Phone Comparison - Samsung Galaxy J7 vs Samsung Galaxy J2 vs Xiaomi Redmi 4
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| Price Comparison (India) | - | ||
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| Manufacturer | Samsung | Samsung | Xiaomi |
| Announced | June 2015 | September 2015 | November 2016 |
| Status | Available - June 2015 | Available - September 2015 | Available - November 2016 |
| Price | Rs. 13,400 ($197.06) [Similarly Priced] | Rs. 7,590 ($111.62) [Similarly Priced] | Rs. 8,900 ($133.00) [Similarly Priced] |
| Colors | White, Black | White, Black | Dark Gray, Silver, Gold |
| 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) |
141.3 x 69.6 x 8.9 mm (5.56 x 2.74 x 0.35 in) |
| Weight | 171 g (6.03 oz) | 129 g (4.55 oz) | 156 g (5.5 oz) |
| SIM Type | - | - | Dual SIM Hybrid (Nano SIM + Micro SIM, or Micro SIM + microSD Card) |
| 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 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 900 / 2100 | HSDPA 900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 / 800 - Taiwan |
| 4G Network | LTE | LTE | LTE band 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 18(800), 19(800), 26(850), 28(700), 38(2600), 39(1900), 40(2300), 41(2500) - Taiwan |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail, IM |
| Build Features | - | - | - Fingerprint Sensor - Infrared Sensor - Metal Build - 2.5D Curved Glass |
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| OS | Android OS, v5.1 (Lollipop) | Android OS, v5.1.1 (Lollipop) | Android OS, v6.0.1 (Marshmallow) |
| Processor | Octa-core 1.2 GHz, Exynos 7580 | Quad-core 1.3 GHz Cortex-A7, Exynos 3475 | Octa-core 2.0 GHz Cortex-A53, Qualcomm MSM8953 Snapdragon 625 |
| GPU | Mali-T720 | Mali-T720 | Adreno 506 |
| RAM | 1.5 GB | 1 GB | 3 GB |
| Internal Memory | 16 GB | 8 GB | 32 GB |
| External Memory | microSD, up to 128 GB | microSD, up to 128 GB | microSD, up to 128 GB (uses SIM 2 slot) |
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| Type | Super AMOLED Capacitive Touchscreen | Super AMOLED Capacitive Touchscreen | IPS LCD Capacitive Touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.5 inches | 4.7 inches | 5.0 inches |
| Resolution | 720 x 1280 pixels (267 ppi) | 540 x 960 pixels (234 ppi) | 1080 x 1920 pixels (441 ppi) |
| Screen-to-Body Ratio | 69.63% | 64.85% | 69.95% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio with RDS; recording | FM radio with RDS; recording | FM Radio |
| 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 | 13 MP, 4160 x 3120 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/2.2 aperture, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR |
| Video | 1080p@30fps | Yes, 720p | 1080p@30fps |
| Front Camera | 5 MP [Similar] | 2 MP [Similar] | 5 MP [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 Cat6 300/50 Mbps, VoLTE |
| Bluetooth | v4.1, A2DP | v4.1, A2DP | v4.2, A2DP, EDR, LE |
| 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, Wi-Fi Direct, hotspot |
| USB | microUSB v2.0 | microUSB v2.0 | microUSB v2.0, USB OTG |
| 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 GB, 3 GB RAM |
| Expandable Storage | microSD, up to 128 GB | microSD, up to 128 GB | microSD, up to 128 GB (uses SIM 2 slot) |
| 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 | Li-Ion Battery | Li-Ion Battery | Non-removable Li-Ion Battery |
| Capacity | 3000 mAh | 2000 mAh | 4100 mAh |
| Stand by | Up to 354 h | - | - |
| Talk Time | Up to 18 h (3G) | - | - |
Rs. 14,249 
Rs. 14,190 
Rs. 7,590 
