| Hardware and OS | Oppo A73 5G | |
| Operating system | Android 10, ColorOS 7.2 | |
| Processor | Octa-core (2x2.0 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) | |
| Chipset | MediaTek MT6853V Dimensity 720 5G (7 nm) | |
| Internal memory | 128GB 8GB RAM | |
| External memory | microSDXC (dedicated slot) | |
| GPU | Mali-G57 MC3 | |
| Display | Oppo A73 5G | other phones |
| Size | 6.5 inches, 102.0 cm2 | |
| Resolution | 1080 x 2400 pixels, 20:9 ratio | |
| Type | IPS LCD, 90Hz, 480 nits (typ) | |
| Main Camera | Oppo A73 5G | other phones |
| Camera | 16 MP, f/2.2, 26mm (wide), 1/3.06", PDAF
8 MP, f/2.2, 119?? (ultrawide), 1/4.0", 1.12µm
2 MP, f/2.4, (depth) | |
| Features | LED flash, HDR, panorama | |
| Video | 1080p@30fps, gyro-EIS | |
| Selfie camera | Oppo A73 5G | other phones |
| Camera | 8 MP, f/2.0, 26mm (wide) | |
| Features | HDR | |
| Video | 1080p@30fps | |
| Connectivity | Oppo A73 5G | other phones |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 | |
| 4G Network | 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 38, 39, 40, 41, 66 | |
| 5G Network | 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78 SA/NSA | |
| Bluetooth | 5.1, A2DP, aptX HD, LE | |
| GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS | |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A | |
| Technology | GSM / HSPA / LTE / 5G | |
| USB | USB Type-C 2.0, USB On-The-Go | |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | |
| Multimedia | Oppo A73 5G | other phones |
| 3.5 mm Jack | Yes | |
| Loudspeaker | Yes | |
| Radio | Unspecified | |
| Battery | Oppo A73 5G | other phones |
| Type | Li-Po 4040 mAh, non-removable | |
| Charging | Fast charging 18W | |
| Design | Oppo A73 5G | other phones |
| Colors | Navy Black, Neon | |
| Dimensions | 162.2 x 75 x 7.9 mm (6.39 x 2.95 x 0.31 in) | |
| Weight | 177 g (6.24 oz) | |
| SIM | Dual SIM (Nano-SIM, dual stand-by) | |
| Features | Oppo A73 5G | other phones |
| Sensors | Fingerprint (side-mounted), accelerometer, proximity | |
