🔑 Key Specs — Samsung Galaxy M31
- OS: Android 10, upgradable to Android 12, One UI 4.1
- Chipset: Exynos 9611 (10 nm)
- Display: 6.4 inches, 100.5 cm2 (~84.1% screen-to-body ratio)
- Display Type: Li-Po 6000 mAh
- Storage: 64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM
- Main Camera: 32 MP, f/2.0, 26mm (wide), 1/2.8″, 0.8µm
- Battery: Li-Po 6000 mAh / 15W wired
- Weight: 191 g (6.74 oz)
- NFC: Yes (market/region dependent)
- Colors: Ocean Blue, Space Black, Red
- Price: About 310 EUR
✅ Pros
- Li-Po 6000 mAh battery
- NFC support included
- 3.5mm headphone jack
- Dedicated microSD card slot
❌ Cons
- Slow charging speed
- No 5G support
Samsung Galaxy M31 – Full Specifications and Complete Review
📅 Released 2020, March 05
⚡ Quick Overview
💻 Operating System
Android 10, up to Android 12, One UI 4.1
📏 Dimensions & Weight
191g, 8.9mm thickness
💾 Memory & Storage
64GB/128GB storage, microSDXC
🔗 Services Samsung Galaxy M31
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🔧
Problem Solutions
Hardware Fix
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📥
Download Firmware
Rom & Flash
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🔓
Network Unlock
Unlock & FRP
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⚙️
Root Files
Root Files
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📑 Review Contents
Network
| Technology | GSM / HSPA / LTE |
| 2G bands | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G bands | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 38, 40, 41, 66 |
| Speed | HSPA, LTE |
Launch
| Announced | 2020, February 25. Released 2020, March 05 |
| Status | Discontinued |
Body
| Dimensions | 159.2 x 75.1 x 8.9 mm (6.27 x 2.96 x 0.35 in) |
| Weight | 191 g (6.74 oz) |
| Build | Glass front (Gorilla Glass 3), plastic back, plastic frame |
| SIM | Nano-SIM + Nano-SIM |
Display
| Type | Super AMOLED, 420 nits (peak) |
| Size | 6.4 inches, 100.5 cm2 (~84.1% screen-to-body ratio) |
| Resolution | 1080 x 2340 pixels, 19.5:9 ratio (~403 ppi density) |
| Protection | Corning Gorilla Glass 3 |
Platform
| OS | Android 10, upgradable to Android 12, One UI 4.1 |
| Chipset | Exynos 9611 (10 nm) |
| CPU | Octa-core (4×2.3 GHz Cortex-A73 & 4×1.7 GHz Cortex-A53) |
| GPU | Mali-G72 MP3 |
Memory
| Card slot | microSDXC (dedicated slot) |
| Internal | 64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM |
| Other | UFS 2.1 |
Main Camera
| Triple | 64 MP, f/1.8, 26mm (wide), 1/1.72″, 0.8µm, PDAF 8 MP, f/2.2, 123˚ (ultrawide), 1/4.0″, 1.12µm 5 MP (macro) Auxiliary lens |
| Features | LED flash, panorama, HDR |
| Video | 4K@30fps, 1080p@30fps, gyro-EIS |
Selfie camera
| Single | 32 MP, f/2.0, 26mm (wide), 1/2.8″, 0.8µm |
| Features | HDR |
| Video | 4K@30fps, 1080p@30fps |
Sound
| Loudspeaker | Yes |
| 3.5mm jack | Yes |
Comms
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct |
| Bluetooth | 5.0, A2DP, LE |
| Positioning | GPS, GLONASS, GALILEO, BDS |
| NFC | Yes (market/region dependent) |
| Radio | FM radio, RDS, recording |
| USB | USB Type-C 2.0 |
Features
| Sensors | Fingerprint (rear-mounted), accelerometer, gyro, compass |
| Other | Virtual proximity sensing |
Battery
| Type | Li-Po 6000 mAh |
| Charging | 15W wired |
Misc
| Colors | Ocean Blue, Space Black, Red |
| Models | SM-M315F, SM-M315F/DS, SM-M315F/DSN |
| SAR | 0.52 W/kg (head) 0.69 W/kg (body) |
| SAR EU | 0.48 W/kg (head) 1.13 W/kg (body) |
| Price | About 310 EUR |
❓ Frequently Asked Questions — Samsung Galaxy M31
Q1: What is the operating system of Samsung Galaxy M31?
Android 10, upgradable to Android 12, One UI 4.1
Q2: What is the battery capacity of Samsung Galaxy M31?
Li-Po 6000 mAh with 15W wired charging
Q3: What are the camera specs of Samsung Galaxy M31?
32 MP, f/2.0, 26mm (wide), 1/2.8″, 0.8µm
Q4: What is the storage capacity of Samsung Galaxy M31?
64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM
Q5: Does Samsung Galaxy M31 support NFC?
Yes (market/region dependent)
Q6: What are the dimensions and weight of Samsung Galaxy M31?
159.2 x 75.1 x 8.9 mm (6.27 x 2.96 x 0.35 in) – Weight: 191 g (6.74 oz)
Q7: What chipset does Samsung Galaxy M31 use?
Exynos 9611 (10 nm)
Q8: What is the price of Samsung Galaxy M31?
About 310 EUR
