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Samsung Galaxy A31 vs Samsung Galaxy M51 Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

Comparison mode:
Specs Size
Differences only
Samsung Galaxy A31
Samsung Galaxy M51
Samsung Galaxy A31 Samsung Galaxy M51
Released · Apr 27, 2020
Released · Sep 11, 2020
6.4-inch · 2400x1080px
6.7-inch · 2340x1080px
Quad camera
Quad camera
4GB · 64GB
6GB · 128GB
5000 mAh
7000 mAh

Availability

Officially announced
Mar 24, 2020 Aug 31, 2020
Prices (MSRP)
€300 €360

Design

Dimensions
6.27 x 2.88 x 0.34 inches
159.3 x 73.1 x 8.6 mm 		6.45 x 3.00 x 0.37 inches
163.9 x 76.3 x 9.5 mm
Weight
6.53 oz / 185.0 g 7.51 oz / 213.0 g
Materials
Back: Plastic Back: Plastic
Frame: Plastic
Biometrics
Optical in-screen fingerprint Fingerprint (touch)
Keys
Right: Volume control, Lock/Unlock key Right: Volume control, Lock/Unlock key
Colors
Prism Crush black, Prism Crush blue, Prism Crush red, Prism Crush white Black, White

Display

Size
6.4-inch, 84.88% screen-to-body 6.7-inch, 88.27% screen-to-body
Type
Super AMOLED, 60Hz Super AMOLED Plus
Resolution
2400x1080px, 20:9 ratio, 411 PPI 2340x1080px, 20:9 ratio, 385 PPI
Protection
Corning Gorilla Glass 3

Hardware

System chip
MediaTek Helio P65 MT6768 (12 nm) Snapdragon 730 SM7150-AA (8 nm)
Processor
Octa-core
2x2.0GHz Cortex-A75
6x2.0G​Hz Cortex-A55 		Octa-core
2x2.2GHz Kryo 470
6x1.8GHz Kryo 470
GPU
Mali-G52 MC2 Adreno 618
Memory
4GB (LPDDR4)/64GB (eMMC 5.1)
6GB/128GB 		6GB (LPDDR4)/128GB
Storage expansion
microSDXC up to 512 GB microSDXC up to 512 GB
OS
Android (10) Android (10)

Battery

Type
5000 mAh, Li - Polymer 7000 mAh
Charging
Fast charging Fast charging
Reverse wired charging
Charge speed
Wired: 15.0W Wired: 25.0W

Camera

Rear
Quad camera Quad camera
Main camera
48 MP (PDAF)
Aperture size: F2.0
Focal length: 26 mm
Sensor size: 1/2"
Pixel size: 0.8 μm 		64 MP (PDAF)
Aperture size: F1.8
Focal length: 26 mm
Sensor size: 1/1.76"
Pixel size: 0.8 μm
Second camera
8 MP (Ultra-wide)
Aperture size: F2.2
Sensor size: 1/4"
Pixel size: 1.12 μm 		12 MP (Ultra-wide)
Aperture size: F2.2
Third camera
5 MP (Macro)
Aperture size: F2.4 		5 MP (Macro)
Aperture size: F2.4
Fourth camera
5 MP (Depth information)
Aperture size: F2.4 		5 MP (Depth information)
Aperture size: F2.4
Flash
LED LED
Video recording
1080p (30 fps) 4K UHD (30 fps), 1080p
Front
20 MP
Video capture: 1080p 		32 MP (HDR)
Video capture: 1080p

Connectivity & Features

Bluetooth
5.0 5.0
WLAN
a,b,g,n,ac,dual-band
Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac 		a,b,g,n,ac,dual-band
Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac
USB
Type-C, USB 2.0 Type-C, USB 2.0
Sensors
Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Other
NFC NFC

Multimedia

Headphones
3.5mm jack 3.5mm jack
Speakers
Earpiece, Loudspeaker Earpiece, Loudspeaker
Screen mirroring
Wireless screen share Wireless screen share
Radio
FM, Stereo, RDS
Additional microphone(s)
Noise cancellation Noise cancellation

Cellular

4G (FDD) Bands
1, 2, 3, 4, 5, 7, 8, 20 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 66
4G (TDD) Bands
38, 40, 41 38, 40, 41
3G Bands
1, 2, 5, 8 1, 2, 4, 5, 8
Data Speed
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
Dual SIM
Yes Yes
SIM type
Nano SIM Nano SIM

Regulatory Approval

FCC approval
Date approved: Mar 08, 2020
FCC ID value: A3LSMA315GL
Measured SAR
Head: 0.53 W/kg
Body: 0.56 W/kg
Simultaneous Transmission: 1.42 W/kg
Wireless Router: 0.65 W/kg
Phablet: 0.89 W/kg

Alternative variants

with 128GB storage
Memory 6GB/128GB
FCC OKs Cingular\'s purchase of AT&T Wireless