| OnePlus 9 |
Oppo A3s |
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| Hardware and OS | OnePlus 9 | Oppo A3s |
| Operating system | Android v11 | Android 8.1 (Oreo); ColorOS 5.1 |
| Processor | Octa core (2.84 GHz, Single core, Kryo 680 2.42 GHz, Tri core, Kryo 680 1.8 GHz, Quad core, Kryo 680) | Octa-core 1.8 GHz Cortex-A53 |
| Chipset | Qualcomm Snapdragon 888 | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| GPU | Adreno 506 | |
| RAM | 8 GB | |
| Internal memory | 128 GB | 16 GB, 2 GB RAM |
| External memory | microSD, up to 256 GB (dedicated slot) | |
| Expandable Memory | No | |
| Custom UI | Oxygen OS | |
| Graphics | Adreno 660 | |
| Display | OnePlus 9 | Oppo A3s |
| Type | IPS LCD | |
| Size | 6.2" inc | |
| Resolution | 1080 x 2400 pixels | 720 x 1520 px |
| Screen Size | 6.55 inches (16.64 cm) | |
| Touchscreen | capacitive touchscreen | |
| Screen-to-Body Ratio | 81.2% | |
| Display Type | Fluid AMOLED | |
| Display area | 95.9 cm2 | |
| Display aspect ratio | 19:9 (height:width) | |
| Touch Screen | Yes, Capacitive Touchscreen, Multi-touch | |
| Pixel Density | 402 ppi | 271 PPI |
| Screen Protection | Corning Gorilla Glass, | |
| Colors | 16M | |
| Aspect Ratio | 20:9 | |
| Connectivity | OnePlus 9 | Oppo A3s |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 850 / 900 / 2100 | |
| 4G Network | LTE | |
| Wi-Fi | Yes, Wi-Fi 802.11, a/ac/ax/b/g/n, MIMO | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
| Network | 5G, 4G , 3G, 2G | GSM / HSPA / LTE |
| SIM card | Dual SIM (Nano-SIM, dual stand-by) | |
| Bluetooth | Yes, v5.2 | 4.2, A2DP, LE |
| Edge | Yes | |
| GPRS | Yes | |
| GPS | Yes with A-GPS, Glonass | Yes, with A-GPS |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps | |
| USB | microUSB 2.0, USB On-The-Go | |
| NFC | Yes | |
| VoLTE | Yes | |
| Wi-Fi Features | Mobile Hotspot | |
| USB Connectivity | Mass storage device, USB charging | |
| Main Camera | OnePlus 9 | Oppo A3s |
| Resolution | 48 MP f/1.8, Wide Angle Primary Camera(23 mm focal length, 1.4" sensor size, 1.12µm pixel size)50 MP f/2.2, Wide Angle, Ultra-Wide Angle Camera(14 mm focal length, 1.56" sensor size, 1µm pixel size)2 MP f/2.4 Mono Camera | |
| Image Resolution | 8000 x 6000 Pixels | |
| Flash | Yes, Dual LED Flash | |
| Camera Features | Digital Zoom Auto Flash Face detection Touch to focus | |
| Autofocus | Yes, Phase Detection autofocus, Continuos autofocus | |
| Camera Setup | Triple | |
| Sensor | Exmor-RS CMOS Sensor, UltraPixel BSI image sensor | |
| Video Recording | 7680x4320 @ 30 fps 3840x2160 @ 60 fps 1920x1080 @ 240 fps 1280x720 @ 480 fps | |
| Settings | Exposure compensation, ISO control | |
| Front Camera | OnePlus 9 | Oppo A3s |
| Resolution | 16 MP f/2.4, Wide Angle Primary Camera(3" sensor size, 1µm pixel size) | |
| Flash | Yes, Screen flash | |
| Camera Setup | Single | |
| Sensor | Exmor RS | |
| Video Recording | 1920x1080 @ 30 fps | |
| Camera Features | Fixed Focus | |
| Camera | OnePlus 9 | Oppo A3s |
| Main camera | 13 MP, Dual | |
| Specs | 13 MP, f/2.2, AF -2 MP, f/2.4, depth sensor | |
| Features | LED flash, HDR, panorama | |
| Video | 1080p@30fps | |
| Selfie camera | 8 MP, Single | |
| Multimedia | OnePlus 9 | Oppo A3s |
| 3.5 mm Jack | Yes | |
| Radio | FM radio | |
| Audio Jack | USB Type-C | |
| FM Radio | No | |
| Audio Features | Dolby Atmos | |
| Design | OnePlus 9 | Oppo A3s |
| Colors | Red, Dark Purple | |
| Dimensions | 156.2 x 75.6 x 8.2 mm | |
| Weight | 183 grams | 168 g |
| Height | 160 mm | |
| Width | 73.9 mm | |
| Thickness | 8.1 mm | |
| Build Material | Back: Gorilla Glass | |
| Colours | Astral Black, Arctic Sky, Winter Mist | |
| Battery | OnePlus 9 | Oppo A3s |
| Battery capacity | 4230 mAh, Non-removable Li-Ion | |
| Type | Li-ion | |
| Capacity | 4500 mAh | |
| Removable | No | |
| Quick Charging | Yes, Warp, 65W: 100 % in 29 minutes | |
| USB Type-C | Yes | |
| Other | OnePlus 9 | Oppo A3s |
| Release date | 2018, July | |
| Sensors | Accelerometer, proximity, compass | |
| Features | OnePlus 9 | Oppo A3s |
| Fingerprint Sensor | Yes | |
| Other Sensors | Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope |
