Samsung Galaxy M30 vs Samsung Galaxy M31s

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Display

Size

6.4 inches
6.5 inches

Resolution

2280 x 1080 pixels, 19.5:9 ratio,
395 PPI
2340 x 1080 pixels, 20:9 ratio,
396 PPI

Technology

Super AMOLED
Super AMOLED

Screen-to-body

86.66 %
86.62 %

Features

Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware

System chip

Samsung Exynos 7 Octa 7904
Samsung Exynos 9611

Processor

Octa-core, 1800 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 2300 MHz, Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm

GPU

Mali-G71 MP2
Mali-G72 MP3

RAM

6GB LPDDR4
6GB LPDDR4

Internal storage

128GB, available to use: 107.6 GB
128GB

Storage expansion

microSDXC up to 512 GB
microSDXC up to 512 GB

OS

Android (9.0 Pie, 8.1 Oreo), Samsung One UI
Android (10), Samsung One UI

Battery

Capacity

5000 mAh
6000 mAh

Type

Not user replaceable
Not user replaceable

Charging

Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging
Fast charging, Reverse charging

Max charge speed

 
Wired: 25.0W

Camera

Rear

Triple camera
Quad camera

Main camera

13 MP (PDAF)
64 MP (PDAF)

Specifications

Aperture size: F1.9; Focal length: 27 mm; Sensor size: 1/3.1"; Pixel size: 1.12 μm
Aperture size: F1.8; Pixel size: 0.8 μm

Second camera

5 MP (Ultra-wide)
12 MP (Ultra-wide)

Specifications

Aperture size: F2.2; Focal Length: 12 mm; Sensor size: 1/5"; Pixel size: 1.12 μm
Aperture size: F2.2

Third camera

5 MP (Depth information)
5 MP (Macro)

Specifications

Aperture size: F2.2
 

Fourth camera

 
5 MP (Depth information)

Video recording

1920x1080 (Full HD) (30 fps)
3840x2160 (4K UHD)

Features

Video calling, Video sharing
Hyperlapse

Front

16 MP
32 MP

Design

Dimensions

6.26 x 2.96 x 0.33 inches (159 x 75.1 x 8.5 mm)
6.27 x 2.96 x 0.35 inches (159.2 x 75.1 x 8.9 mm)

Weight

6.14 oz (174.0 g)
the average is 6.2 oz (178 g)
 

Materials

Back: Plastic
 

Biometrics

2D Face unlock, Fingerprint (touch)
Fingerprint (touch)

Features

Soft keys
 

Colors

Black, Blue
Mirage black, Mirage blue

Cellular

LTE (FDD)

Bands 1(2100), 3(1800), 5(850), 8(900), 20(800 DD)
 

LTE (TDD)

Bands 40(2300), 41(2600+)
 

UMTS

850, 900, 1900, 2100 MHz
 

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

Dual SIM

Yes
Yes

SIM type

Nano SIM
Nano SIM

VoLTE

Yes
 

Multimedia

Headphones

3.5mm jack
 

Speakers

Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features

Album art cover, Background playback, Dolby Atmos
 

Screen mirroring

Wireless screen share
Wireless screen share

Radio

FM
 

Additional microphone(s)

for Noise cancellation
 

Connectivity & Features

Bluetooth

5.0
5.0

Wi-Fi

802.11 a, b, g, n, ac, dual-band; Hotspot, Wi-Fi Direct
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot

USB

Type-C (reversible), USB 2.0
Type-C (reversible)

Features

Mass storage device, Charging
Charging, OTG

Location

GPS, A-GPS, Glonass, BeiDou
GPS, A-GPS, Cell ID, Wi-Fi positioning

Sensors

Accelerometer, Gyroscope, Compass
Accelerometer

Other

VoIP, Tethering, Computer sync, OTA sync
 

Phone features

Notifications

Haptic feedback, Music ringtones, Vibration
 

Other features

Voice dialing, Voice commands, Voice recording
 

Regulatory Approval

FCC approval

 
 

Date approved

Feb 13, 2019
 

FCC ID value: A3LSMM305F link
 

Measured SAR

 
 

Head

0.28 W/kg
 

Body

0.39 W/kg
 

Simultaneous Transmission

1.24 W/kg
 

Wireless Router

0.93 W/kg
 
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