| Hardware and OS | Oppo A9x | |
| Operating system | Android 9.0 (Pie); ColorOS 6 | |
| Processor | Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53) | |
| Chipset | Mediatek MT6771V Helio P70 (12nm) | |
| GPU | Mali-G72 MP3 | |
| Internal memory | 128 GB, 6 GB RAM | |
| External memory | microSD, up to 256 GB | |
| Display | Oppo A9x | other phones |
| Type | LTPS IPS LCD | |
| Size | 6.53" inc | |
| Resolution | 1080 x 2340 px | |
| Touchscreen | capacitive touchscreen | |
| Screen-to-Body Ratio | 84.9% | |
| Display area | 104.7 cm2 | |
| Display aspect ratio | 19.5:9 (height:width) | |
| Pixel Density | 395 PPI | |
| Colors | 16M | |
| Connectivity | Oppo A9x | other phones |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 850 / 900 / 1700(AWS) / 1800 / 2100 | |
| 4G Network | LTE band 1(2100), 3(1800), 4(1700/2100), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) | |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, hotspot | |
| Network | GSM / CDMA / HSPA / LTE | |
| SIM card | Dual SIM (Nano-SIM, dual stand-by) | |
| Bluetooth | 4.2, A2DP, LE | |
| Edge | Yes | |
| GPRS | Yes | |
| GPS | Yes, with A-GPS, GLONASS, BDS | |
| NFC | Yes | |
| Speed | HSPA, LTE-A | |
| USB | microUSB 2.0, USB On-The-Go | |
| Camera | Oppo A9x | other phones |
| Main camera | 48 MP, Dual | |
| Specs | 48 MP, f/1.7, (wide), 1/2', 0.8µm, PDAF -2 MP, f/2.4, depth sensor | |
| Features | Dual-LED dual-tone flash, panorama, HDR | |
| Video | 1080p@30fps | |
| Selfie camera | 16 MP, Single | |
| Multimedia | Oppo A9x | other phones |
| 3.5 mm Jack | Yes | |
| Radio | FM radio | |
| Design | Oppo A9x | other phones |
| Colors | Meteorite Black, Ice Jade White | |
| Dimensions | 162 x 76.1 x 8.3 mm | |
| Weight | 190 g | |
| Battery | Oppo A9x | other phones |
| Battery capacity | 4020 mAh, Non-removable Li-Po | |
| Other | Oppo A9x | other phones |
| Release date | 2019, May | |
| Sensors | Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass | |