| Hardware and OS | Realme GT Flash 5G | |
| Operating System | Android v11 | |
| Processor | 2.9 GHz, Octa Core Processor | |
| Chipset | Qualcomm Snapdragon 888 | |
| Cores | 1x2.99 GHz Kryo 680 & 3x2.42 GHz Kryo 680 & 4x1.80 GHz Kryo 680 | |
| RAM | 8 GB | |
| Internal Memory | 258 GB | |
| Memory Card Slot | No | |
| Graphics | Adreno 660 | |
| Dual Sim | Yes | |
| Sim Size | Nano Nano SIM | |
| Sim Type | Dual Sim, GSM GSM | |
| Display | Realme GT Flash 5G | other phones |
| Screen Size | 6.7 inches, 1080 x 2460 pixels, 120 Hz | |
| Display Type | Color AMOLED E4 (16M) | |
| Pixel Density | ~401 PPI | |
| Touch Screen | Yes, with Multitouch | |
| Connectivity | Realme GT Flash 5G | other phones |
| 3G Network | Yes | |
| 4G Network | Yes | |
| 5G Network | Yes | |
| Bluetooth | Yes, v5.2 | |
| EDGE | Yes | |
| GPRS | Yes | |
| USB | Yes, USB-C | |
| USB Features | USB Tethering, USB on-the-go, USB Charging | |
| VoLTE | Yes, Dual Stand-By | |
| Wifi | Yes, with wifi-hotspot | |
| Multimedia | Realme GT Flash 5G | other phones |
| Email | Yes | |
| FM Radio | Yes | |
| Music | Yes | |
| Video | Yes | |
| Browser | Yes | |
| Java | No | |
| Battery | Realme GT Flash 5G | other phones |
| Battery capacity | 4500 mAh | |
| Type | Non-Removable Battery | |
| Fast Charging | 65W Fast Charging. | |
| Other | Realme GT Flash 5G | other phones |
| Fingerprint Sensor | Yes, In Display | |
| Face Unlock | Yes | |