Oppo A91 vs Oppo A31 compare
The best smartphone comparison tool: compare Oppo A91 vs Oppo A31 and choose the best model for you
Smartphone 3
Oppo A91 vs Oppo A31
What is the difference between the Oppo A91 and Oppo A31? Which one is better? The answers to these questions and many more can be found here in this detailed comparison of the two phones. Discover the differences in specs between these two desirable devices, from screen size to battery life, in the table below. We have all the information you need to choose the best phone for you.
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Common specs
| Brand and model | Oppo A91 | Oppo A31 | |
| Rating | (+) | (+) | |
| Review | Oppo A91 Review | Oppo A31 Review | |
| Release date | 2019, December | 2020, February 13 | |
| Dimensions (HxWxD) | 160.2 x 73.3 x 7.9 mm | 6.31 x 6.31 x 2.89 in | 163.9 x 75.5 x 8.3 mm | 6.45 x 6.45 x 2.97 in | |
| Weight | 172 g | 6.07 oz | 180 g | 6.35 oz | |
| Body Build | Glass front (Gorilla Glass 5), plastic back, plastic frame | Glass front, plastic back, plastic frame | |
| Colors | Dark Blue, Red, Blue | Fantasy White, Mystery Black | |
| Battery | 4025 mAh, Non-removable Li-Po | 4230 mAh, Non-removable Li-Po | |
| Approximate price | 260 EUR | 180 EUR |
Screen
| Technology | AMOLED | IPS LCD | |
| Touchscreen | capacitive touchscreen | capacitive touchscreen | |
| Display colors | 16M | 16M | |
| Screen size | 6.4" inc | 6.5" inc | |
| Screen area | 100.4 cm2 | 102.0 cm2 | |
| Screen format | 20:9 (height:width) | 20:9 (height:width) | |
| Screen to body ratio | 85.5% | 82.4% | |
| Screen resolution | 1080 x 2400 px | 720 x 1600 px | |
| Screen PPI /points per inch/ | 408 PPI | 270 PPI | |
| Screen protection | Corning Gorilla Glass 5 | ||
| Other specs | - 430 nits typ. brightness | - 480 nits typ. brightness |
Camera and Video
| Rear camera, main | 48 MP, Quad | 12 MP, Triple | |
| Camera specs | -48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF -8 MP, f/2.2, 13mm (ultrawide), 1/4.0", 1.12µm -2 MP B/W, f/2.4, 1/5.0", 1.75µm -2 MP, f/2.4, 1/5.0", 1.75µm, depth sensor |
-12 MP, f/1.8, (wide), PDAF -2 MP, f/2.4, 27mm (macro), 1/5.0'', 1.75µm -2 MP, f/2.4, (depth) |
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| Functions | LED flash, HDR, panorama | LED flash, HDR, panorama | |
| Video | 1080p@30fps, gyro-EIS | 1080p@30fps | |
| Front camera, selfie | 16 MP, Single | 8 MP, Single | |
| Specifications | 16 MP, f/2.0, 26mm (wide), 1/3.1'', 1.0µm | 8 MP, f/2.0 | |
| Functions | HDR | HDR | |
| Video | 1080p@30fps | 1080p@30fps |
Performance
| Operating system - OS | Android 9.0 (Pie); ColorOS 6.1 | Android 9.0 (Pie); ColorOS 6.1 | |
| Chipset | - Mediatek MT6771V Helio P70 (12nm) | - Mediatek MT6765V/CB Helio P35 (12nm) | |
| Processor CPU | - Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53) | - Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53) | |
| Graphics processor GPU | Mali-G72 MP3 | PowerVR GE8320 | |
| External memory | microSD, up to 256 GB (dedicated slot) | microSDXC (dedicated slot) | |
| Internal memory | 128GB 8GB RAM | 128GB 4GB RAM |
Benchmark
| Antutu 8 Total | 151394 | 105221 | |
| Antutu 7 Total | |||
| GeekBench 5 Single Core | 300 | 138 | |
| GeekBench 5 Multi-Core | 1300 | 834 |
Communication and Connectivity
| SIM card | Dual SIM (Nano-SIM, dual stand-by) | Dual SIM (Nano-SIM, dual stand-by) | |
| Network | GSM / CDMA / HSPA / LTE | GSM / HSPA / LTE | |
Show all network frequencies: |
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| Speed | HSPA 42.2/11.5 Mbps, LTE-A | HSPA 42.2/5.76 Mbps, LTE-A | |
| GPRS | Yes | Yes | |
| Edge | Yes | Yes | |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac/ax, dual-band, Wi-Fi Direct, hotspot | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | |
| GPS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS, BDS | |
| NFC | |||
| USB | 2.0, Type-C 1.0 reversible connector, USB On-The-Go | microUSB 2.0, USB On-The-Go | |
| Bluetooth | 4.2, A2DP, LE | 5.0, A2DP, LE | |
Music and Audio
| Radio | FM radio | FM radio | |
| Headphone jack | Yes | Yes | |
| Others | - Active noise cancellation with dedicated mic |
Other features
| Sensors | - Fingerprint (under display, optical), accelerometer, gyro, proximity, compass | - Fingerprint (rear-mounted), accelerometer, proximity, compass | |
| Other extras |
- Fast charging 20W, 50% in 30 min -VOOC 3.0 |
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