Phone Comparison - Samsung Galaxy S6 (CDMA) vs Samsung Galaxy A3 (2017) vs Samsung Galaxy J7 (2018)
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| Manufacturer | Samsung | Samsung | Samsung |
| Announced | March 2015 | January 2017 | June 2018 |
| Status | Available - April 2015 | Coming Soon - January 2017 | Coming Soon - July 2018 |
| Price | Rs. 29,999 ($441.16) [Similarly Priced] | Rs. 19,990 ($299.00) [Similarly Priced] | Rs. 14,999 ($225.00) [Similarly Priced] |
| Colors | White Pearl, Black Sapphire, Gold Platinum | Various | Black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
143.5 x 70.6 x 6.9 mm (5.65 x 2.78 x 0.27 in) |
135.4 x 66.2 x 7.9 mm (5.33 x 2.61 x 0.31 in) |
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| Weight | 140 g (4.94 oz) | - | - |
| SIM Type | - | Dual-SIM | Single SIM (Nano-SIM), Dual SIM (Nano-SIM, dual stand-by) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - G920V, G920P CDMA2000 1xEV-DO - G920V, G920P, G920R |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (optional) | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 - G920V | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE band 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 13(700) - G920V | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800) | LTE |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
| Build Features | - Corning Gorilla Glass 4 back panel - Fingerprint sensor (PayPal certified) - Samsung Pay (Visa, MasterCard certified) |
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| Notification LED | - | Yes | No |
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| OS | Android OS, v5.0.2 (Lollipop) | Android OS, v6.0.1 (Marshmallow) | Android 8.0 (Oreo) |
| Processor | Quad-core 1.5 GHz Cortex-A53 & Quad-core 2.1 GHz Cortex-A57, Exynos 7420 | Octa-core 1.6 GHz Cortex-A53, Exynos 7870 | 1.4 GHz Quad-core, Exynos 7570 |
| GPU | Mali-T760MP8 | Mali-T830 MP2 | Mali-T720 MP1 |
| RAM | 3 GB | 2 GB | 2/3 GB |
| Internal Memory | 32/64/128 GB | 16 GB | 16/32 GB |
| External Memory | No | microSD, up to 256 GB | microSD, up to 256 GB |
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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 | 4.7 inches | 5.5 inches |
| Resolution | 1440 x 2560 pixels (576 ppi) | 720 x 1280 pixels (312 ppi) | 720 x 1280 pixels (267 ppi) |
| Screen-to-Body Ratio | 70.76% | 68.14% | - |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | No | FM radio | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 16 MP, 2988 x 5312 pixels | 13 MP, 4128 x 3096 pixels | 13 MP, 3264 x 2448 pixels |
| Flash | LED Flash | LED flash | LED Flash |
| Features | OIS, Auto-focus, Geo-tagging, Touch Focus, Face Detection, Auto HDR, Panorama | Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama | Autofocus, f/1.7, Geo-tagging, Touch Focus, Face Detection, HDR |
| Video | 2160p@30fps, 1080p@60fps, 720p@120fps, HDR, dual-video rec. | 1080p@30fps | 1080p@30fps |
| Front Camera | 5 MP, 1440p@30fps, dual video call, Auto [Similar] | 8 MP [Similar] | 13 MP, f/1.9 [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, EV-DO Rev.A 3.1 Mbps | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps, VoLTE | HSPA, 4G, LTE, VoLTE |
| Bluetooth | v4.1, A2DP, LE, apt-X | v4.2, A2DP, EDR, LE, ANT+ | Yes |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, hotspot | Yes |
| USB | microUSB v2.0, USB Host | Type-C 1.0 reversible connector, Fast Charging | microUSB 2.0, USB On-The-Go |
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS/ BDS (market dependant) | Yes, with A-GPS |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 32/64/128 GB, 3 GB RAM | 16 GB, 2 GB RAM | 16/32 GB, 2/3 GB RAM |
| Expandable Storage | No | microSD, up to 256 GB | microSD, up to 256 GB |
| USB OTG | Supported | 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 | Non-removable Li-Ion Battery | Li-Ion battery |
| Capacity | 2550 mAh | 2350 mAh | 3000 mAh |
| Stand by | - | - | - |
| Talk Time | Up to 23 h (3G) | - | - |
