| BlackBerry Curve 8520 |
vivo Y11 |
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| Hardware and OS | BlackBerry Curve 8520 | vivo Y11 |
| Operating system | BlackBerry OS 5.0 | Android 4.4.4 (KitKat) |
| Processor | 512 MHz | Quad-core 1.3 GHz Cortex-A7 |
| Internal memory | 256 MB | 4 GB, 512 MB RAM |
| Chipset | Mediatek MT6582М | |
| External memory | microSD, up to 32 GB (dedicated slot) | microSD, up to 256 GB (dedicated slot) |
| GPU | Mali-400MP2 | |
| Display | BlackBerry Curve 8520 | vivo Y11 |
| Type | TFT | IPS LCD |
| Size | 2.46" inc | 4" inc |
| Resolution | 320 x 240 px | 480 x 800 px |
| Screen-to-Body Ratio | 28.7% | 59.2% |
| Display area | 18.7 cm2 | 45.5 cm2 |
| Display aspect ratio | 4:3 (height:width) | 5:3 (height:width) |
| Touchscreen | capacitive touchscreen | |
| Pixel Density | 163 PPI | 233 PPI |
| Colors | 65K | 16M |
| Connectivity | BlackBerry Curve 8520 | vivo Y11 |
| Wi-Fi | Wi-Fi 802.11b/g | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot |
| Network | GSM | GSM / HSPA |
| SIM card | Mini-SIM | Dual SIM (Micro-SIM, dual stand-by) |
| Bluetooth | 2.0, A2DP | 4.0, A2DP, EDR |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| Edge | Class 10 | Yes |
| GPRS | Class 10 | Yes |
| GPS | No | Yes, with A-GPS |
| USB | microUSB | microUSB 2.0, USB Host |
| Speed | HSPA 21.1/7.2 Mbps | |
| Camera | BlackBerry Curve 8520 | vivo Y11 |
| Main camera | 2 MP, Single | 5 MP, Single |
| Specs | 2 MP | 5 MP, AF |
| Video | 320p | 1080p@30fps |
| Features | LED flash | |
| Selfie camera | 2 MP, Single | |
| Multimedia | BlackBerry Curve 8520 | vivo Y11 |
| 3.5 mm Jack | Yes | Yes |
| Radio | No | FM radio |
| Design | BlackBerry Curve 8520 | vivo Y11 |
| Colors | Black | White, Black |
| Dimensions | 109 x 60 x 13.9 mm | 123 x 62.5 x 8.8 mm |
| Weight | 106 g | 124 g |
| Battery | BlackBerry Curve 8520 | vivo Y11 |
| Battery capacity | 1150 mAh, Removable Li-Ion | 1700 mAh, Removable Li-Po |
| Battery life | Stand by time- Up to 408 h Talking time- Up to 4 h 30 min | Talking time- Up to 11 h (2G) / Up to 8 h (3G) Music play - Up to 34 h |
| Other | BlackBerry Curve 8520 | vivo Y11 |
| SAR | SAR - 1.22 W/kg (head), 0.83 W/kg (body), SAR EU - 1.02 W/kg (head), 0.78 W/kg (body) | |
| Release date | 2009, July | 2014, Q4 |
| Sensors | Accelerometer, proximity , Infrared port |
