Android 2.1 (Eclair) | Android 4.1.2 (Jelly Bean) | |
| Chipset | Qualcomm QSD8250 Snapdragon S1 | |||
| Processor CPU | 1.0 GHz Scorpion | Dual-core 1.2 GHz | ||
| Graphics processor GPU | Adreno 200 | |||
| External memory | microSD, up to 32 GB (dedicated slot), 8 GB included | microSD, up to 32 GB | ||
| Internal memory | 32 GB, 512 MB RAM - Liquid M2208 GB | 4 GB, 512 MB RAM | ||
| General specs | Release date | 2010, May | 2014 | |
| Dimensions (HxWxD) | 119.5 Х 63 Х 11.2 mm | 136 Х 67.2 Х 11 mm | ||
| Weight | 140 g | 98 g | ||
| Colors | Black | White, Black | ||
| Battery | 1400 mAh, Removable Li-Ion | 2000 mAh, Li-Ion | ||
| Approximate price | 130 EUR | |||
| Battery life | Stand by time- Up to 400 h (3G) Talking time- Up to 5 h (3G) | Stand by time- Up to 160 h Talking time- Up to 5 h | ||
| Communication and Connectivity | SIM card | Single SIM (Mini-SIM)Dual SIM (Mini-SIM/Micro-SIM | Dual 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: | ||
| Speed | HSPA 7.2/2 Mbps | |||
| GPRS | Class 10 | Yes | ||
| Edge | Class 10 | Yes | ||
| Wi-Fi | Wi-Fi 802.11 b/g/n, DLNA & UPnP technology | Wi-Fi 802.11 b/g/n, hotspot | ||
| GPS | Yes, with A-GPS | Yes | ||
| NFC | Super AMOLED | |||
| USB | microUSB 2.0 | microUSB | ||
| Bluetooth | Wi-Fi 802.11 a/b/g/n/ac, A2DP | 2.0 | ||
| Harmful irradiation | SAR EU - 0.38 W/kg (head) 0.47 W/kg (body) | |||
| Music and Audio | Radio | Stereo FM radio, RDS | FM radio | |
| Headphone jack | Yes | Yes | ||
| Others | Dedicated music keys -Dolby Mobile | |||
| Other features | Dop | Sensors Accelerometer, proximity, compass - Micro HDMI port -Dedicated search key -MP3/WAV/WMA/eAAC+ player -MP4/Xvid/WMV/H.264 player -Document viewer -Voice memo -Predictive text input - Also known as Acer Liquid Stream | Sensors Accelerometer, proximity | |
