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Brief information about compared phones: Celkon A64 , O2 XDA ExecCelkon 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 . O2 XDA Exec 2005 year of release. cpu Intel Bulverde 520 MHz. screen 3.6". with resolution 640x480. Smartphone has 0 megapixel front camera and 1 megapixel main camera . |
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| Display | Technology | TFT | TFT | |
| Touchscreen | capacitive touchscreen | resistive touchscreen | ||
| Display colors | 65K | |||
| Screen size | 4" inch | 3.6" inch | ||
| Screen area | 47.6 cm2 | 40.1 cm2 | ||
| Screen format | 3:2 (height:width) | 4:3 (height:width) | ||
| Screen to body ratio | 59.1% | 39.0% | ||
| Screen resolution | 320 x 480 px | 640 x 480 px | ||
| PPI /points per inch/ | 144 PPI | 222 PPI | ||
| Camera and Video | Rear camera, main | 2 MP, Single | 1.3 MP, Single | |
| Camera specs | 2 MP | 1.3 MP | ||
| Functions | LED flash | |||
| Video | Yes | Yes | ||
| Front camera, selfie | 0.3 MP, Single | 0.3 MP, Single | ||
| Specifications | VGA | VGA videocall camera | ||
| Performance | Operating system OS | Android 4.2.2 (Jelly Bean) | Microsoft Windows Mobile 5.0 PocketPC | |
| Processor CPU | Dual-core 1.2 GHz | Intel Bulverde 520 MHz | ||
| External memory | microSD, up to 32 GB | SDIO/MMC | ||
| Internal memory | 512 MB, 256 MB RAM | 64 MB RAM, 128 MB ROM | ||
| General specs | Release date | 2014 | 2005, August | |
| Dimensions (HxWxD) | 124 Х 65 Х 10.5 mm | 127 Х 81 Х 25 mm | ||
| Weight | 125.6 g | 285 g | ||
| Colors | White, Black | Stylish black | ||
| Battery | 1400 mAh, Li-Ion | 1620 mAh, Removable Li-Ion | ||
| Approximate price | 300 EUR | |||
| Battery life | Stand by time- Up to 150 h Talking time- Up to 8 h 20 min | Stand by time- Up to 250 h Talking time- Up to 8 h | ||
| Communication and Connectivity | SIM card | Dual SIM | Mini-SIM | |
| Network | Show all network frequencies: | Show all network frequencies: -2G - GSM 900 / 1800 / 1900 | ||
| Speed | Yes, 384 kbps | |||
| GPRS | Yes | Class 10 | ||
| Edge | Yes | No | ||
| Wi-Fi | Wi-Fi 802.11 b/g/n, hotspot | Wi-Fi 802.11b | ||
| GPS | Yes | No | ||
| NFC | ||||
| USB | microUSB | miniUSB | ||
| Bluetooth | 2.0 | 1.2 | ||
| Harmful irradiation | SAR EU - 0.42 W/kg (head) 0.55 W/kg (body) | |||
| Music and Audio | Radio | FM radio | No | |
| Headphone jack | Yes | No | ||
| Others | Handwriting recognition | |||
| Other features | Dop | Sensors Accelerometer | , Infrared port - Pocket Office -Voice memo -MP3/AAC player - Produced by HTC. Functionally identical to Qtek 9000 , i-mate JASJAR and T-Mobile MDA IV. | |
