Mobile Phones
Samsung Galaxy M31
Brand: Samsung · Model: Galaxy M31 · Released: 2020-03-05
Updated
Specifications
Display
| Display Type | Super AMOLED |
|---|---|
| Screen Size | 6.4 inches, 100.5 cm2 |
| Resolution | 1080x2340 px |
| Aspect Ratio | 19.5:9 |
| Pixel Density | 403 ppi |
| Screen to Body Ratio | 83.92 % |
| Screen Protection | Corning Gorilla Glass 3 |
| Bezel-less Display | Yes with notch |
| Touch Screen | Yes, Capacitive Touchscreen, Multi-touch |
| Brightness | 420 nits (peak) |
| Refresh Rate | 60 Hz |
| Notch | Waterdrop |
Performance
| Operating System | Android |
|---|---|
| OS Version | 10, upgradable to Android 12 |
| User Interface | One UI 4.1 |
| Chipset | Exynos 9611 |
| CPU | Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53) |
| CPU Cores | 8 Cores |
| Architecture | 64 bit |
| Fabrication | 10 nm |
| GPU | Mali-G72 MP3 |
Memory
| Internal Storage | 128GB |
|---|---|
| Storage Type | UFS 2.1 |
| USB OTG | Yes |
| RAM | 8GB |
| RAM Type | LPDDR4X |
Camera
| Primary Camera Setup | Quad |
|---|---|
| Primary Resolution | 64 MP f/1.8, Primary Camera, 8 MP f/2.2, Ultra-Wide Angle Camera, 5 MP f/2.4, Macro Camera, 5 MP f/2.2, Depth Camera |
| Primary Sensor | S5KGW1, ISOCELL Plus |
| Primary Autofocus | Phase Detection autofocus |
| Primary Flash | LED Flash |
| Primary Image Resolution | 9000 x 7000 Pixels |
| Primary Settings | Exposure compensation, ISO control |
| Primary Zoom | 8 x Digital Zoom |
| Primary Shooting Modes | Continuous Shooting |
| Primary Aperture | f/1.8 |
| Primary Camera Features | 8 x Digital Zoom, Auto Flash, Face detection, Touch to focus |
| Primary Video Recording | 3840x2160, 1920x1080, 1280x720 |
| Primary Video FPS | 240 fps |
| Selfie Camera Setup | Single |
| Selfie Resolution | 32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm |
| Selfie Sensor | Exmor RS |
| Selfie Camera Features | HDR |
| Selfie Video Recording | 1920x1080 |
| Selfie Video FPS | 30 fps |
| Selfie Aperture | f/2.0 |
Battery
| Battery type | Li-Poly (Lithium Polymer) |
|---|---|
| Capacity | 6000 mAh |
| Quick Charging | 15W wired |
| Placement | Non-removable |
| USB Type-C | USB Type-C 2.0 |
Network
| Network | 2G, 3G, 4G |
|---|---|
| SIM Slot | Dual SIM, GSM+GSM |
| SIM Size | SIM1: Nano, SIM2: Nano |
| EDGE | Available |
| GPRS | Available |
| VoLTE | Yes |
| Speed | HSPA, LTE |
| SAR Value | Head: 0.383 W/kg |
| WLAN | Wi-Fi 5 (802.11 b/g/n/ac) 5GHz |
| Bluetooth | 5.0, A2DP, LE |
| GPS | GPS, GLONASS, GALILEO, BDS |
| Wi-fi Hotspot | Wi-Fi Direct, Mobile Hotspot |
| NFC | Yes (market/region dependent) |
| USB | Mass storage device, USB charging |
Build
| Height | 159.2 mm |
|---|---|
| Width | 75.1 mm |
| Thickness | 8.9 mm |
| Weight | 191 grams |
| Build | Glass front (Gorilla Glass 3), plastic back, plastic frame |
| Colors | Ocean Blue, Space Black, Red |
Other
| Device Type | Smartphone |
|---|---|
| Light Sensor | Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope |
| Fingerprint Sensor | Yes |
| Finger Sensor Position | Rear-mounted |
| Face Unlock | Yes |
| Made By | Korea |
| Features | Accelerometer, gyro, compass |
Audio
| FM Radio | Yes |
|---|---|
| Loudspeaker | Yes |
| Alert Types | Vibration, MP3, WAV ringtones |
| Audio Jack | 3.5 mm |
| Audio Features | Dolby Atmos |
| Video | 4K@30fps, 1080p@30fps, gyro-EIS |
| Document Reader | Yes |
Colours: Ocean Blue, Space Black, Red
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Prices seen in Bangladesh
| Seller | Price | Seen on |
|---|---|---|
| Official price (MobileDokan) · 6GB/64GB | ৳19,999 | October 27, 2026 |
| Official price (MobileDokan) · 8GB/128GB | ৳23,999 | October 27, 2026 |
Prices as published by each seller on the date shown. They change often; confirm with the seller before you buy.
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