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Google Pixel 3a vs Samsung Galaxy M31 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
9.0
Google Pixel 3a
Samsung Galaxy M31
Google Pixel 3a Samsung Galaxy M31
Released · May 07, 2019
Released · Mar 05, 2020
5.6-inch · 2220x1080px
6.4-inch · 2340x1080px
Single camera
Quad camera
4GB · 64GB
6GB · 64GB
3000 mAh
6000 mAh
Check prices

Design

Dimensions
5.96 x 2.76 x 0.32 inches
151.3 x 70.1 x 8.2 mm 		6.27 x 2.96 x 0.35 inches
159.2 x 75.1 x 8.9 mm
Weight
5.19 oz (147.0 g) 6.74 oz (191.0 g)
Materials
Back: Plastic Back: Plastic
Frame: Plastic
Biometrics
Fingerprint (touch) 2D Face unlock, Fingerprint (touch)
Keys
Right: Volume control, Lock/Unlock key Right: Volume control, Lock/Unlock key
Colors
Black, Purple, White Blue, Black, Red

Display

Size
5.6-inch 6.4-inch
Resolution
2220x1080px, 18.5:9 ratio, 444 PPI 2340x1080px, 19.5:9 ratio, 403 PPI
Technology
OLED Super AMOLED
Screen-to-body
73.93 % 83.97 %
Peak brightness
420 cd/m2 (nit)
Features
Scratch-resistant glass (Dragontrail), Ambient light sensor, Proximity sensor Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware

System chip
Qualcomm Snapdragon 670 SDM670 (10 nm) Exynos 9611 (10 nm)
Processor
Octa-core
2000 MHz
Kryo 360 		Octa-core
4x 2.3GHz Cortex-A73 + 4x 1.7GHz Cortex-A53
GPU
Adreno 615 Mali-G72 MP3
RAM
4GB (LPDDR4) 6GB (LPDDR4)
Internal storage
64GB (eMMC) 64GB (UFS 2.1), available to use: 49 GB
Storage expansion
not expandable microSDXC up to 512 GB
OS
Android (12, 11, 10, 9.0 Pie) Android (11, 10), Samsung One UI

Battery

Capacity
3000 mAh 6000 mAh
Type
Li - Polymer
Charging
USB Power Delivery Fast charging
Charge speed
Wired: 15.0W
PhoneArena Battery Tests
Battery Life Estimate
Untested
Browsing
9h 48min
Video
6h 30min
Gaming
Untested
Battery Life Estimate
Untested
Browsing
Untested
Video
Untested
Gaming
Untested
Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Single camera Quad camera
Main camera
12.2 MP (OIS, PDAF)
Aperture size: F1.8
Focal length: 28 mm
Sensor size: 1/2.55"
Pixel size: 1.4 μm 		64 MP (PDAF)
Aperture size: F1.8
Focal length: 26 mm
Sensor size: 1/1.7"
Pixel size: 0.8 μm
Second camera
8 MP (Ultra-wide)
Aperture size: F2.2
Focal Length: 12 mm
Sensor size: 1/4"
Pixel size: 1.12 μm
Third camera
5 MP (Macro)
Aperture size: F2.2
Focal Length: 25 mm
Sensor size: 1/5"
Pixel size: 1.12 μm
Fourth camera
5 MP (Depth information)
Aperture size: F2.2
Flash
Dual LED LED
Video recording
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
EIS 		3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD), 1280x720 (HD) (240 fps)
Hyperlapse, EIS
Front
8 MP, Video capture: 1920x1080 (Full HD) 32 MP (HDR, Slow-motion videos), Video capture: 1920x1080 (Full HD)

Connectivity & Features

Bluetooth
5.0 5.0
WLAN
802.11 a,b,g,n,ac,dual-band
MIMO, Wi-Fi Direct, Hotspot 		802.11 a,b,g,n,ac,dual-band
Wi-Fi Direct, Hotspot
USB
Type-C, USB 2.0 Type-C, USB 2.0
Hearing aid compatible
M3/T3
Location
GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope, Compass, Barometer Accelerometer, Gyroscope, Compass
Other
NFC, VoIP, Tethering, Computer sync, OTA sync NFC

Multimedia

Headphones
3.5mm jack 3.5mm jack
Speakers
Earpiece, Multiple speakers Earpiece, Loudspeaker
Features
aptX-HD Dolby Atmos
Screen mirroring
Wireless screen share Wireless screen share
Radio
FM
Additional microphone(s)
Noise cancellation Noise cancellation

Cellular

4G (FDD)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 32(1500 L-band), 66(AWS-3) Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 20(800 DD), 26(850+), 28(700 APT), 66(AWS-3)
4G (TDD)
Bands 38(2600), 40(2300), 41(2600+) Bands 38(2600), 40(2300), 41(2600+)
3G
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900) Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed
LTE-A Cat 11 (600/75 Mbit/s), 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
SIM type
Nano SIM Nano SIM
HD Voice
Yes
VoLTE
Yes

Regulatory Approval

FCC approval
Date approved: Feb 25, 2019
FCC ID value: A4RG020G 		Date approved: Feb 07, 2020
FCC ID value: A3LSMM315F
Measured SAR
Head: 1.15 W/kg
Body: 1.13 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 1.19 W/kg 		Head: 0.42 W/kg
Body: 0.41 W/kg
Simultaneous Transmission: 1.54 W/kg
Wireless Router: 0.74 W/kg

Buyers information

MSRP
$ 399 € 240
In The Box
18W USB-C power adapter, 1M USB-C to USB-C cable (USB 2.0), Quick Start Guide, Quick Switch Adapter, SIM tool 15W fast charger, Data cable, Ejection pin, User Manual

Availability

Officially announced
May 07, 2019 Feb 25, 2020

Alternative variants
4G (FDD) Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 17(700 b), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)
with 128GB storage
Internal storage 128GB
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