Phone Comparison - BlackBerry Curve 8520 vs Amazon Kindle Fire HD 8.9 LTE vs Samsung Galaxy S Duos 2 S7582
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| Manufacturer | BlackBerry | Amazon | Samsung |
| Announced | July 2009 | September 2012 | November 2013 |
| Status | Available - August 2009 | Available - October 2012 | Available - November 2013 |
| Colors | Black | Black | White, Black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
109 x 60 x 13.9 mm
(4.29 x 2.36 x 0.55 in ) |
240 x 164 x 8.8 mm (9.45 x 6.46 x 0.35 in) |
121.5 x 63.1 x 10.57 mm (4.78 x 2.48 x 0.42 in) |
| Weight | 106 g (3.74 oz) | 575 g (20.28 oz) | 118 g (4.16 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA | HSDPA 900 / 2100 | |
| 4G Network | - | LTE | - |
| Messaging | SMS, MMS, EMail, IM | , Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail |
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| OS | BlackBerry OS | Android OS, v4.0 (customized) | Android OS, v4.2 (Jelly Bean) |
| Processor | 512MHz | Dual-core 1.5 GHz Cortex-A9, TI OMAP 4470 | Dual-core 1.2 GHz Cortex-A9, Broadcom BCM21664 |
| GPU | PowerVR SGX544 | Broadcom VideoCore IV | |
| RAM | N/A | 1 GB | 768 MB |
| Internal Memory | 256 MB | 32/64 GB storage | 4 GB (1.9 GB user available) |
| External Memory | microSD, up to 32GB | No | microSD, up to 32 GB |
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| Type | TFT | IPS LCD capacitive touchscreen | TFT Capacitive Touchscreen, PLS |
| Colors | 65K colors | 16M colors | 16M colors |
| Size | 2.46 inches | 8.9 inches | 4.0 inches |
| Resolution | 320 x 240 pixels (163 ppi) | 1920 x 1200 pixels (254 ppi) | 480 x 800 pixels (233 ppi) |
| Screen-to-Body Ratio | 28.52% | 58.54% | 59.52% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | No | Stereo FM radio with RDS |
| Games | Yes + downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 2 MP, 1600x1200 pixels | 1.3 MP, 1280 x 1024 pixels | 5 MP, 2592х1944 pixels |
| Flash | No | No | LED flash |
| Features | Geo-tagging | Auto focus, Geo-tagging | |
| Video | Yes, QVGA | No | Yes, 720p@30fps |
| Front Camera | No [Similar] | No [Similar] | Yes, VGA [Similar] |
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| GPRS | Class 10 (4+1/3+2 slots), 32 - 48 kbps | Yes | Yes |
| Edge | Class 10, 236.8 kbps | Yes | Yes |
| 3G | No | HSDPA, HSUPA, LTE | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps |
| Bluetooth | Yes, v2.0 with A2DP | Yes, with A2DP | Yes, v4.0 with A2DP |
| Wi-Fi | Wi-Fi 802.11b/g | Wi-Fi 802.11 a/b/g/n, dual-band | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot, Wi-Fi Direct |
| USB | Yes, microUSB | Yes, v2.0 | Yes, microUSB v2.0 |
| GPS | No | Yes, with A-GPS support | Yes, with A-GPS support and GLONASS |
| Browser | HTML | HTML5 (Amazon Silk) | HTML5 |
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| Internal | 256 MB | 32/64 GB storage, 1 GB RAM | 4 GB (1.9 GB user available), 768 MB RAM |
| Expandable Storage | microSD, up to 32GB | No | microSD, up to 32 GB |
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| Fingerprint | |
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| Proximity Sensor | |
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| Accelerometer Sensor | |
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| NFC | |
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| Type | Standard battery, Li-Ion | Non-removable Li-Ion battery | Standard battery, Li-Ion |
| Capacity | 1150 mAh | 6000 mAh | 1500 mAh |
| Stand by | Up to 408 h | - | Up to 280 h (3G) |
| Talk Time | Up to 4 h 30 min | Up to 10 h | Up to 8 h (3G) |
