| Hardware and OS | Motorola Moto G31 | |
| Operating system | Android 11 | |
| Processor | Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55) | |
| Chipset | MediaTek Helio G85 (12nm) | |
| GPU | Mali-G52 MC2 | |
| Internal memory | 64GB 4GB RAM, 128GB 4GB RAM | |
| External memory | microSDXC (uses shared SIM slot) | |
| Display | Motorola Moto G31 | other phones |
| Type | AMOLED | |
| Size | 6.4 inches, 98.9 cm2(~82.7% screen-to-body ratio) | |
| Resolution | 1080 x 2400 pixels, 20:9 ratio | |
| Colors | Mineral Grey, Baby Blue | |
| Design | Motorola Moto G31 | other phones |
| Body | Water-repellent design | |
| SIM | Single SIM (Nano-SIM) or Hybrid Dual SIM (Nano-SIM, dual stand-by) | |
| Dimensions | 161.9 x 73.9 x 8.6 mm (6.37 x 2.91 x 0.34 in) | |
| Weight | 181 g (6.38 oz) | |
| Connectivity | Motorola Moto G31 | other phones |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) | |
| 3G Network | HSDPA 800 / 850 / 900 / 1900 / 2100 | |
| 4G Network | 1, 2, 3, 5, 7, 8, 18, 19, 20, 26, 28, 38, 40, 41 | |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot | |
| Bluetooth | 5.0, A2DP, LE | |
| GPS | Yes, with A-GPS, GLONASS, GALILEO | |
| NFC | Yes | |
| USB | USB Type-C 2.0 | |
| Speed | HSPA 42.2/5.76 Mbps, LTE Cat7 300/150 Mbps | |
| Technology | GSM / HSPA / LTE | |
| Main Camera | Motorola Moto G31 | other phones |
| Camera | 50 MP, f/1.8, (wide), 0.64??m, PDAF
8 MP, f/2.2, 118?? (ultrawide), 1/4.0", 1.12??m
2 MP, f/2.4, (macro) | |
| Features | LED flash, HDR, panorama | |
| Video | 1080p@30fps | |
| Selfie camera | Motorola Moto G31 | other phones |
| Camera | 13 MP, f/2.2, (wide), 1.12??m | |
| Video | 1080p@30fps | |
| Multimedia | Motorola Moto G31 | other phones |
| Radio | FM radio | |
| 3.5 mm Jack | Yes | |
| Loudspeaker | Yes | |
| Features | Motorola Moto G31 | other phones |
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass | |
| Battery | Motorola Moto G31 | other phones |
| Type | Li-Po 5000 mAh, non-removable | |
| Charging | Charging 10W | |
