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Brief information about compared phones: Celkon A64 , Philips T539Celkon A64 2014 year of release. cpu Dual-core 1.2 GHz. screen 4". with resolution 320x480. Smartphone has 0 megapixel front camera and 2 megapixel main camera . Philips T539 2012 year of release. cpu . screen 4.3". with resolution 480x800. Smartphone has 5 megapixel main camera . |
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| Display | Technology | TFT | TFT | |
| Touchscreen | capacitive touchscreen | capacitive touchscreen | ||
| Display colors | 256K | |||
| Screen size | 4" inch | 4.3" inch | ||
| Screen area | 47.6 cm2 | 52.6 cm2 | ||
| Screen format | 3:2 (height:width) | 5:3 (height:width) | ||
| Screen to body ratio | 59.1% | 59.1% | ||
| Screen resolution | 320 x 480 px | 480 x 800 px | ||
| PPI /points per inch/ | 144 PPI | 217 PPI | ||
| Camera and Video | Rear camera, main | 2 MP, Single | 5 MP, Single | |
| Camera specs | 2 MP | 5 MP | ||
| Functions | LED flash | |||
| Video | Yes | 480p | ||
| Front camera, selfie | 0.3 MP, Single | 0 MP, | ||
| Specifications | VGA | |||
| Performance | Operating system OS | Android 4.2.2 (Jelly Bean) | Android 2.3 (Gingerbread) | |
| Processor CPU | Dual-core 1.2 GHz | |||
| External memory | microSD, up to 32 GB | microSD, up to 32 GB (dedicated slot) | ||
| Internal memory | 512 MB, 256 MB RAM | 512 MB | ||
| General specs | Release date | 2014 | 2012, November | |
| Dimensions (HxWxD) | 124 Х 65 Х 10.5 mm | 131 Х 68 Х 11.2 mm | ||
| Weight | 125.6 g | 0 g | ||
| Colors | White, Black | Black/Gold | ||
| Battery | 1400 mAh, Li-Ion | 1630 mAh, Removable Li-Ion | ||
| Battery life | Stand by time- Up to 150 h Talking time- Up to 8 h 20 min | Stand by time- Up to 240 h Talking time- Up to 6 h | ||
| Communication and Connectivity | SIM card | Dual SIM | Dual SIM (Mini-SIM) | |
| Network | Show all network frequencies: | Show all network frequencies: -2G - GSM 900 / 1800 / 1900 - SIM 1 & SIM 2 | ||
| Speed | HSPA | |||
| GPRS | Yes | Class 12 | ||
| Edge | Yes | Yes | ||
| Wi-Fi | Wi-Fi 802.11 b/g/n, hotspot | Wi-Fi 802.11 b/g, hotspot | ||
| GPS | Yes | Yes, with A-GPS | ||
| NFC | ||||
| USB | microUSB | 2.0 | ||
| Bluetooth | 2.0 | Yes | ||
| Harmful irradiation | SAR EU - 0.42 W/kg (head) 0.55 W/kg (body) | |||
| Music and Audio | Radio | FM radio | No | |
| Headphone jack | Yes | Yes | ||
| Other features | Dop | Sensors Accelerometer | Sensors Accelerometer, proximity - CMMB mobile TV | |
