Phone Comparison - Oppo A77 vs Samsung Galaxy Note 9 vs Samsung Galaxy M31
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| Price Comparison (India) | - | ||
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| Manufacturer | Oppo | Samsung | Samsung |
| Announced | July 2017 | August 2018 | 2020, February 25 |
| Status | Available - July 2017 | Available - August 2018 | Available. Released 2020, March 5 |
| Price | - | Rs. 67,900 ($999.00) [Similarly Priced] | Rs. 14,999 ($0.00) [Similarly Priced] |
| Colors | Gold, Rose Gold | Metallic copper, Lavender purple, Ocean blue, Midnight black | Ocean Blue, Space Black, Red |
| Form Factor | Candybar | Candybar | Candybar |
| Dimension |
153.3 x 75.9 x 7.4 mm (6.04 x 2.99 x 0.29 in) |
161.9 x 76.4 x 8.8 mm (6.37 x 3.01 x 0.35 in) |
159.2 x 75.1 x 8.9 mm (6.27 x 2.96 x 0.35 in) |
| Weight | 148 g (5.22 oz) | 201 g (7.09 oz) | 191 g (6.74 oz) |
| SIM Type | Dual SIM (Nano-SIM, dual stand-by) | Single SIM (Nano-SIM), Hybrid 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 (dual-SIM model only) | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network | LTE | LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 32(1500), 38(2600), 39(1900), 40(2300), 41(2500), 66(1700/2100) | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500) |
| Messaging | SMS, MMS, Push Mail, EMail | SMS, MMS, Push Mail, EMail, IM | |
| Build Features | - Fingerprint Sensor |
- Fingerprint Sensor - Samsung Pay (Visa, MasterCard certified) - IP68 dust/water proof (up to 1.5m for 30 mins) - Stylus (Bluetooth integration) |
- Fingerprint Sensor |
| Notification LED | Yes | Yes | - |
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| OS | Android OS, v7.0 (Nougat) | Android 8.1 (Oreo) | Android 10.0 |
| Processor | Octa-core 2.0 GHz Cortex-A53, Qualcomm MSM8953 Snapdragon 625 | Octa-core (4x2.7 GHz Mongoose M3 & 4x1.8 GHz Cortex-A55) - EMEA Octa-core (4x2.8 GHz Kryo 385 Gold & 4x1.7 GHz Kryo 385 Silver) - USA/LATAM, China, Exynos 9810 Octa - EMEA Qualcomm SDM845 Snapdragon 845 - USA/LATAM, China |
Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53), Exynos 9611 (10nm) |
| GPU | Adreno 506 | Mali-G72 MP18 - EMEA Adreno 630 - USA/LATAM, China |
Mali-G72 MP3 |
| RAM | 4 GB | 6/8 GB | 6 GB |
| Internal Memory | 64 GB | 128/512 GB | 128 GB |
| External Memory | microSD, up to 256 GB (uses SIM 2 slot) | microSD, up to 512 GB (uses SIM 2 slot) - dual SIM model only | microSD, up to 512 GB |
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| Type | IPS LCD Capacitive Touchscreen | Super AMOLED Capacitive Touchscreen, Corning Gorilla Glass 5 | Full HD+ Infinity-U Super AMOLED Capacitive Touchscreen |
| Colors | 16M colors | 16M colors | 16M colors |
| Size | 5.5 inches | 6.4 inches | 6.4 inches |
| Resolution | 1080 x 1920 pixels (401 ppi) | 1440 x 2960 pixels (514 ppi) | 1080 x 2340 pixels (403 ppi) |
| Screen-to-Body Ratio | 71.50% | 84.15% | 83.97% |
| Multi-Touch |  |
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| 3.5mm Jack | |
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| Radio | FM Radio | No | Yes |
| Games | Yes + Downloadable | Yes + Downloadable | Yes + Downloadable |
| Loud Speaker | |
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| Rear Camera | 13 MP | Dual 12 MP + 12 MP | 64 MP + 8 MP + 5 MP + 5 MP |
| Flash | LED Flash | LED flash | LED Flash |
| Features | Phase Detection Autofocus, f/2.2, Geo-tagging, Touch Focus, Face Detection, HDR, Panorama | 12 MP, f/1.5-2.4, 26mm, 1/2.55", 1.4µm, dual pixel PDAF, OIS 12 MP, f/2.4, 52mm, 1/3.6", 1µm, AF, OIS, 2x optical zoom Dual Video Call, Auto-HDR |
64 MP, f/1.8, 26mm (wide), 1/1.72", 0.8µm, PDAF 8 MP, f/2.2, 12mm (ultrawide), 1/4.0", 1.12µm 5 MP, f/2.2, 25mm (macro), 1/5.0", 1.12µm 5 MP, f/2.2, (depth) HDR, Panorama |
| Video | 1080p@30fps | 2160p@60fps, 1080p@240fps, 720p@960fps, HDR, Dual-Video Rec | 2160p@30fps, 1080p@30fps, gyro-EIS |
| Front Camera | 16 MP, f/2.0 [Similar] | 8 MP, f/1.7, 25mm, 1/3.6", 1.22µm, AF, Dual video call, Auto-HDR, 1440p@30fps [Similar] |
32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm 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 (5CA) Cat18 1200/200 Mbps | HSPA, LTE-A |
| Bluetooth | 4.2, A2DP | 5.0, A2DP, LE, aptX | 5.0, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 b/g/n, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| USB | microUSB 2.0 | 3.1, Type-C 1.0 reversible connector | 2.0, Type-C 1.0 reversible connector |
| GPS | Yes, with A-GPS | Yes, with A-GPS, GLONASS, BDS, GALILEO | Yes, with A-GPS, GLONASS |
| Browser | HTML5 | HTML5 | Yes |
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| Internal | 64 GB, 4 GB RAM | 128/512 GB, 6/8 GB RAM | 128 GB, 6 GB RAM or 64 GB, 4 GB RAM |
| Expandable Storage | microSD, up to 256 GB (uses SIM 2 slot) | microSD, up to 512 GB (uses SIM 2 slot) - dual SIM model only | microSD, up to 512 GB |
| USB OTG | Not Supported | Not Supported | Yes |
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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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| Gyroscope Sensor | |
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| Barometer Sensor | |
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| Heart-rate Sensor | |
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| NFC | |
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| Type | Non-removable Li-Ion Battery | Non-removable Li-Ion Battery | Non-removable Li-Po Battery Fast battery charging 15W |
| Capacity | 3200 mAh | 4000 mAh | 6000 mAh |
| Stand by | - | - | - |
| Talk Time | - | - | - |
Rs. 67,900 
