Phone Comparison - Samsung Galaxy S6 vs Samsung Galaxy J7 vs Samsung Galaxy A20
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| Price Comparison (India) | - | ||
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| Manufacturer | Samsung | Samsung | Samsung |
| Announced | March 2015 | June 2015 | March 2019 |
| Status | Available - April 2015 | Available - June 2015 | Coming Soon - April 2019 |
| Price | Rs. 29,999 ($441.16) [Similarly Priced] | Rs. 13,400 ($197.06) [Similarly Priced] | - |
| Colors | White Pearl, Black Sapphire, Gold Platinum, Blue Topaz | White, Black | Blue, Black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
143.4 x 70.5 x 6.8 mm (5.65 x 2.78 x 0.27 in) |
152.4 x 78.6 x 7.5 mm (6 x 3.09 x 0.3 in) |
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| Weight | 138 g (4.87 oz) | 171 g (6.03 oz) | - |
| SIM Type | - | - | Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM only) |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE | LTE | LTE |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | |
| Build Features | - Corning Gorilla Glass 4 back panel - Fingerprint sensor (PayPal certified) - Samsung Pay (Visa, MasterCard certified) |
- | - Fingerprint Sensor |
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| OS | Android OS, v5.0.2 (Lollipop) | Android OS, v5.1 (Lollipop) | Android 9.0 (Pie) |
| Processor | Quad-core 1.5 GHz Cortex-A53 & Quad-core 2.1 GHz Cortex-A57, Exynos 7420 | Octa-core 1.2 GHz, Exynos 7580 | Octa-core (2x1.6 GHz & 6x1.35 GHz), Exynos 7884 Octa |
| GPU | Mali-T760 | Mali-T720 | - |
| RAM | 3 GB | 1.5 GB | 3 GB |
| Internal Memory | 32/64/128 GB | 16 GB | 32 GB |
| External Memory | No | microSD, up to 128 GB | microSD, up to 512 GB (dedicated slot) |
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| Type | Super AMOLED Capacitive Touchscreen, Corning Gorilla Glass 4 | Super AMOLED Capacitive Touchscreen | Super AMOLED Capacitive Touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.1 inches | 5.5 inches | 6.4 inches |
| Resolution | 1440 x 2560 pixels (577 ppi) | 720 x 1280 pixels (267 ppi) | 720 x 1560 pixels (268 ppi) |
| Screen-to-Body Ratio | 70.66% | 69.63% | - |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | FM radio with RDS; recording | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 16 MP, 3456 x 4608 pixels, OIS | 13 MP, 4128 x 3096 pixels | 13 MP + 5 MP |
| Flash | LED Flash | LED flash | LED Flash |
| Features | Auto focus, Geo-tagging, Touch Focus, Face Detection, Auto HDR, Panorama | 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 | 13 MP, f/1.9, 28mm (wide), AF 5 MP, f/2.2, depth sensor Panorama, HDR |
| Video | 2160p@30fps, 1080p@60fps, 720p@120fps, HDR, dual-video rec. | 1080p@30fps | 1080p@30fps |
| Front Camera | 5 MP, 1080p@30fps, dual video call, HDR [Similar] | 5 MP [Similar] | 8 MP, f/2.0 [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA 42.2/5.76 Mbps, LTE Cat6 300/50 Mbps | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps |
| Bluetooth | v4.1, A2DP, LE, apt-X | v4.1, A2DP | 4.2, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot |
| USB | microUSB v2.0 (MHL 3 TV-out), USB Host | microUSB v2.0 | microUSB 2.0 |
| GPS | Yes, with A-GPS, GLONASS, Beidou | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS, BDS |
| Browser | HTML5 | HTML5 | Yes |
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| Internal | 32/64/128 GB, 3 GB RAM | 16 GB, 1.5 GB RAM | 32 GB, 3 GB RAM |
| Expandable Storage | No | microSD, up to 128 GB | microSD, up to 512 GB (dedicated slot) |
| USB OTG | Supported | - | 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 | Non-removable Li-Ion Battery | Li-Ion Battery | Non-removable Li-Po Battery |
| Capacity | 2550 mAh | 3000 mAh | 4000 mAh |
| Stand by | - | Up to 354 h | - |
| Talk Time | - | Up to 18 h (3G) | - |
Rs. 33,900 
Rs. 33,900 
Rs. 33,700 
