Samsung Galaxy M21 vs Samsung Galaxy A55 5G 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.

	5.8
Samsung Galaxy M21	Samsung Galaxy A55 5G
Released · Mar 23, 2020	Released · Mar 20, 2024
6.4-inch	6.6-inch
Triple camera	Triple camera
4GB · 64GB	8GB · 128GB
6000 mAh	5000 mAh
	Check prices

Design

Dimensions
6.26 x 2.96 x 0.35 inches 159.0 x 75.1 x 8.9 mm	6.34 x 3.05 x 0.00 inches 161.1 x 77.4 8.2 mm
Weight
6.63 oz (188.0 g)	7.51 oz (213.0 g)
Materials
Back: Plastic Frame: Plastic	Back: Glass (Corning Gorilla Glass) Frame: Plastic
Resistance
	Water, Dust; IP67
Biometrics
2D Face unlock, Fingerprint (touch)	Optical in-screen fingerprint
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Midnight blue, Raven black	Iceblue, Lilac, Navy, Lemon

Display

Size
6.4-inch	6.6-inch
Resolution
2340x1080px, 19.5:9 ratio, 403 PPI	2400x1080px, 20:9 ratio, 399 PPI
Technology
Super AMOLED	Super AMOLED
Refresh rate
	120Hz
Screen-to-body
84.11 %	84.30 %
Peak brightness
420 cd/m2 (nit)	550 cd/m2 (nit)
Features
Scratch-resistant glass (Corning Gorilla Glass 3), Proximity sensor	HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor

Hardware

System chip
Exynos 9611 (10 nm)	Exynos 1480 (5 nm)
Processor
Octa-core 4x 2.3GHz Cortex-A73 + 4x 1.7GHz Cortex-A53	Octa-core 4x 2.7GHz Cortex-A78 + 4x 2.0GHz Cortex-A55
GPU
Mali-G72 MP3	Yes
RAM
4GB (LPDDR4)	8GB
Internal storage
64GB, available to use: 49 GB	128GB
Storage expansion
microSDXC up to 512 GB	microSDXC
OS
Android (11, 10), Samsung One UI	Android (14)

Battery

Capacity
6000 mAh	5000 mAh
Type
Li - Polymer	Li - Ion
Charging
Fast charging	Fast charging
Charge speed
	Wired: 25.0W

Battery Life Estimate

Untested

Browsing

Untested

Video

Untested

Gaming

Untested

Battery Life Estimate

6h 36min

Browsing

17h 7min

Video

8h 15min

Gaming

9h 39min

Camera

Rear
Triple 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 Focal Length: 12 mm 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 (Depth information) Aperture size: F2.2	5 MP (Macro) Aperture size: F2.4
Flash
LED	LED
Video recording
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD), 1280x720 (HD) (240 fps) EIS	3840x2160 (4K UHD) (30 fps)
Front
20 MP (HDR), Video capture: 1920x1080 (Full HD)	32 MP, Video capture: 3840x2160 (4K UHD) (30 fps)

N/A

Overall

N/A

Photo

N/A

Video

132

Overall

140

Photo

123

Video

Connectivity & Features

Bluetooth
5.0	5.3
WLAN
802.11 a,b,g,n,ac,dual-band Wi-Fi Direct, Hotspot	802.11 a,b,g,n,ac,ax(Wi-Fi 6) Wi-Fi Direct, Hotspot
USB
Type-C, USB 2.0	Type-C
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning	GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, Cell ID, Wi-Fi positioning
Sensors
Accelerometer, Gyroscope	Accelerometer, Gyroscope, Compass
Other
	NFC

Multimedia

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

Cellular

5G
	Bands n1, n3, n5, n7, n8, n20, n28, n38, n40, n41, n66, n77, n78, 5G Ready
4G (FDD)
Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD)	Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 17(700 b), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 32(1500 L-band), 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), 5(850), 8(900)	Bands 1(2100), 2(1900), 3(1800), 5(850), 8(900)
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

Buyers information

MSRP
	$ 489
In The Box
This is the official Samsung Galaxy M21 User Guide in English provided from the manufacturer.

Availability

Officially announced
Mar 18, 2020	Mar 11, 2024

Alternative variants

with 128GB storage


RAM	6GB
Internal storage	128GB

With 256GB internal storage


Internal storage	256GB

With 12GB RAM and 256GB internal storage


RAM	12GB
Internal storage	256GB

Links

Full specifications
Samsung Galaxy M21 Specs	Samsung Galaxy A55 5G Specs
PhoneArena Review
	Samsung Galaxy A55 5G Review