Phone Comparison - BlackBerry Curve 8520 vs BlackBerry Bold 9790 vs BlackBerry 9720
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| Manufacturer | BlackBerry | BlackBerry | BlackBerry |
| Announced | July 2009 | November 2011 | August 2013 |
| Status | Available - August 2009 | Available - December 2011 | Available - August 2013 |
| Colors | Black | Black | Black, White, Purple, Blue, Pure Pink |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
109 x 60 x 13.9 mm
(4.29 x 2.36 x 0.55 in ) |
110 x 60 x 11.4 mm (4.33 x 2.36 x 0.45 in) |
114 x 66 x 12 mm (4.49 x 2.6 x 0.47 in) |
| Weight | 106 g (3.74 oz) | 107 g (3.77 oz) | 120 g (4.23 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 850 / 1900 / 2100 / 800 HSDPA 900 / 1700 / 2100 |
HSDPA 850 / 900 / 1900 / 2100 HSDPA | |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
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| OS | BlackBerry OS | BlackBerry OS 7.0 | BlackBerry OS 7.1 |
| Processor | 512MHz | Marvel Tavor MG1 1 GHz | 806 MHz Tavor MG1 |
| GPU | - | ||
| RAM | N/A | 768 MB | 512 MB |
| Internal Memory | 256 MB | 8 GB storage | 512 MB ROM |
| External Memory | microSD, up to 32GB | microSD, up to 32GB | microSD, up to 32 GB |
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| Type | TFT | TFT capacitive touchscreen | IPS capacitive touchscreen |
| Colors | 65K colors | 16M colors | 16M colors |
| Size | 2.46 inches | 2.45 inches | 2.8 inches |
| Resolution | 320 x 240 pixels (163 ppi) | 480 x 360 pixels (245 ppi) | 480 x 360 pixels (214 ppi) |
| Screen-to-Body Ratio | 28.52% | 28.14% | 32.35% |
| 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 | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 2 MP, 1600x1200 pixels | 5 MP, 2592x1944 pixels | 5 MP, 2592x1944 pixels |
| Flash | No | LED flash | LED flash |
| Features | Auto focus, Geo-tagging, Face Detection, Image Stabilization | Geo-tagging, Image Stabilization | |
| Video | Yes, QVGA | Yes, VGA | Yes |
| Front Camera | No [Similar] | No [Similar] | No [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, 7.2 Mbps; HSUPA, 5.76 Mbps | HSDPA, 7.2 Mbps; HSUPA, 5.76 Mbps |
| Bluetooth | Yes, v2.0 with A2DP | Yes, v2.1 with A2DP, EDR | Yes, v2.1 with A2DP |
| Wi-Fi | Wi-Fi 802.11b/g | Wi-Fi 802.11 a/b/g/n, UMA (carrier-dependent) | Wi-Fi 802.11 b/g, Wi-Fi hotspot |
| USB | Yes, microUSB | Yes, microUSB v2.0 | Yes, microUSB v2.0 |
| GPS | No | Yes, with A-GPS support | Yes, with A-GPS support |
| Browser | HTML | HTML | HTML |
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| Internal | 256 MB | 8 GB storage, 768 MB RAM | 512 MB ROM, 512 MB RAM |
| Expandable Storage | microSD, up to 32GB | microSD, up to 32GB | 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 | Standard battery, Li-Ion | Li-Ion Battery |
| Capacity | 1150 mAh | (JM-1) | 1450 mAh |
| Stand by | Up to 408 h | Up to 432 h (2G) Up to 408 h (3G) |
Up to 432 h |
| Talk Time | Up to 4 h 30 min | Up to 5 h 10 min (2G) Up to 5 h 20 min (3G) |
Up to 7 h |
