| Hardware and OS | Oppo X 2021 | |
| Operating system | Android 10, ColorOS 7.2 | |
| Processor | Octa-core (2x2.0 GHz Cortex-A76, 6x2.0 GHz Cortex-A55) | |
| GPU | Mali-G57 MC3 | |
| RAM | 6 GB | |
| Internal Storage | 128 GB | |
| Memory Card Slot | No | |
| User Interface | Yes | |
| Display | Oppo X 2021 | other phones |
| Type | OLED | |
| Size | 6.7 inches to 7.4 inches | |
| Resolution | 1080 x 2400 pixels | |
| Colors | 16M | |
| Pixel Density | ~405 ppi density | |
| Touchscreen | Capacitive touchscreen | |
| Protection | Corning Gorilla Glass 3 | |
| Connectivity | Oppo X 2021 | other phones |
| 4G Network | 1, 2, 3, 4, 5, 7, 8, 34, 38, 39, 40, 41 | |
| 5G Network | 1, 41, 77, 78 SA/NSA | |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | |
| GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS | |
| NFC | No | |
| USB | USB Type-C 2.0, USB On-The-Go | |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A (CA), 5G 2.3 Gbps DL | |
| SIM | Nano SIM | |
| Dual SIM | Dual SIM (Nano-SIM, dual stand-by) | |
| Wireless Charging | No | |
| Camera | Oppo X 2021 | other phones |
| Main camera | 48 MP (wide), 8 MP (ultrawide), 2 MP (macro), 2 MP (depth) | |
| Features | LED flash, HDR, panorama | |
| Image | 2160p | |
| Selfie camera | 16 MP (wide) | |
| Multimedia | Oppo X 2021 | other phones |
| Loudspeaker | Yes | |
| Handsfree | Yes | |
| Radio | No | |
| Video Playback | Yes | |
| Video Out | Yes | |
| Ring Tones | Yes | |
| 3.5 mm Jack | Yes | |
| Design | Oppo X 2021 | other phones |
| Dimensions | 162.2 x 75.1 x 9.1 mm | |
| Waterproof | No | |
| Weight | 194 Grams | |
| Battery | Oppo X 2021 | other phones |
| Capacity | Li-Po 5000 mAh, Fast charging 30W, 100% in 65 min (advertised), Reverse charging | |
| Placement | Non-Removable | |
| Other | Oppo X 2021 | other phones |
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, | |
