| Hardware and OS | Realme U2 | |
| Operating System | Android v10 | |
| Processor | 2 GHz, Octa Core Processor | |
| Chipset | MediaTek Helio P70 | |
| Cores | 2.1 GHz, Quad core, Cortex A73 2 GHz, Quad core, Cortex A53 | |
| RAM | 4 GB | |
| Internal Memory | 64 GB | |
| Memory Card Slot | Yes, upto 256 GB | |
| Graphics | Mali-G72 MP3 | |
| Dual Sim | Yes | |
| Sim Size | Nano Nano SIM | |
| Sim Type | Dual Sim, GSM GSM | |
| Display | Realme U2 | other phones |
| Screen Size | 6.4 inches, 1080 x 2340 pixels | |
| Display Type | Color IPS LCD screen (16M) | |
| Pixel Density | ~403 PPI | |
| Touch Screen | Yes, with Multitouch | |
| Display aspect ratio | 19.5:9 | |
| Connectivity | Realme U2 | other phones |
| 3G Network | Yes | |
| 4G Network | Yes | |
| Bluetooth | Yes | |
| EDGE | Yes | |
| GPRS | Yes | |
| USB | Yes, USB-C | |
| USB Features | USB Charging | |
| VoLTE | Yes, Dual Stand-By | |
| Wifi | Yes, with wifi-hotspot | |
| Multimedia | Realme U2 | other phones |
| Email | Yes | |
| FM Radio | Yes | |
| Music | Yes | |
| Video | Yes | |
| Browser | Yes, supports HTML5 | |
| Java | No | |
| Battery | Realme U2 | other phones |
| Battery capacity | 4000 mAh, Li-ion Battery | |
| Type | Non-Removable Battery | |
| Fast Charging | Yes | |
| Other | Realme U2 | other phones |
| Sensors | Light sensor, Proximity sensor, Accelerometer | |
| Fingerprint Sensor | Yes, Rear | |
| Face Unlock | Yes | |
| Features | Digital Zoom, Auto Flash, Face detection, Touch to focus | |
