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Brief information about compared phones: Celkon A66 , Palm CentroCelkon 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 . Palm Centro 2008 year of release. cpu 32-bit Intel XScale PXA270 312 MHz. screen 2.25". with resolution 320x320. Smartphone has 1 megapixel main camera . |
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| Display | Technology | TFT | TFT | |
| Touchscreen | capacitive touchscreen | resistive touchscreen | ||
| Display colors | 65K | |||
| Screen size | 4.5" inch | 2.25" inch | ||
| Screen area | 55.8 cm2 | 16.3 cm2 | ||
| Screen format | 16:9 (height:width) | 1:1 (height:width) | ||
| Screen to body ratio | 61.1% | 28.5% | ||
| Screen resolution | 480 x 854 px | 320 x 320 px | ||
| PPI /points per inch/ | 218 PPI | 201 PPI | ||
| Camera and Video | Rear camera, main | 3.15 MP, Single | 1.3 MP, Single | |
| Camera specs | 3.15 MP | 1.3 MP | ||
| Functions | LED flash | |||
| Video | Yes | Yes | ||
| Front camera, selfie | 0.3 MP, Single | 0 MP, | ||
| Specifications | VGA | |||
| Performance | Operating system OS | Android 4.1.2 (Jelly Bean) | Palm OS 5.4.9 | |
| Processor CPU | Dual-core 1.2 GHz | 32-bit Intel XScale PXA270 312 MHz | ||
| External memory | microSD, up to 32 GB | microSD, up to 4 GB (dedicated slot) | ||
| Internal memory | 4 GB, 512 MB RAM | 64 MB | ||
| General specs | Release date | 2014 | 2008, February | |
| Dimensions (HxWxD) | 136 Х 67.2 Х 11 mm | 107.2 Х 53.5 Х 18.6 mm | ||
| Weight | 98 g | 124 g | ||
| Colors | White, Black | Obsidian, Glacier, Midnight, Cobalt, Onyx, Electric Blue, Rose, Olive | ||
| Battery | 2000 mAh, Li-Ion | 1150 mAh, Removable Li-Ion | ||
| Approximate price | 70 EUR | |||
| Battery life | Stand by time- Up to 160 h Talking time- Up to 5 h | Stand by time- Up to 300 h Talking time- Up to 4 h | ||
| Communication and Connectivity | SIM card | Dual SIM | Mini-SIM | |
| Network | Show all network frequencies: | Show all network frequencies: | ||
| Speed | ||||
| GPRS | Yes | Class 10 | ||
| Edge | Yes | Class 10 | ||
| Wi-Fi | Wi-Fi 802.11 b/g/n, hotspot | No | ||
| GPS | Yes | No | ||
| NFC | ||||
| USB | microUSB | Proprietary | ||
| Bluetooth | 2.0 | 1.2, A2DP | ||
| Harmful irradiation | SAR EU - 0.38 W/kg (head) 0.47 W/kg (body) | SAR - 0.27 W/kg (head) 0.22 W/kg (body) | ||
| Music and Audio | Radio | FM radio | No | |
| Headphone jack | Yes | No | ||
| Others | 5-way navigation button | |||
| Other features | Dop | Sensors Accelerometer, proximity | , Infrared port - Document editor (Word, Excel, PowerPoint, PDF) -MP3 player -Organizer -Voice memo | |
