| Manufacturer | OPPO |
| Model | A57 |
| Network Branding | Optus |
| Network Lock | Locked |
| Storage | 64 GB |
| RAM | 4 GB |
| Screen Size | 6.5 inches, 720 x 1600 pixels |
| SIM Card Type | Nano Sim |
| 2G Network | 2G/GSM, 850, 900, 1800, 1900 |
| 3G Network | 3G/HSDPA, 850, 900, 1900, 2100 |
| 4G Network | 4G/LTE, 2100 (B1), 1800 (B3), 850 (B5), 2600 (B7), 900 (B8), 800 (B20), 700 (B28), 2300 (B40) |
| Battery Capacity | 5000 mAh |
| Camera | 13 MP (Primary), 2.0 MP(Primary), 8 MP(Secondary) |
| CPU | Octa-core ( 4 x 1.8GHz & 4 x 2.0GHz) |
| Bluetooth | Yes, V5.0 |
| NFC | Yes |
| Card Slot | Yes. Up to 1TB MicroSD |
| Fingerprint Sensor | Yes |
| Operating System | Android 12 |
| Cable Type | USB Type-C |
| Dimensions | 164 x 75 x 8 mm |
| Weight | 187 g |
| Warranty | 12 Months(AU) |