Want to compare Vivo S1 vs Oppo A9 mobile? You have come to the right place. Here you can find Vivo S1 vs Oppo A9 comparison based on display size, processor speed, camera resolution, user experience, memory size, connectivity strength, and overall dimension.
Related: Check out latest Vivo S1 price on Priceo.
On one hand, Vivo S1 offers a good-looking design, long-lasting battery life, and dependable performance. It also offers better performance to boot, along with sharper cameras at the back. It has a 6.38-inch Super AMOLED display, which has a pixel density of 404 PPI. The Vivo S1 is armed with a triple camera setup consisting of 16MP, 8MP, and 2MP lenses.
On the other hand, Oppo A9 comes with a waterdrop display that gets an elegant curve. It stands 6.53-inch and bears a screen resolution of 1,080 x 2,340 pixels along with a pixel density of 395 PPI to offer crystal clear view. With the help of the MediaTek Helio P70 chipset, Oppo A9 presents seamless user experience be it games or multiple app consumption.
Our recommendation: We recommend buying Oppo A9 over Vivo S1 because it has a superb camera, amazing battery backup and huge storage.
Vivo S1 vs Oppo A9 Comparison Table
| Key Specs | ||||
| Display | 6.50-inch | 6.38-inch | ||
| Processor | Qualcomm Snapdragon 665 | MediaTek Helio P65 | ||
| Front Camera | 16-megapixel | 32-megapixel | ||
| Rear Camera | 48-megapixel + 8-megapixel + 2-megapixel + 2-megapixel | 16-megapixel + 8-megapixel + 5-megapixel | ||
| RAM | 4GB | 4GB | ||
| Storage | 128GB | 128GB | ||
| Battery Capacity | 5000mAh | 4500mAh | ||
| OS | Android 9 Pie | Android Pie | ||
| Resolution | 720×1600 pixels | 1080×2340 pixels | ||
| Ratings | ||||
| Overall Rating | ||||
| Design Rating | ||||
| Display Rating | ||||
| Software Rating | ||||
| Performance Rating | ||||
| Battery Life Rating | ||||
| Camera Rating | ||||
| Value for Money Rating | ||||
| General | ||||
| Brand | Oppo | Vivo | ||
| Model | A9 2020 | S1 | ||
| Release date | September 11, 2019 | July 1, 2019 | ||
| Launched in India | Yes | Yes | ||
| Form factor | Touchscreen | Touchscreen | ||
| Body type | Plastic | – | ||
| Thickness | 9.1 | – | ||
| Weight (g) | 195.00 | 179.00 | ||
| Battery capacity (mAh) | 5000 | 4500 | ||
| Colours | Marine Green, Space Purple | Skyline Blue, Diamond Black | ||
| Dimensions (mm) | – | 159.53 x 75.23 x 8.13 | ||
| Removable battery | – | No | ||
| Fast charging | – | Proprietary | ||
| Wireless charging | – | No | ||
| Display | ||||
| Screen size (inches) | 6.50 | 6.38 | ||
| Touchscreen | Yes | Yes | ||
| Resolution | 720×1600 pixels | 1080×2340 pixels | ||
| Protection type | Gorilla Glass | – | ||
| Aspect ratio | – | 19.5:9 | ||
| Hardware | ||||
| Processor | octa-core | octa-core | ||
| Processor make | Qualcomm Snapdragon 665 | MediaTek Helio P65 (MT6768) | ||
| RAM | 4GB | 4GB | ||
| Internal storage | 128GB | 128GB | ||
| Expandable storage | Yes | No | ||
| Expandable storage type | microSD | – | ||
| Expandable storage up to (GB) | 256 | – | ||
| Dedicated microSD slot | Yes | No | ||
| Camera | ||||
| Rear camera | 48-megapixel + 8-megapixel + 2-megapixel + 2-megapixel | 16-megapixel (f/1.78) + 8-megapixel (f/2.2) + 5-megapixel (f/2.4) | ||
| Rear flash | Yes | – | ||
| Front camera | 16-megapixel | 32-megapixel (f/2.0) | ||
| Software | ||||
| Operating system | Android 9 Pie | Android Pie | ||
| Skin | ColorOS 6.0.1 | Funtouch OS 9 | ||
| Connectivity | ||||
| Wi-Fi | Yes | Yes | ||
| GPS | Yes | Yes | ||
| Bluetooth | Yes | Yes, v 5.00 | ||
| Number of SIMs | 2 | 2 | ||
| Wi-Fi Direct | Yes | – | ||
| Active 4G on both SIM cards | Yes | – | ||
| USB OTG | – | Yes | ||
| Sim 1 | ||||
| SIM Type | Nano-SIM | Nano-SIM | ||
| 3G | Yes | – | ||
| 4G/ LTE | Yes | – | ||
| Sim 2 | ||||
| SIM Type | Nano-SIM | Nano-SIM | ||
| GSM/CDMA | GSM | – | ||
| 3G | Yes | – | ||
| 4G/ LTE | Yes | – | ||
| Sensors | ||||
| Fingerprint sensor | Yes | Yes | ||
| Proximity sensor | Yes | Yes | ||
| Accelerometer | Yes | Yes | ||
| Ambient light sensor | Yes | Yes | ||
| Compass/ Magnetometer | – | Yes | ||
| Gyroscope | – | Yes | ||
Vivo S1 vs Oppo A9 Comparison Video
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