Status
Discontinued
Quick Summary
Striking a masterclass balance between cost and capability, the Samsung Galaxy M31 is a versatile mid-range smartphone designed for the modern user. It runs on Android 10, upgradable to Android 12, One UI 4.1, which pairs beautifully with its 6.4 inches AMOLED display to ensure fluid, vibrant interactions. It effortlessly handles daily applications and moderate tasks, drawing power from a 6000 mAh battery.
Hardware Score Analysis
A detailed breakdown of how this device scores based on automated hardware specification analysis.
Performance
61%
Display
79%
Camera
86%
Battery
65%
Memory
88%
Launch
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
Main Camera
Quad
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
Video
4K@30fps, 1080p@30fps, gyro-EIS
Features
LED flash, panorama, HDR
Selfie Camera
Single
32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm
Video
4K@30fps, 1080p@30fps
Features
HDR
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
Colors
Ocean Blue, Space Black, Red
Connectivity
Technology
GSM / HSPA / LTE
SIM
Nano-SIM + Nano-SIM
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 Storage
64GB 6GB RAM, 128GB 6GB RAM, 128GB 8GB RAM
Storage Type
UFS 2.1
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
Miscellaneous
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)
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