Samsung Galaxy A31 smartphone was launched in March 2020 with 48 MP quad rear cameras and 20 MP secondary camera. It offers a 6.4 Inches Full HD+ Super AMOLED Display with 159.30 x 73.10 x 8.60 mm dimensions and weighs 185 grams. It is powered by Android 10 and MediaTek Helio P65 Octa-Core Processor. It is packed with Single SIM/Dual SIM support, Li-Po 5000 mAh Non-Removable Battery, 64/128 GB in-built memory, and a RAM of 4/6 GB. Some of the features like Bluetooth, in-display fingerprint, GPS, A-GPS, Beidou, GLONASS, Galileo, Wi-Fi, NFC, Micro USB, FM/Radio, and Type-C connector.

Features and Specifications 
 | ||
|---|---|---|
| General | 2G Network | GSM 850/900/1800/1900 MHz | 
| 3G Network | HSDPA 850/900/1900/2100 MHz | |
| 4G Network | LTE | |
| SIM | Single SIM/Dual SIM (Nano-SIM) | |
| Dimensions | 159.30 x 73.10 x 8.60 mm | |
| Weight | 185 g | |
| Colors | Prism Crush White, Prism Crush Black, Prism Crush Red, Prism Crush Blue | |
| Display | Type | 
FHD+ Super AMOLED Touchscreen (16M Colors) 
 | 
| Screen Size | 6.4 Inches | |
| Resolution | 1080 x 2400 Pixels (411 ppi density) | |
| Other | 
Infinity-U Display 
Waterdrop-style Notch Display  | |
| Sound | Loudspeaker | Yes | 
| Camera | Primary | Quad Cam: 48 MP + 8 MP + 5 MP + 5 MP with LED flash and AF | 
| Secondary | 20 MP | |
| Memory | SD Card Slot | Yes, Expandable up to 512 GB (dedicated slot) | 
| Internal | 64/128 GB | |
| RAM | 4/6 GB | |
| Data/Connectivity | GPRS | Yes | 
| Speed | 
HSPA 42.2/5.76 Mbps, LTE 
 | |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac with dual-band, Wi-Fi Direct, and Hotspot | |
| Bluetooth | Yes 5.0 v, A2DP | |
| NFC | Yes | |
| Headphones | Yes, 3.5mm Audio Jack | |
| USB | Micro USB 2.0, Type-C 1.0 Connector | |
| Radio/FM | - | |
| GPS | Yes A-GPS, GLONASS, Galileo, Beidou | |
| Software/Hardware | OS | Android 10 with One UI 2.0 | 
| CPU/Chipset | MediaTek MT6768 Octa-Core Processor (2x2.0 GHz & 6x1.7 GHz)  | |
| GPU | Adreno | |
| Sensors | Proximity, Accelerometer, Gyro, Compass, and In-display Fingerprint | |
| Battery | Capacity | Li-Po 5000 mAh Non-Removable Battery | 
| Others | 15W Fast Battery Charging | |
