Phone Comparison - vivo Y55s vs Oppo A71 vs Samsung Galaxy J7 Duo (2018)
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| Price Comparison (India) | - | - | |
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| Manufacturer | vivo | Oppo | Samsung |
| Announced | February 2017 | September 2017 | April 2018 |
| Status | Coming Soon - February 2017 | Available - September 2017 | Available - April 2018 |
| Price | - | Rs. 12,990 ($199.00) [Similarly Priced] | Rs. 16,990 ($260.00) [Similarly Priced] |
| Colors | Crown Gold, Space Gray | Gold, Black | Black, Gold |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension | - |
148.1 x 73.8 x 7.6 mm (5.83 x 2.91 x 0.3 in) |
153.5 x 77.2 x 8.1 mm (6.04 x 3.04 x 0.32 in) |
| Weight | - | 137 g (4.83 oz) | - |
| SIM Type | Dual SIM | Dual SIM (Nano-SIM, dual stand-by) | Dual-SIM |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | 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 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE band 3(1800), 5(850), 40(2300) | LTE | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800) |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail | SMS, MMS, EMail, IM |
| Build Features | - | - | - 2.5D Curved Glass - Fingerprint Sensor |
| Notification LED | No | Yes | Yes |
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| OS | Android OS, v6.0 (Marshmallow) | Android OS, v7.1 (Nougat) | Android OS, v8.0 (Oreo) |
| User Interface | - | ColorOS 3.1 | - |
| Processor | Quad-core 1.2 GHz Cortex-A53, Qualcomm MSM8917 Snapdragon 425 | Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53), MediaTek MT6750 | 2.39 GHz Octa-core, Exynos 7870 |
| GPU | Adreno 306 | Mali-T880 MP2 | Mali-T830 MP2 |
| RAM | 3 GB | 3 GB | 4 GB |
| Internal Memory | 16 GB | 16 GB | 32 GB |
| External Memory | microSD, up to 256 GB (dedicated slot) | microSD, up to 256 GB (uses SIM 2 slot) | microSD, up to 256 GB |
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| Type | IPS LCD Capacitive Touchscreen | IPS LCD Capacitive Touchscreen | Super AMOLED capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.2 inches | 5.2 inches | 5.5 inches |
| Resolution | 720 x 1280 pixels (282 ppi) | 720 x 1280 pixels (282 ppi) | 720 x 1280 pixels (267 ppi) |
| Screen-to-Body Ratio | - | 68.41% | 70.38% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | FM Radio | FM radio, recording |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP | 13 MP | Dual 13 MP + 5 MP |
| Flash | LED Flash | LED Flash | LED flash |
| Features | Autofocus, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama | Phase Detection Autofocus, f/2.2, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama | Auto focus, Live Focus, f/1.9 aperture main, f/1.9 aperture secondary, Geo-tagging, Touch Focus, Face Detection, Panorama |
| Video | 1080p@30fps | 1080p@30fps | 1080p@30fps |
| Front Camera | 5 MP [Similar] | 5 MP, f/2.4 [Similar] | 8 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 Cat4 150/50 Mbps, VoLTE | HSPA, LTE, VoLTE | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps, VoLTE |
| Bluetooth | v4.0, A2DP | 4.2, A2DP | v4.2, A2DP, EDR, LE, ANT+ |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | Wi-Fi 802.11 b/g/n, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, hotspot |
| USB | microUSB v2.0 | microUSB 2.0 | microUSB 2.0 |
| GPS | Yes, with A-GPS, BDS | Yes, with A-GPS | Yes, with A-GPS, GLONASS |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 16 GB, 3 GB RAM | 16 GB, 3 GB RAM | 32 GB, 4 GB RAM |
| Expandable Storage | microSD, up to 256 GB (dedicated slot) | microSD, up to 256 GB (uses SIM 2 slot) | microSD, up to 256 GB |
| USB OTG | Not Supported | Supported | Supported |
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| Fingerprint | |
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| Proximity Sensor | |
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| Accelerometer Sensor | |
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| Light Sensor | |
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| Magnetic-Field Sensor (Compass) | |
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| NFC | |
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| Type | Non-removable Li-Ion Battery | Non-removable Li-Ion Battery | Non-removable Li-Ion Battery |
| Capacity | 2730 mAh | 3000 mAh | 3000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
Rs. 12,990 
