Phone Comparison - Oppo A77 vs Oppo A71 vs Xiaomi Mi A1
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| Price Comparison (India) | - | ||
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| Manufacturer | Oppo | Oppo | Xiaomi |
| Announced | July 2017 | September 2017 | September 2017 |
| Status | Available - July 2017 | Available - September 2017 | Coming Soon - September 2017 |
| Price | - | Rs. 12,990 ($199.00) [Similarly Priced] | Rs. 14,999 ($245.00) [Similarly Priced] |
| Colors | Gold, Rose Gold | Gold, Black | Gold, Pink, Black |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
153.3 x 75.9 x 7.4 mm (6.04 x 2.99 x 0.29 in) |
148.1 x 73.8 x 7.6 mm (5.83 x 2.91 x 0.3 in) |
155.4 x 75.8 x 7.3 mm (6.12 x 2.98 x 0.29 in) |
| Weight | 148 g (5.22 oz) | 137 g (4.83 oz) | 165 g (5.82 oz) |
| SIM Type | Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) | 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 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 2100 |
| 4G Network | LTE | LTE | LTE |
| Messaging | SMS, MMS, Push Mail, EMail | SMS, MMS, Push Mail, EMail | SMS, MMS, Push Mail, EMail |
| Build Features | - Fingerprint Sensor |
- | - Fingerprint Sensor |
| Notification LED | Yes | Yes | Yes |
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| OS | Android OS, v7.0 (Nougat) | Android OS, v7.1 (Nougat) | Android OS, v7.1.1 Nougat |
| User Interface | - | ColorOS 3.1 | Android One (Stock Android) |
| Processor | Octa-core 2.0 GHz Cortex-A53, Qualcomm MSM8953 Snapdragon 625 | Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53), MediaTek MT6750 | Octa-core 2.0 GHz Cortex-A53, Qualcomm MSM8953 Snapdragon 625 |
| GPU | Adreno 506 | Mali-T880 MP2 | Adreno 506 |
| RAM | 4 GB | 3 GB | 4 GB |
| Internal Memory | 64 GB | 16 GB | 64 GB |
| External Memory | microSD, up to 256 GB (uses SIM 2 slot) | microSD, up to 256 GB (uses SIM 2 slot) | microSD, up to 128 GB |
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| Type | IPS LCD Capacitive Touchscreen | IPS LCD Capacitive Touchscreen | IPS LCD Capacitive Touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.5 inches | 5.2 inches | 5.5 inches |
| Resolution | 1080 x 1920 pixels (401 ppi) | 720 x 1280 pixels (282 ppi) | 1080 x 1920 pixels (401 ppi) |
| Screen-to-Body Ratio | 71.50% | 68.41% | 70.63% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM Radio | FM Radio | N/A |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP | 13 MP | Dual 12 MP |
| Flash | LED Flash | LED Flash | Dual-LED (Dual Tone) |
| Features | Phase Detection Autofocus, f/2.2, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama | Phase Detection Autofocus, f/2.2, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama | Phase Detection Autofocus, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR, Wide-angle lens - 12MP, 1.25μm, f/2.2 aperture; Telephoto lens - 12MP, 1.0μm, f/2.6 aperture |
| Video | 1080p@30fps | 1080p@30fps | 2160p@30fps, 1080p@30fps, 720p@120fps |
| Front Camera | 16 MP, f/2.0 [Similar] | 5 MP, f/2.4 [Similar] | 16 MP [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA, LTE, VoLTE | HSPA, LTE, VoLTE | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps, VoLTE |
| Bluetooth | 4.2, A2DP | 4.2, A2DP | v4.2, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 b/g/n, hotspot | Wi-Fi 802.11 b/g/n, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot |
| USB | microUSB 2.0 | microUSB 2.0 | Type-C 1.0 reversible connector, USB On-The-Go |
| GPS | Yes, with A-GPS | Yes, with A-GPS | Yes, with A-GPS, GLONASS |
| Browser | HTML5 | HTML5 | HTML5 |
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| Internal | 64 GB, 4 GB RAM | 16 GB, 3 GB RAM | 64 GB, 4 GB RAM |
| Expandable Storage | microSD, up to 256 GB (uses SIM 2 slot) | microSD, up to 256 GB (uses SIM 2 slot) | microSD, up to 128 GB |
| USB OTG | Not Supported | Supported | Yes |
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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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| Gyroscope Sensor | |
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| Infrared 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 | 3200 mAh | 3000 mAh | 3080 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
Rs. 12,990 
