Phone Comparison - Samsung Galaxy J7 vs Samsung Galaxy J2 vs Samsung Galaxy S7
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| Manufacturer | Samsung | Samsung | Samsung |
| Announced | June 2015 | September 2015 | February 2016 |
| Status | Available - June 2015 | Available - September 2015 | Available - March 2016 |
| Price | Rs. 13,400 ($197.06) [Similarly Priced] | Rs. 7,590 ($111.62) [Similarly Priced] | Rs. 43,400 ($638.24) [Similarly Priced] |
| Colors | White, Black | White, Black | Black, Gold, Silver |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
152.4 x 78.6 x 7.5 mm (6 x 3.09 x 0.3 in) |
136.5 x 69 x 8.4 mm (5.37 x 2.72 x 0.33 in) |
142.4 x 69.6 x 7.9 mm (5.61 x 2.74 x 0.31 in) |
| Weight | 171 g (6.03 oz) | 129 g (4.55 oz) | 152 g (5.36 oz) |
| SIM Type | - | - | Single SIM (Nano-SIM), Dual SIM (Nano-SIM, Dual Stand-by) |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (optional) | GSM 850 / 900 / 1800 / 1900 |
| 3G Network | HSDPA 900 / 2100 | HSDPA 900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1700 / 1900 / 2100 |
| 4G Network | LTE | LTE | LTE |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM |
| Build Features | - | - | - Heart rate sensor - Fingerprint sensor - IP68 certified - dust and water resistant - Water resistant up to 1 meter and 30 minutes |
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| OS | Android OS, v5.1 (Lollipop) | Android OS, v5.1.1 (Lollipop) | Android OS, v6.0 (Marshmallow) |
| Processor | Octa-core 1.2 GHz, Exynos 7580 | Quad-core 1.3 GHz Cortex-A7, Exynos 3475 | Quad-core (2x 2.15 GHz Kryo & 2x 1.6 GHz Kryo)/ Octa-core (4x2.3 GHz Mongoose & 4x1.6 GHz Cortex-A53) , Qualcomm MSM8996 Snapdragon 820/ Exynos 8 Octa 8890 |
| GPU | Mali-T720 | Mali-T720 | Adreno 530/ Mali-T880 MP12 |
| RAM | 1.5 GB | 1 GB | 4 GB |
| Internal Memory | 16 GB | 8 GB | 32/64 GB |
| External Memory | microSD, up to 128 GB | microSD, up to 128 GB | microSD, up to 2 TB |
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| Type | Super AMOLED Capacitive Touchscreen | Super AMOLED Capacitive Touchscreen | Super AMOLED Capacitive Touchscreen, Corning Gorilla Glass 5, Always-on display |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.5 inches | 4.7 inches | 5.1 inches |
| Resolution | 720 x 1280 pixels (267 ppi) | 540 x 960 pixels (234 ppi) | 1440 x 2560 pixels (576 ppi) |
| Screen-to-Body Ratio | 69.63% | 64.85% | 72.33% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio with RDS; recording | FM radio with RDS; recording | - |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP, 4128 x 3096 pixels | 5 MP, 2592 х 1944 pixels | Dual Pixel 12 MP, 4608 x 2592 pixels |
| Flash | LED flash | LED flash | Dual-LED (Dual Tone) |
| Features | 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 | Auto focus, Geo-tagging, Touch Focus, Face Detection | Phase Detection Autofocus, f/1.7, 1/2.6' Sensor Size, 1 µm Pixel Size,Smart Optical Image Stablization, Geo-tagging, Touch Focus, Face Detection, Auto HDR, Panorama |
| Video | 1080p@30fps | Yes, 720p | 2160p@30fps, 1080p@60fps, 720p@120fps, HDR, dual-video rec. |
| Front Camera | 5 MP [Similar] | 2 MP [Similar] | 5 MP, f/1.7, Dual Video Call, Auto HDR [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | HSPA 42.2/5.76 Mbps, LTE Cat9 450/50 Mbps |
| Bluetooth | v4.1, A2DP | v4.1, A2DP | v4.2, A2DP, LE, apt-X |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| USB | microUSB v2.0 | microUSB v2.0 | microUSB v2.0, USB Host |
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS, BDS |
| Browser | HTML5 | HTML | HTML5 |
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| Internal | 16 GB, 1.5 GB RAM | 8 GB, 1 GB RAM | 32/64 GB, 4 GB RAM |
| Expandable Storage | microSD, up to 128 GB | microSD, up to 128 GB | microSD, up to 2 TB |
| USB OTG | - | - | Supported |
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| Fingerprint | |
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| Proximity Sensor | |
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| Accelerometer Sensor | |
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| Barometer Sensor | |
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| Heart-rate Sensor | |
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| NFC | |
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| Type | Li-Ion Battery | Li-Ion Battery | Non-removable Li-Po Battery |
| Capacity | 3000 mAh | 2000 mAh | 3000 mAh |
| Stand by | Up to 354 h | - | - |
| Talk Time | Up to 18 h (3G) | - | - |
Rs. 14,249 
Rs. 14,190 
Rs. 7,590 
