Samsung Galaxy M31s

Specifications
Samsung Galaxy M31s
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  • 6.5" 1080x2400 pixels
  • 64MP 2160p
  • 6/8GB RAM Exynos 9611
  • 6000mAh 25W
Released 2020, August 06 203g, 9.3mm thickness Android 10, up to Android 12, One UI 4.1 128GB storage, microSDXC
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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, 17, 20, 26, 28, 38, 40, 41, 66
Speed HSPA, LTE
Launch
Announced 2020, July 30. Released 2020, August 06
Status Discontinued
Body
Dimensions 159.3 x 74.4 x 9.3 mm (6.27 x 2.93 x 0.37 in)
Weight 203 g (7.16 oz)
SIM · Nano-SIM
· Nano-SIM + Nano-SIM
Display
Type Super AMOLED
Size 6.5 inches, 102.0 cm2 (~86.1% screen-to-body ratio)
Resolution 1080 x 2400 pixels, 20:9 ratio (~405 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 (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
GPU Mali-G72 MP3
Memory
Card slot microSDXC (dedicated slot)
Internal 128GB 6GB RAM, 128GB 8GB RAM
 UFS 2.1
Main Camera
Triple 64 MP, f/1.8, 26mm (wide), 1/1.73", 0.8µm, PDAF
12 MP, f/2.2, 123˚ (ultrawide)
5 MP (macro)
Auxiliary lens
Features LED flash, panorama, HDR
Video 4K@30fps, 1080p@30fps, gyro-EIS
Selfie Camera
Single 32 MP, f/2.2, 26mm (wide), 1/2.8", 0.8µm
Features HDR
Video 4K@30fps, 1080p@30fps
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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, OTG
Features
Sensors Fingerprint (side-mounted), accelerometer, gyro, compass
 Virtual proximity sensing
Battery
Type Li-Po 6000 mAh
Charging 25W wired
4.5W reverse wired
Misc
Colors Mirage Black, Mirage Blue
Models SM-M317F, SM-M317F/DS
SAR 1.38 W/kg (head)    
Price About 300 EUR

User opinions and reviews

  • Ram
  • 07 Dec 2025
  • uvI

I bought in 2022, very well in starting but after 1 year suddenly restart during operating mobile. I give to machanic he fix restart problem but after 1 year aprox problem started again, mobile restarted continuously. After very bad experience I sugg...

  • Filth
  • 02 Oct 2025
  • E5i

Have it since 2020. It is sooooooooo laggy and camera aint good

  • Karthik
  • 24 Sep 2025
  • D0d

Bought in 2020 working good still now very useful phone I ever had

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