| Hardware and OS | Vivo Y02s | Oppo A3s |
| Operating System | Android v12 | Android 8.1 (Oreo); ColorOS 5.1 |
| Custom UI | Funtouch OS | |
| Processor | Octa core (2.3 GHz, Quad core, Cortex A53 1.8 GHz, Quad core, Cortex A53) | Octa-core 1.8 GHz Cortex-A53 |
| Chipset | MediaTek Helio P35 MT6765 | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| Architecture | 64 bit | |
| Internal memory | | 16 GB, 2 GB RAM |
| GPU | PowerVR GE8320 | Adreno 506 |
| External memory | | microSD, up to 256 GB (dedicated slot) |
| RAM | 3 GB | |
| Display | Vivo Y02s | Oppo A3s |
| Size | 6.51 inches (16.54 cm) | 6.2" inc |
| Resolution | 720 x 1600 pixels | 720 x 1520 px |
| Aspect Ratio | 20:9 | |
| Touchscreen | | capacitive touchscreen |
| Type | IPS LCD | IPS LCD |
| Screen-to-Body Ratio | | 81.2% |
| Pixel Density | 270 ppi | 271 PPI |
| Display area | | 95.9 cm2 |
| Touch Screen | Yes, Capacitive Touchscreen, Multi-touch | |
| Display aspect ratio | | 19:9 (height:width) |
| Refresh Rate | 60 Hz | |
| Bezel-less display | Yes with waterdrop notch | |
| Colors | | 16M |
| Storage | Vivo Y02s | Oppo A3s |
| Internal Memory | 32 GB | |
| Expandable Memory | Yes, Up to 256 GB | |
| USB OTG | Yes | |
| Connectivity | Vivo Y02s | Oppo A3s |
| 2G Network | | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | | HSDPA 850 / 900 / 2100 |
| 4G Network | | LTE |
| Network Support | 4G , 3G, 2G | |
| Network | | GSM / HSPA / LTE |
| Bluetooth | Yes, v5.0 | 4.2, A2DP, LE |
| SIM card | | Dual SIM (Nano-SIM, dual stand-by) |
| GPS | Yes with A-GPS, Glonass | Yes, with A-GPS |
| NFC | No | |
| Edge | | Yes |
| SIM Size | SIM1: Nano, SIM2: Nano | |
| GPRS | | Yes |
| SIM Slot(s) | Dual SIM, GSM GSM | |
| USB Connectivity | Mass storage device, USB charging | |
| Speed | | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps |
| USB | | microUSB 2.0, USB On-The-Go |
| VoLTE | Yes | |
| Wi-Fi | Yes, Wi-Fi 802.11, b/g/n/n 5GHz | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
| Wi-Fi Features | Mobile Hotspot | |
| Camera | Vivo Y02s | 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 |
| Main camera | Vivo Y02s | Oppo A3s |
| Resolution | 8 MP f/2.0, Primary Camera | |
| Image Resolution | 3264 x 2448 Pixels | |
| Camera Setup | Single | |
| Flash | Yes, LED Flash | |
| Camera Features | Digital Zoom
Auto Flash | |
| Autofocus | Yes | |
| Video Recording | 1920x1080 @ 30 fps | |
| Selfie camera | Vivo Y02s | Oppo A3s |
| Resolution | 5 MP f/2.2, Primary Camera | |
| Camera Setup | Single | |
| Multimedia | Vivo Y02s | Oppo A3s |
| 3.5 mm Jack | | Yes |
| Radio | Yes | FM radio |
| Audio Jack | 3.5 mm | |
| Loudspeaker | Yes | |
| Other | Vivo Y02s | Oppo A3s |
| Release date | | 2018, July |
| Sensors | | Accelerometer, proximity, compass |
| Design | Vivo Y02s | Oppo A3s |
| Colors | | Red, Dark Purple |
| Dimensions | | 156.2 x 75.6 x 8.2 mm |
| Weight | 182 grams | 168 g |
| Build Material | Back: Plastic | |
| Colours | Vibrant Blue, Fluorite Black | |
| Width | 75.5 mm | |
| Height | 163.9 mm | |
| Thickness | 8.1 mm | |
| Battery | Vivo Y02s | Oppo A3s |
| Battery capacity | | 4230 mAh, Non-removable Li-Ion |
| Capacity | 5000 mAh | |
| Type | Li-Polymer | |
| Removable | No | |
| USB Type-C | Yes | |
| Sensors | Vivo Y02s | Oppo A3s |
| Fingerprint Sensor | Yes | |
| Fingerprint Sensor Position | Side | |
| Other Sensors | Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope | |
