Samsung Galaxy A31 vs Samsung Galaxy A55 5G Specs Comparison

Availability

Officially announced
Mar 24, 2020	Mar 11, 2024
Prices (MSRP)
€300	$489

Design

Dimensions
6.27 x 2.88 x 0.34 inches 159.3 x 73.1 x 8.6 mm	6.34 x 3.05 x 0.00 inches 161.1 x 77.4 8.2 mm
Weight
6.53 oz (185.0 g)	7.51 oz (213.0 g)
Materials
Back: Plastic	Back: Glass (Corning Gorilla Glass) Frame: Plastic
Resistance
	Water, Dust; IP67
Biometrics
Optical in-screen fingerprint	Optical in-screen fingerprint
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	Iceblue, Lilac, Navy, Lemon

Display

Size
6.4-inch, 84.88% screen-to-body	6.6-inch, 84.30% screen-to-body
Type
Super AMOLED, 60Hz	Super AMOLED, 120Hz, HDR, 550 nits
Resolution
2400x1080px, 20:9 ratio, 411 PPI	2400x1080px, 20:9 ratio, 399 PPI
Protection
	Corning Gorilla Glass Victus

Hardware

System chip
MediaTek Helio P65 MT6768 (12 nm)	Exynos 1480 (5 nm)
Processor
Octa-core 2x2.0GHz Cortex-A75 6x2.0G​Hz Cortex-A55	Octa-core 4x2.7GHz Cortex-A78 4x2.0G​Hz Cortex-A55
GPU
Mali-G52 MC2	Yes
Memory
4GB (LPDDR4)/64GB (eMMC 5.1) 6GB/128GB	8GB/128GB 8GB/256GB 12GB/256GB
Storage expansion
microSDXC up to 512 GB	microSDXC
OS
Android (10)	Android (14)

Battery

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

PhoneArena Battery Tests

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

Battery Life Estimate

6h 36min

Browsing

17h 7min

Video

8h 15min

Gaming

9h 39min

Learn more on our PhoneArena Battery Test Results page

Camera

Rear
Quad camera	Triple camera
Main camera
48 MP (PDAF) Aperture size: F2.0 Focal length: 26 mm Sensor size: 1/2" Pixel size: 0.8 μm	50 MP (OIS, Autofocus) Aperture size: F1.8 Sensor size: 1/1.56" Pixel size: 1.0 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 Sensor size: 1/3.06" Pixel size: 1.12 μm
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
Flash
LED	LED
Video recording
1080p (30 fps)	4K UHD (30 fps)
Front
20 MP Video capture: 1080p	32 MP Video capture: 4K UHD (30 fps)

PhoneArena Camera Tests

N/A

Overall

N/A

Photo

N/A

Video

132

Overall

140

Photo

123

Video

Learn more on our PhoneArena Camera Test Results page

Connectivity & Features

Bluetooth
5.0	5.3
WLAN
a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac	a,b,g,n,ac,Wi-Fi 6 Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax
USB
Type-C, USB 2.0	Type-C
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, QZSS, Cell ID, Wi-Fi positioning
Other
NFC	NFC

Multimedia

Headphones
3.5mm jack	No 3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Multiple speakers
Screen mirroring
Wireless screen share	Wireless screen share
Additional microphone(s)
Noise cancellation	Noise cancellation

Cellular

5G Bands
	n1, n3, n5, n7, n8, n20, n28, n38, n40, n41, n66, n77, n78, 5G Ready
4G (FDD) Bands
1, 2, 3, 4, 5, 7, 8, 20	1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 25, 26, 28, 32, 66
4G (TDD) Bands
38, 40, 41	38, 40, 41
3G Bands
1, 2, 5, 8	1, 2, 3, 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
Dual SIM
Yes	Yes
SIM type
Nano SIM	Nano SIM, eSIM

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

With 256GB internal storage

Memory	256GB

With 12GB RAM and 256GB internal storage

Memory	12GB/256GB

Links

Full specifications
Samsung Galaxy A31 Specs	Samsung Galaxy A55 5G Specs
PhoneArena Review
	Samsung Galaxy A55 5G Review