| Hardware and OS | Samsung W2018 | Oppo A3s |
| Operating system | Android v7.1.1 (Nougat) | Android 8.1 (Oreo); ColorOS 5.1 |
| Processor | Qualcomm Snapdragon 835 MSM8998 | Octa-core 1.8 GHz Cortex-A53 |
| Chipset | | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| GPU | Adreno 540 | Adreno 506 |
| RAM | 6GB | |
| Internal memory | | 16 GB, 2 GB RAM |
| Internal Storage | 64GB, Up to 256 GB Expandable | |
| External memory | | microSD, up to 256 GB (dedicated slot) |
| Memory Card Slot | microSD | |
| User Interface | No | |
| Display | Samsung W2018 | Oppo A3s |
| Type | Super AMOLED capacitive touchscreen | IPS LCD |
| Size | 4.2 inches (10.67 cm) | 6.2" inc |
| Resolution | Full HD (1080 x 1920 pixels) | 720 x 1520 px |
| Touchscreen | Yes Multi Touch Support | capacitive touchscreen |
| Screen-to-Body Ratio | | 81.2% |
| Display area | | 95.9 cm2 |
| Display aspect ratio | | 19:9 (height:width) |
| Protection | Not Included | |
| Pixel Density | 525 PPI | 271 PPI |
| Features | 4.2 inches (10.67 cm), Full HD (1080 x 1920 pixels), 525 ppi, Super AMOLED, Capacitive Touchscreen, Multi-touch, 58.07 % Screen to Body Ratio | |
| Colors | | 16M |
| Connectivity | Samsung W2018 | Oppo A3s |
| 2G Network | | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network | | HSDPA 850 / 900 / 2100 |
| NFC | yes | |
| 4G Network | | LTE |
| Wi-Fi | Wi-Fi 802.11, a/ac/b/g/n/n 5GHz | Wi-Fi 802.11 b/g/n, WiFi Direct, hotspot |
| SIM | Nano SIM | |
| Network | | GSM / HSPA / LTE |
| Dual SIM | Nano, Nano (Hybrid) | |
| SIM card | | Dual SIM (Nano-SIM, dual stand-by) |
| Wireless Charging | No | |
| Bluetooth | | 4.2, A2DP, LE |
| Edge | | Yes |
| GPRS | | Yes |
| GPS | with A-GPS, Glonass | Yes, with A-GPS |
| Speed | | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps |
| USB | (Doesn't support micro-USB) | microUSB 2.0, USB On-The-Go |
| Camera | Samsung W2018 | Oppo A3s |
| Image | 1080 x 1920 pixels | |
| Main camera | 12 MP Primary Camera | 13 MP, Dual |
| Specs | | 13 MP, f/2.2, AF
-2 MP, f/2.4, depth sensor |
| Features | Yes with LED Flash | LED flash, HDR, panorama |
| Video | | 1080p@30fps |
| Selfie camera | 5 MP Front Camera | 8 MP, Single |
| Multimedia | Samsung W2018 | Oppo A3s |
| Loudspeaker | Yes | |
| 3.5 mm Jack | yes | Yes |
| Radio | No | FM radio |
| Design | Samsung W2018 | Oppo A3s |
| Type | Bar | |
| Colors | | Red, Dark Purple |
| Dimensions | 132.2 x 63.2 x 15.95 (lxbxh- in mm) | 156.2 x 75.6 x 8.2 mm |
| Weight | 247 grams | 168 g |
| Battery | Samsung W2018 | Oppo A3s |
| Capacity | 2300 mAh | |
| Placement | Non-Removable | |
| Battery capacity | | 4230 mAh, Non-removable Li-Ion |
| Other | Samsung W2018 | Oppo A3s |
| Release date | | 2018, July |
| Sensors | Light sensor, Proximity sensor, Accelerometer, Barometer, Compass, Gyroscope | Accelerometer, proximity, compass |
