Phone Comparison - BlackBerry Curve 8520 vs HTC One X AT&T vs Samsung Galaxy S Duos 2 S7582
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| Manufacturer | BlackBerry | HTC | Samsung |
| Announced | July 2009 | February 2012 | November 2013 |
| Status | Available - August 2009 | Available - May 2012 | Available - November 2013 |
| Colors | Black | Gray, White | White, Black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
109 x 60 x 13.9 mm
(4.29 x 2.36 x 0.55 in ) |
134.8 x 69.9 x 8.9 mm (5.31 x 2.75 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) | 129 g (4.55 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 850 / 1900 / 2100 | HSDPA 900 / 2100 | |
| 4G Network | - | LTE 700 MHz Class 17 / 1700 / 2100 | - |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail | SMS, MMS, Push Mail, EMail |
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| OS | BlackBerry OS | Android OS, v4.0 (Ice Cream Sandwich), upgradable to v4.1 (Jelly Bean) | Android OS, v4.2 (Jelly Bean) |
| Processor | 512MHz | Dual-core 1.5 GHz Krait, Qualcomm MSM8960 Snapdragon | Dual-core 1.2 GHz Cortex-A9, Broadcom BCM21664 |
| GPU | Adreno 225 | Broadcom VideoCore IV | |
| RAM | N/A | 1 GB | 768 MB |
| Internal Memory | 256 MB | 16 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 | Super IPS LCD2 capacitive touchscreen | TFT Capacitive Touchscreen, PLS |
| Colors | 65K colors | 16M colors | 16M colors |
| Size | 2.46 inches | 4.7 inches | 4.0 inches |
| Resolution | 320 x 240 pixels (163 ppi) | 720 x 1280 pixels (312 ppi) | 480 x 800 pixels (233 ppi) |
| Screen-to-Body Ratio | 28.52% | 64.82% | 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 | 8 MP, 3264x2448 pixels | 5 MP, 2592х1944 pixels |
| Flash | No | LED flash | LED flash |
| Features | Auto focus, Simultaneous HD Video And Image Recording, Geo-tagging, Face And Smile Detection | Auto focus, Geo-tagging | |
| Video | Yes, QVGA | Yes, 1080p@30fps, stereo sound rec., video stabilization | Yes, 720p@30fps |
| Front Camera | No [Similar] | Yes, 1.3 MP, 720p [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, 21 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 100 Mbps DL | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps |
| Bluetooth | Yes, v2.0 with A2DP | Yes, v4.0 with A2DP | Yes, v4.0 with A2DP |
| Wi-Fi | Wi-Fi 802.11b/g | Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct, DLNA, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot, Wi-Fi Direct |
| USB | Yes, microUSB | Yes, microUSB v2.0 (MHL) | Yes, microUSB v2.0 |
| GPS | No | Yes, with A-GPS support | Yes, with A-GPS support and GLONASS |
| Browser | HTML | HTML5, Adobe Flash | HTML5 |
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| Internal | 256 MB | 16 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-Po Battery | Standard battery, Li-Ion |
| Capacity | 1150 mAh | 1800 mAh | 1500 mAh |
| Stand by | Up to 408 h | Up to 300 h | Up to 280 h (3G) |
| Talk Time | Up to 4 h 30 min | Up to 8 h 30 min | Up to 8 h (3G) |
