Samsung Galaxy M31
2020Support ended
Price from
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Condition
Pros and Cons
Strengths and weaknesses at a glance.
Why choose
- Exceptional battery life
- High-quality Super AMOLED display
- 64MP quad camera
- Dedicated memory card slot
- 3.5mm jack and FM radio
- 25W fast charging
What to consider
- No 5G support
- Outdated processor
- Plastic body
- End of software support
- No water resistance
Detailed Technical Info
Hardware and features in detail.
- Screen size
- 6.5"
- Resolution
- 1080 x 2400
- Display type
- Super AMOLED
- Refresh rate
- 60Hz
- Max brightness
- 420 nits (typical)
- Screen protection
- Corning Gorilla Glass 3
Display
- Screen size
- 6.5"
- Resolution
- 1080 x 2400
- Display type
- Super AMOLED
- Refresh rate
- 60Hz
- Max brightness
- 420 nits (typical)
- Screen protection
- Corning Gorilla Glass 3
Performance
- Processor
- Exynos 9611 (10 nm)
- CPU cores
- Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
- GPU
- Mali-G72 MP3
- RAM
- 6GB
- AnTuTu score
- 235000 (v9)
Camera
- Main camera
- 64 MP, f/1.8, 26mm (wide), 1/1.73", 0.8µm, PDAF
- Ultra-wide
- 12 MP, f/2.2, 123˚
- Telephoto
- Not available
- Front camera
- 32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm
- Video
- 4K@30fps, 1080p@30fps, gyro-EIS
Battery
- Capacity
- 6000 mAh
- Charging speed
- 25W wired
- Wireless charging
- No
- Battery life
- Up to 2 days of typical use
Connectivity
- 5G
- No
- Wi-Fi
- Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
- Bluetooth
- 5.0, A2DP, LE
- NFC
- Yes
- USB
- USB Type-C 2.0, OTG
Body & Dimensions
- Dimensions
- 159.3 x 74.4 x 9.3 mm
- Weight
- 203 g
- Materials
- Plastic frame and back (Glasstic)
- Water resistance
- None
Condition Classes
All devices are fully tested and working.
Good (B)
from 140,7 €
There may be some micro-scratches on the screen. The casing has minor signs of use. Battery 85-90%.
Acceptable (C)
from 109,3 €
Clearly visible signs of use. Best price.
Model characteristics
Common issues that may occur with Samsung Galaxy M31.
Motherboard failure (Auto-restart)
CriticalSoldering issues with the Exynos 9611 chipset due to prolonged heating.
GPS signal fluctuation
ModerateSoftware bug or poor antenna contact.
Screen burn-in
MinorWear of the AMOLED panel at high brightness.
User interface slowness
ModerateNewer software is demanding for the older processor.
Repairs and Parts6/10 Independent rating
Battery Replacement
The battery is strongly glued and requires heating and caution.
Screen Replacement
Screen replacement requires the removal of almost all components.
Charging Port Repair
The charging port is located on a separate daughterboard, which is easy to replace.
Due to the model's popularity, spare parts are widely available.
Environmental Impact
Buying a used device saves valuable resources.
CO₂ Saved
52 kg CO2e
Water Saved
11500 liters
E-Waste Avoided
191 grams
Reused
94%
Recycled
6%
Methodology: Fraunhofer Institute / Refurbed.com calculation model (2025)
Who Is This For?
This device is especially well-suited for these users.
Battery Enthusiast
A user who is often on the go and doesn't want to worry about a charger.
- 6000mAh battery lasts 2 days
- Economical AMOLED display
- Wired reverse charging for other devices
Student or Elderly
Needs an affordable device for social media and video calls.
- Very affordable price on the secondary market
- Large and clear screen for reading
- Good front camera for video calls
Work Phone User
Needs a second device for calls and emails where battery life is critical.
- Dual SIM support
- Long standby time
- Memory card slot for storing large files
Network Compatibility
Supported frequencies and carriers.
FinlandYour country
Estonia
Latvia
Lithuania
The device does not support 5G networks. 4G connection is stable in all Baltic and Finnish networks.
Comparisons With Other Models
How this model differs from the competition.
The M32 offers a 90Hz display, but the M31s has a larger battery and better video capabilities (4K).
| Feature | Galaxy M31 | Galaxy M32 |
|---|---|---|
| Refresh rate | 60Hz | 90Hz |
| Battery capacity | 6000 mAh | 5000 mAh |
| Video recording | 4K | 1080p |
Samsung wins in display technology (AMOLED vs LCD), but Xiaomi offers a faster Snapdragon processor.
| Feature | Galaxy M31 | Redmi Note 9 Pro |
|---|---|---|
| Display type | Super AMOLED | IPS LCD |
| Processor | Exynos 9611 | Snapdragon 720G |
| Battery | 6000 mAh | 5020 mAh |
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