Phone Comparison - Oppo R9s vs Oppo A77 (Mediatek) vs Asus Zenfone 4 Selfie Pro ZD552KL
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| Price Comparison (India) | - | - | |
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| Manufacturer | Oppo | Oppo | Asus |
| Announced | October 2016 | May 2017 | August 2017 |
| Status | Available - October 2016 | Available - May 2017 | Available - September 2017 |
| Price | Rs. 27,700 ($415.00) [Similarly Priced] | Rs. 23,580 ($363.00) [Similarly Priced] | Rs. 23,999 ($380.00) [Similarly Priced] |
| Colors | Silver, Gold | Gold, Rose Gold | Deepsea Black, Rose Pink, Sunlight Gold |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
153 x 74.3 x 6.58 mm (6.02 x 2.93 x 0.26 in) |
153.29 x 75.24 x 7.3 mm (6.04 x 2.96 x 0.29 in) |
154 x 74.8 x 7 mm (6.06 x 2.94 x 0.28 in) |
| Weight | 145 g (5.11 oz) | 153 g (5.4 oz) | 145 g (5.11 oz) |
| SIM Type | - | Dual SIM (Nano-SIM, dual stand-by) | 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 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 / 800 - Taiwan | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 2100 |
| 4G Network | 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 | LTE | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 40(2300) |
| Messaging | SMS, MMS, Push Mail, EMail, IM | SMS, MMS, Push Mail, EMail | SMS, MMS, Push Mail, EMail, IM |
| Build Features | - Fingerprint Sensor - Metal Build | - Fingerprint Sensor |
- Fingerprint Sensor |
| Notification LED | - | Yes | Yes |
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| OS | Android OS, v6.0.1 (Lollipop) | Android OS, v6.0 (Marshmallow) | Android 7.0 (Nougat) |
| Processor | Octa-core 2.0 GHz Cortex-A53, Qualcomm MSM8953 Snapdragon 625 | Octa-core (4x1.8 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53), MediaTek MT6750T | Octa-core 2.0 GHz Cortex-A53, Qualcomm MSM8953 Snapdragon 625 |
| GPU | Adreno 506 | Mali-T880 MP2 | Adreno 506 |
| RAM | 4 GB | 4 GB | 4 GB |
| Internal Memory | 64 GB | 64 GB | 64 GB |
| External Memory | microSD, up to 128 GB | microSD, up to 256 GB (uses SIM 2 slot) | microSD, up to 256 GB |
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| Type | IPS LCD Capacitive Touchscreen, 2.5D Curved Glass Display, Corning Gorilla Glass 5 | IPS LCD Capacitive Touchscreen | AMOLED Capacitive Touchscreen, Corning Gorilla Glass |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.5 inches | 5.5 inches | 5.5 inches |
| Resolution | 1080 x 1920 pixels (401 ppi) | 1080 x 1920 pixels (401 ppi) | 1080 x 1920 pixels (401 ppi) |
| Screen-to-Body Ratio | 73.19% | 72.13% | 72.22% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM Radio | FM Radio | FM radio |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 16 MP | 13 MP | 16 MP |
| Flash | LED Flash | LED Flash | Dual-LED (dual Tone) |
| Features | AutoFocus, Sony IMX398 Sensor, f/1.7 aperture, EIS, 6P Lens, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR | Phase Detection Autofocus, f/2.2, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama | Autofocus, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR |
| Video | 1080p@30fps | 1080p@30fps | 1080p@30fps |
| Front Camera | 16 MP, f/2.0 [Similar] | 16 MP, f/2.0 [Similar] | Dual 12 MP + 5 MP, LED flash [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 | HSPA, LTE, VoLTE | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps |
| Bluetooth | v4.2, A2DP, EDR, LE | 4.2, A2DP | 4.1, A2DP, EDR, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, hotspot | Wi-Fi 802.11 b/g/n, hotspot | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
| USB | microUSB v2.0, USB OTG, VOOC Flash Charge | microUSB 2.0 | microUSB 2.0 |
| GPS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS | Yes, with A-GPS, GLONASS |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 64 GB, 4 GB RAM | 64 GB, 4 GB RAM | 64 GB, 4 GB RAM |
| Expandable Storage | microSD, up to 128 GB | microSD, up to 256 GB (uses SIM 2 slot) | microSD, up to 256 GB |
| USB OTG | Supported | Not Supported | Not 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 | Non-removable Li-Ion Battery |
| Capacity | 3010 mAh | 3200 mAh | 3000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
Rs. 23,999 
