Phone Comparison - Oppo A57 vs vivo Y17 vs Xiaomi Redmi Note 9 Pro (Global Version)
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| Manufacturer | Oppo | vivo | Xiaomi |
| Announced | November 2016 | 2019, April | April 2020 |
| Status | Available - January 2017 | Available. Released 2019, April | Coming Soon - May 2020 |
| Price | Rs. 14,990 ($240.00) [Similarly Priced] | Rs. 17,990 ($0.00) [Similarly Priced] | - |
| Colors | Gold, Rose Gold | Mineral Blue, Mystic Purple | Tropical Green, Glacier White, Interstellar Gray |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
149.1 x 72.9 x 7.65 mm (5.87 x 2.87 x 0.3 in) |
159.4 x 76.8 x 8.9 mm (6.28 x 3.02 x 0.35 in) |
165.8 x 76.7 x 8.8 mm (6.53 x 3.02 x 0.35 in) |
| Weight | 147 g (5.19 oz) | 190.5 g (6.7.0.18 oz) | 209 g (7.37 oz) |
| SIM Type | Dual-SIM | Single SIM (Nano-SIM), 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 CDMA2000 1xEV-DO - A59m |
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM only) | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G Network | LTE band 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500) | LTE band 1(2100), 5(850), 8(900), 40(2300) | 1, 2, 3, 4, 5, 7, 8, 20, 28, 38, 40, 41 |
| Messaging | SMS, MMS, Push Mail, EMail | ||
| Build Features | - Fingerprint Sensor - Metal Build - 2.5D Curved Glass | - Fingerprint Sensor |
- Fingerprint Sensor (side-mounted) |
| Notification LED | Yes | - | - |
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| OS | Android OS, v6.0 (Marshmallow) | Android 9.0 (Pie) | Android 10 |
| User Interface | ColorOS 3.0 | Funtouch 9 | MIUI 11 |
| Processor | Octa-core 1.4 GHz Cortex-A53, Qualcomm MSM8940 Snapdragon 435 | Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53), Mediatek MT6765 Helio P35 (12nm) | Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver), Qualcomm SM7125 Snapdragon 720G (8 nm) |
| GPU | Adreno 505 | PowerVR GE8320 | Adreno 618 |
| RAM | 3 GB | 4 GB | 6 GB |
| Internal Memory | 32 GB | 128 GB | 128 GB |
| External Memory | microSD, up to 128 GB (uses SIM 2 slot) | No | microSDXC (dedicated slot) |
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| Type | IPS LCD capacitive touchscreen | IPS LCD Capacitive Touchscreen | IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 5 |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.2 inches | 6.35 inches | 6.67 inches |
| Resolution | 720 x 1280 pixels (282 ppi) | 720 x 1544 pixels (268 ppi) | 1080 x 2400 pixels (395 ppi) |
| Screen-to-Body Ratio | 68.79% | 81.57% | 84.28% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM radio | FM radio | - |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP | 13 MP + 8 MP + 2 MP | 64 MP + 8 MP + 5 MP + 2 MP |
| Flash | LED Flash | LED Flash | LED flash |
| Features | Phase Detection Autofocus, f/2.2, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama | 13 MP, f/2.2, PDAF 8 MP, f/2.2, 16mm (ultrawide) 2 MP, f/2.4, depth sensor Panorama, HDR |
64 MP, f/1.9, 26mm (wide), 1/1.72", 0.8µm, PDAF 8 MP, f/2.2, 119° (ultrawide), 1/4.0", 1.12µm 5 MP, f/2.4, (macro), 1/5.0", 1.12µm, AF 2 MP, f/2.4, (depth) HDR, panorama |
| Video | 1080p@30fps | 1080p@30fps | 2160p@30fps, 1080p@30/60/120fps, 720p@960fps |
| Front Camera | 16 MP [Similar] |
20 MP, f/2.0, 0.9µm HDR, 1080p@30fps [Similar] |
16 MP, f/2.0, 26mm (wide), 1/3.1", 1.0µm HDR 1080p@30fps [Similar] |
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| GPRS | Yes | Yes | Yes |
| Edge | Yes | Yes | Yes |
| 3G | HSPA, LTE, VoLTE | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps | HSPA 42.2/5.76 Mbps, LTE-A |
| Bluetooth | v4.1, A2DP | 5.0, A2DP, LE | 5.0, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, hotspot | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| USB | microUSB v2.0, USB Host | microUSB 2.0, USB On-The-Go | 2.0, Type-C 1.0 reversible connector |
| GPS | Yes, with A-GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS | Yes, with A-GPS, GLONASS, GALILEO, BDS |
| Browser | HTML5 | Yes | Yes |
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| Internal | 32 GB, 3 GB RAM | 128 GB, 4 GB RAM | 128 GB, 6 GB RAM or 64 GB, 4 GB RAM (UFS 2.1) |
| Expandable Storage | microSD, up to 128 GB (uses SIM 2 slot) | No | microSDXC (dedicated slot) |
| USB OTG | Supported | Supported | Supported |
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| Fingerprint | |
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| Proximity Sensor | |
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| Accelerometer 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-Po Battery Fast battery charging 18W |
Non-removable Li-Po Battery Fast battery charging 30W |
| Capacity | 2900 mAh | 5000 mAh | 5020 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
