Phone Comparison - Samsung Galaxy J7 vs Lenovo K4 Note vs Oppo A57
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| Price Comparison (India) | - | - | |
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| Manufacturer | Samsung | Lenovo | Oppo |
| Announced | June 2015 | January 2016 | November 2016 |
| Status | Available - June 2015 | Available - January 2016 | Available - January 2017 |
| Price | Rs. 13,400 ($197.06) [Similarly Priced] | Rs. 10,999 ($161.75) [Similarly Priced] | Rs. 14,990 ($240.00) [Similarly Priced] |
| Colors | White, Black | Black | Gold, Rose Gold |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
152.4 x 78.6 x 7.5 mm (6 x 3.09 x 0.3 in) |
153.6 x 76.5 x 9.15 mm (6.05 x 3.01 x 0.36 in) |
149.1 x 72.9 x 7.65 mm (5.87 x 2.87 x 0.3 in) |
| Weight | 171 g (6.03 oz) | 158 g (5.57 oz) | 147 g (5.19 oz) |
| SIM Type | - | - | 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 CDMA2000 1xEV-DO - A59m |
| 3G Network | HSDPA 900 / 2100 | HSDPA 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE | LTE | LTE band 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500) |
| Messaging | SMS, MMS, EMail, IM | SMS, MMS, EMail, IM | SMS, MMS, Push Mail, EMail |
| Build Features | - | - Fingerprint Sensor - Dual Front Speakers - Fast Charging |
- Fingerprint Sensor - Metal Build - 2.5D Curved Glass |
| Notification LED | - | - | Yes |
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| OS | Android OS, v5.1 (Lollipop) | Android OS, v5.1 (Lollipop) | Android OS, v6.0 (Marshmallow) |
| Processor | Octa-core 1.2 GHz, Exynos 7580 | Octa-core 1.3 GHz Cortex-A53, Mediatek MT6753 | Octa-core 1.4 GHz Cortex-A53, Qualcomm MSM8940 Snapdragon 435 |
| GPU | Mali-T720 | Mali-T720MP3 | Adreno 505 |
| RAM | 1.5 GB | 3 GB | 3 GB |
| Internal Memory | 16 GB | 16 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 | Capacitive Touchscreen, Corning Gorilla Glass 3 | IPS LCD capacitive touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.5 inches | 5.5 inches | 5.2 inches |
| Resolution | 720 x 1280 pixels (267 ppi) | 1080 x 1920 pixels (401 ppi) | 720 x 1280 pixels (282 ppi) |
| Screen-to-Body Ratio | 69.63% | 70.80% | 68.79% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio with RDS; recording | FM Radio | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP, 4128 x 3096 pixels | 13 MP, 4208 x 3120 pixels | 13 MP |
| Flash | LED flash | Dual-LED (Dual Tone) | LED Flash |
| 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 | Phase Detection Auto focus, 1/3.06' Sensor Size, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama | Phase Detection Autofocus, f/2.2, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama |
| Video | 1080p@30fps | 1080p@30fps | 1080p@30fps |
| Front Camera | 5 MP [Similar] | 5 MP, 1080p [Similar] | 16 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, LTE, VoLTE |
| Bluetooth | v4.1, A2DP | v4.0, A2DP, LE | v4.1, A2DP |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n, hotspot |
| USB | microUSB v2.0 | microUSB v2.0, USB Host, Fast Charge 2.0 | microUSB v2.0, USB Host |
| GPS | Yes, with A-GPS, GLONASS | Yes, with A-GPS, GLONASS | Yes, with A-GPS |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 16 GB, 1.5 GB RAM | 16 GB, 3 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 | 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 | Non-removable Li-Po Battery | Non-removable Li-Ion Battery |
| Capacity | 3000 mAh | 3300 mAh | 2900 mAh |
| Stand by | Up to 354 h | Up to 265 h | - |
| Talk Time | Up to 18 h (3G) | Up to 22 h | - |
Rs. 14,249 
Rs. 14,190 
