| Local Name | A3s |
| Additional Information | For India. Also known as Oppo CPH1803 |
| Technology | GSM / HSPA / LTE |
| 4G Bands | LTE band 1(2100), 3(1800), 5(850), 8(900), 38(2600), 40(2300), 41(2500) |
| 3G Bands | HSDPA 850 / 900 / 2100 |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 300/50 Mbps |
| Announced | 2018, July |
| Status | Available. Released 2018, July |
| Dimensions | 156.2 x 75.6 x 8.2 mm (6.15 x 2.98 x 0.32 in) |
| Weight | 168 g (5.93 oz) |
| Build | Glass front (Gorilla Glass 3), plastic back, plastic frame |
| SIM | Dual SIM (Nano-SIM, dual stand-by) |
| Display Type | IPS LCD capacitive touchscreen, 16M colors |
| Screen Size | 6.2 inches, 95.9 cm2 (~81.2% screen-to-body ratio) |
| Resolution | 720 x 1520 pixels, 19:9 ratio (~271 ppi density) |
| Protection | Corning Gorilla Glass 3 |
| OS | Android 8.1 (Oreo); ColorOS 5.1 |
| Chipset | Qualcomm SDM450 Snapdragon 450 (14 nm) |
| CPU | Octa-core 1.8 GHz Cortex-A53 |
| GPU | Adreno 506 |
| Card Slot | microSDXC (dedicated slot) |
| Internal Memory | 16GB 2GB RAM, 32GB 3GB RAM, 64GB 4GB RAM | eMMC 5.1 |
| Camera Features | LED flash, HDR, panorama |
| Video | 1080p@30fps |
| Loudspeaker | Yes |
| 3.5mm Jack | Yes |
| WLAN | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot |
| Bluetooth | 4.2, A2DP, LE |
| GPS | Yes, with A-GPS |
| Radio | FM radio |
| USB | microUSB 2.0, USB On-The-Go |
| Sensors | Accelerometer, gyro, proximity, compass |
| Battery | Non-removable Li-Ion 4230 mAh battery |
| Colors | Red, Dark Purple |
