Phone Comparison - Samsung Galaxy S Duos 2 S7582 vs Samsung Galaxy J1 vs Samsung Galaxy A9
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| Manufacturer | Samsung | Samsung | Samsung |
| Announced | November 2013 | January 2015 | December 2015 |
| Status | Available - November 2013 | Available - January 2015 | Coming Soon - January 2016 |
| Price | - | Rs. 5,850 ($86.03) [Similarly Priced] | Rs. 33,000 ($499.00) [Similarly Priced] |
| Colors | White, Black | Blue, Black, White | Pearl White, Midnight Black, Champagne Gold |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
121.5 x 63.1 x 10.57 mm (4.78 x 2.48 x 0.42 in) |
129 x 68.2 x 8.9 mm (5.08 x 2.69 x 0.35 in) |
161.7 x 80.9 x 7.4 mm (6.37 x 3.19 x 0.29 in) |
| Weight | 118 g (4.16 oz) | 122 g (4.3 oz) | 200 g (7.05 oz) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (optional) |
| 3G Network | HSDPA 900 / 2100 | HSDPA 900 / 2100 (single or dual SIM) HSDPA 850 / 2100 (dual SIM) |
HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | - | - | LTE |
| Messaging | SMS, MMS, Push Mail, EMail | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
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| OS | Android OS, v4.2 (Jelly Bean) | Android OS, v4.4.x (KitKat) | Android OS, v5.1.1 (Lollipop), planned upgrade to v6.0 (Marshmallow) |
| Processor | Dual-core 1.2 GHz Cortex-A9, Broadcom BCM21664 | Dual-core 1.2 GHz Cortex-A7 | Quad-core 1.8 GHz Cortex-A72 & quad-core 1.2 GHz Cortex-A53, Qualcomm MSM8976 Snapdragon 652 |
| GPU | Broadcom VideoCore IV | - | Adreno 510 |
| RAM | 768 MB | 512 MB | 3 GB |
| Internal Memory | 4 GB (1.9 GB user available) | 4 GB | 32 GB |
| External Memory | microSD, up to 32 GB | microSD, up to 128 GB | microSD, up to 128 GB |
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| Type | TFT Capacitive Touchscreen, PLS | TFT Capacitive Touchscreen | Super AMOLED capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 4.0 inches | 4.3 inches | 6.0 inches |
| Resolution | 480 x 800 pixels (233 ppi) | 480 x 800 pixels (217 ppi) | 1080 x 1920 pixels (367 ppi) |
| Screen-to-Body Ratio | 59.52% | 59.80% | 75.93% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | Stereo FM radio with RDS | - | FM radio with RDS; recording |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 5 MP, 2592х1944 pixels | 5 MP, 2592 х 1944 pixels | 13 MP, 4128 x 3096 pixels |
| Flash | LED flash | LED Flash | LED Flash |
| Features | Auto focus, Geo-tagging | Auto focus, Geo-tagging, Touch Focus, Face Detection | Auto focus, f/1.9, OIS, 1/3'' sensor size, 1.12 µm pixel size, geo-tagging, touch focus, face detection, panorama, HDR |
| Video | Yes, 720p@30fps | 720p@30fps | 1080p@30fps |
| Front Camera | Yes, VGA [Similar] | 2 MP [Similar] | 8 MP, f/1.9, 1080p [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSDPA, 21 Mbps; HSUPA, 5.76 Mbps | HSPA | HSPA 42.2/5.76 Mbps, LTE Cat7 350/50 Mbps |
| Bluetooth | Yes, v4.0 with A2DP | v4.0, A2DP | v4.1, A2DP, EDR, LE |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi hotspot, Wi-Fi Direct | Wi-Fi 802.11 b/g/n | Wi-Fi 802.11 a/b/g/n, dual-band, WiFi Direct, hotspot |
| USB | Yes, microUSB v2.0 | microUSB v2.0 | microUSB v2.0 |
| GPS | Yes, with A-GPS support and GLONASS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS/ BDS (market dependant) |
| Browser | HTML5 | HTML | HTML5 |
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| Internal | 4 GB (1.9 GB user available), 768 MB RAM | 4 GB, 512 MB RAM | 32 GB, 3 GB RAM |
| Expandable Storage | microSD, up to 32 GB | microSD, up to 128 GB | microSD, up to 128 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 | Li-Ion Battery | Non-removable Li-Ion Battery |
| Capacity | 1500 mAh | 1850 mAh | 4000 mAh |
| Stand by | Up to 280 h (3G) | - | - |
| Talk Time | Up to 8 h (3G) | Up to 10 h (3G) | - |
