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Brief information about compared phones: T-Mobile MDA Basic , Yezz Billy 4T-Mobile MDA Basic 2009 year of release. cpu 200 MHz ARM926EJ-S. screen 2.8". with resolution 240x320. Smartphone has 2 megapixel main camera . Yezz Billy 4 2014 year of release. cpu Quad-core 1.2 GHz Cortex-A7. screen 4". with resolution 480x800. Smartphone has 1 megapixel front camera and 8 megapixel main camera . |
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| Display | Technology | TFT | TFT | |
| Touchscreen | resistive touchscreen | capacitive touchscreen | ||
| Display colors | 65K | 16M | ||
| Screen size | 2.8" inch | 4" inch | ||
| Screen area | 24.3 cm2 | 45.5 cm2 | ||
| Screen format | 4:3 (height:width) | 5:3 (height:width) | ||
| Screen to body ratio | 39.2% | 57.7% | ||
| Screen resolution | 240 x 320 px | 480 x 800 px | ||
| PPI /points per inch/ | 143 PPI | 233 PPI | ||
| Camera and Video | Rear camera, main | 2 MP, Single | 8 MP, Single | |
| Camera specs | 2 MP | 8 MP, AF | ||
| Functions | LED flash | |||
| Video | Yes | 720p@30fps | ||
| Front camera, selfie | 0 MP, | 1.3 MP, Single | ||
| Specifications | 1.3 MP | |||
| Performance | Operating system OS | Microsoft Windows Mobile 6.1 Professional | Microsoft Windows Phone 8.1 | |
| Chipset | TI OMAP 850 | Qualcomm MSM8212 Snapdragon 200 (28 nm) | ||
| Processor CPU | 200 MHz ARM926EJ-S | Quad-core 1.2 GHz Cortex-A7 | ||
| Graphics processor GPU | Adreno 302 | |||
| External memory | microSD (dedicated slot) | microSD, up to 256 GB | ||
| Internal memory | 128 MB RAM, 256 MB ROM | 4 GB, 512 MB RAM | ||
| General specs | Release date | 2009, January | 2014, June | |
| Dimensions (HxWxD) | 105 Х 59 Х 16 mm | 122.5 Х 64.4 Х 9.9 mm | ||
| Weight | 110 g | 109 g | ||
| Colors | Gray | White, Black, Red, Gun Metal, Blue, Yellow, Champing Gold | ||
| Battery | 1100 mAh, Removable Li-Ion | 1300 mAh, Removable Li-Ion | ||
| Battery life | Stand by time- Up to 270 h Talking time- Up to 8 h | Stand by time- Up to 350 h (2G) / Up to 300 h (3G) Talking time- Up to 7 h (2G) / Up to 4 h 30 min (3G) | ||
| Communication and Connectivity | SIM card | Mini-SIM | Dual SIM (Micro-SIM) | |
| Network | Show all network frequencies: | Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | ||
| Speed | HSPA 42.2/5.76 Mbps | |||
| GPRS | Class 10 | Class 12 | ||
| Edge | Class 10 | Class 12 | ||
| Wi-Fi | Wi-Fi 802.11b/g | Wi-Fi 802.11 a/b/g/n, dual-band, hotspot | ||
| GPS | No | Yes, with A-GPS, GLONASS | ||
| NFC | ||||
| USB | miniUSB | microUSB 2.0 | ||
| Bluetooth | 2.0, A2DP | 4.0, A2DP | ||
| Music and Audio | Radio | No | Stereo FM radio | |
| Headphone jack | No | Yes | ||
| Others | TouchFLO finger swipe navigation -Handwriting recognition -5-way navigation | |||
| Other features | Dop | Pocket Office -Voice memo -MP3/AAC player | Sensors Accelerometer, proximity | |
