| Hardware and OS | Realme 3 MT6771 | |
| Operating system | ColorOS 6.0 (Android 9.0 Pie) | |
| Processor | 4x 2.0 GHz ARM Cortex-A73, 4x 2.0 GHz ARM Cortex-A53, Cores: 8 | |
| GPU | ARM Mali-G72 MP3, 800 MHz, Cores: 3 | |
| RAM | 3 GB | |
| Internal Storage | 32 GB | |
| Memory Card Slot | microSD, microSDHC, microSDXC | |
| User Interface | Yes | |
| Display | Realme 3 MT6771 | other phones |
| Type | IPS | |
| Size | 6.22 inches | |
| Resolution | 720 x 1520 pixels | |
| Colors | 16M | |
| Pixel Density | 270 ppi | |
| Touchscreen | Yes | |
| Protection | Corning Gorilla Glass | |
| Features | Corning Gorilla Glass 3, 2.5D curved glass screen, 1500:1 contrast ratio, 450 cd/m2, LTPS (Low Temperature PolySilicon) | |
| Connectivity | Realme 3 MT6771 | other phones |
| 4G Network | Yes | |
| Wi-Fi | a, b, g, n, n 5GHz, ac, Dual band, Wi-Fi Hotspot, Wi-Fi Direct | |
| GPS | GPS, A-GPS, GLONASS | |
| NFC | No | |
| USB | 2.0, Micro USB | |
| Speed | LTE 850 MHz LTE 900 MHz LTE 1800 MHz LTE 2100 MHz LTE-TDD 2300 MHz (B40) LTE-TDD 2500 MHz (B41) LTE-TDD 2600 MHz (B38) | |
| SIM | Nano SIM | |
| Dual SIM | Nano-SIM | |
| Wireless Charging | No | |
| Camera | Realme 3 MT6771 | other phones |
| Main camera | 12.98 MP (megapixels) | |
| Features | Dual LED | |
| Image | 4160 x 3120 pixels | |
| Selfie camera | 12.98 MP (megapixels) | |
| Multimedia | Realme 3 MT6771 | other phones |
| Loudspeaker | Yes | |
| Handsfree | Yes | |
| Radio | Yes | |
| Video Playback | Yes | |
| Video Out | Yes | |
| Ring Tones | Yes | |
| 3.5 mm Jack | yes | |
| Design | Realme 3 MT6771 | other phones |
| Dimensions | 75.6 x 156.1 x 8.3 mm | |
| Waterproof | No | |
| Weight | 175 Grams (With Battery) | |
| Battery | Realme 3 MT6771 | other phones |
| Capacity | 4230 mAh, Li-Polymer | |
| Other | Realme 3 MT6771 | other phones |
| Sensors | Proximity, Light, Accelerometer, Compass, Fingerprint | |
