Phone Comparison - BlackBerry Curve 8520 vs Xiaomi Redmi Note 4G vs Samsung Galaxy J7
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| Price Comparison (India) | - | - | |
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| Manufacturer | BlackBerry | Xiaomi | Samsung |
| Announced | July 2009 | August 2014 | June 2015 |
| Status | Available - August 2009 | Available - November 2014 | Available - June 2015 |
| Price | - | - | Rs. 13,400 ($197.06) [Similarly Priced] |
| Colors | Black | Black/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 ) |
154 x 78.7 x 9.5 mm (6.06 x 3.1 x 0.37 in) |
152.4 x 78.6 x 7.5 mm (6 x 3.09 x 0.3 in) |
| Weight | 106 g (3.74 oz) | 199 g (7.02 oz) | 171 g (6.03 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | TD-SCDMA 1900 / 2000 | HSDPA 900 / 2100 | |
| 4G Network | - | TD-LTE 1900 / 2300 / 2600 | LTE |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
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| OS | BlackBerry OS | Android OS, v4.2 (Jelly Bean) | Android OS, v5.1 (Lollipop) |
| Processor | 512MHz | Quad-core 1.6 GHz Cortex-A7, Qualcomm MSM8928 Snapdragon 400 | Octa-core 1.2 GHz, Exynos 7580 |
| GPU | Adreno 305 | Mali-T720 | |
| RAM | N/A | 2 GB | 1.5 GB |
| Internal Memory | 256 MB | 8 GB | 16 GB |
| External Memory | microSD, up to 32GB | microSD, up to 64 GB | microSD, up to 128 GB |
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| Type | TFT | IPS LCD capacitive touchscreen | Super AMOLED Capacitive Touchscreen |
| Colors | 65K colors | 16M colors | 16M colors |
| Size | 2.46 inches | 5.5 inches | 5.5 inches |
| Resolution | 320 x 240 pixels (163 ppi) | 720 x 1280 pixels (267 ppi) | 720 x 1280 pixels (267 ppi) |
| Screen-to-Body Ratio | 28.52% | 68.82% | 69.63% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | FM radio | FM radio with RDS; recording |
| Games | Yes + downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 2 MP, 1600x1200 pixels | 13 MP, 4128 x 3096 pixels | 13 MP, 4128 x 3096 pixels |
| Flash | No | LED flash | LED flash |
| Features | Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, HDR | Auto focus, Geo-tagging, Touch Focus, Beauty Face, Continuous Shots, Sensor Size: 1/3.06-inch, F1.9, Interval Shot, Panorama, Sports Mode, Sound and Shot Mode | |
| Video | Yes, QVGA | 1080p@30fps | 1080p@30fps |
| Front Camera | No [Similar] | 5 MP [Similar] | 5 MP [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 | TD-SCDMA; LTE | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps |
| Bluetooth | Yes, v2.0 with A2DP | v4.0, A2DP, LE | v4.1, A2DP |
| Wi-Fi | Wi-Fi 802.11b/g | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, Wi-Fi hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot |
| USB | Yes, microUSB | microUSB v2.0, USB On-the-go | microUSB v2.0 |
| GPS | No | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS |
| Browser | HTML | HTML5 | HTML5 |
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| Internal | 256 MB | 8 GB, 2 GB RAM | 16 GB, 1.5 GB RAM |
| Expandable Storage | microSD, up to 32GB | microSD, up to 64 GB | microSD, up to 128 GB |
| USB OTG | - | Supported | - |
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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 | Li-Po Battery | Li-Ion Battery |
| Capacity | 1150 mAh | 3200 mAh | 3000 mAh |
| Stand by | Up to 408 h | Up to 775 h (3G) | Up to 354 h |
| Talk Time | Up to 4 h 30 min | Up to 38 h (2G) Up to 14 h (3G) |
Up to 18 h (3G) |
Rs. 14,249 
Rs. 14,190 
