| Hardware and OS Realme X3 5G |
| Operating system: | Android 10.0, Realme UI |
| Processor: | Octa-core (1x2.4 GHz Kryo 475 Prime, 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver) |
| GPU: | Adreno 620 |
| RAM: | 6 GB, 8 GB, 12 GB |
| Internal Storage: | 64 GB, 128 GB, 256 GB |
| Memory Card Slot: | microSDXC (dedicated slot) |
| User Interface: | Yes |
| Display Realme X3 5G |
| Type: | IPS LCD |
| Size: | 6.57 inches |
| Resolution: | 1080 x 2400 pixels |
| Colors: | 16M |
| Pixel Density: | ~401 ppi density |
| Touchscreen: | Capacitive touchscreen |
| Connectivity Realme X3 5G |
| 4G Network: | LTE |
| 5G Network: | 5G SA/NSA |
| Wi-Fi: | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| GPS: | Yes, with dual-band A-GPS, GLONASS, BDS, GALILEO |
| NFC: | No |
| USB: | 2.0, Type-C 1.0 reversible connector |
| Speed: | HSPA 42.2/5.76 Mbps, LTE-A, 5G (1.9 Gbps DL) |
| SIM: | Nano SIM |
| Dual SIM: | Dual SIM (Nano-SIM, dual stand-by) |
| Wireless Charging: | No |
| Camera Realme X3 5G |
| 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 Realme X3 5G |
| Loudspeaker: | Yes |
| Handsfree: | Yes |
| Radio: | Yes |
| Video Playback: | Yes |
| Video Out: | Yes |
| Ring Tones: | Yes |
| 3.5 mm Jack: | Yes |
| Design Realme X3 5G |
| Waterproof: | No |
| Battery Realme X3 5G |
| Capacity: | Li-Po 4100 mAh battery, Fast charging |
| Placement: | Non-Removable |
| Other Realme X3 5G |
| Sensors: | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, |
