Samsung Galaxy S9 vs Samsung Galaxy A55 5G Specs Comparison

Availability

Officially announced
Feb 25, 2018	Mar 11, 2024
MSRP
$ 720	$ 489

Design

Dimensions
5.81 x 2.70 x 0.33 inches 147.7 x 68.7 x 8.5 mm	6.34 x 3.05 x 0.00 inches 161.1 x 77.4 8.2 mm
Weight
5.75 oz (163.0 g)	7.51 oz (213.0 g)
Materials
Back: Glass (Corning Gorilla Glass 5) Frame: Aluminum	Back: Glass (Corning Gorilla Glass) Frame: Plastic
Resistance
Water, Dust; IP68	Water, Dust; IP67
Biometrics
Iris scanner, 2D Face unlock, Fingerprint (touch)	Optical in-screen fingerprint
Features
Notification light
Keys
Left: Volume control, Other; Right: Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Midnight black, Coral blue, Titanium gray, Lilac purple, Burgundy red, Sunrise gold, Ice blue	Iceblue, Lilac, Navy, Lemon

Display

Size
5.8-inch, 84.36% screen-to-body	6.6-inch, 84.30% screen-to-body
Type
Super AMOLED, HDR	Super AMOLED, 120Hz, HDR, 550 nits
Resolution
2960x1440px, 18.5:9 ratio, 568 PPI	2400x1080px, 20:9 ratio, 399 PPI
Protection
Corning Gorilla Glass 5	Corning Gorilla Glass Victus

Hardware

System chip
Snapdragon 845 SDM845 (10 nm)	Exynos 1480 (5 nm)
Processor
Octa-core 2800 MHz Kryo 385	Octa-core 4x2.7GHz Cortex-A78 4x2.0G​Hz Cortex-A55
GPU
Adreno 630	Yes
Memory
4GB (LPDDR4)/64GB 4GB/128GB 4GB/256GB	8GB/128GB 8GB/256GB 12GB/256GB
Storage expansion
microSDXC up to 400 GB	microSDXC
OS
Android (10, 9.0 Pie, 8.0 Oreo)	Android (14)

Battery

Type
3000 mAh, Li - Ion	5000 mAh, Li - Ion
Charging
Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging Qi and Powermat wireless charging	Fast charging
Charge speed
	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
Single camera	Triple camera
Main camera
12 MP (OIS, PDAF) Aperture size: F1.5/F2.4 Sensor size: 1/2.55" Pixel size: 1.4 μm	50 MP (OIS, Autofocus) Aperture size: F1.8 Sensor size: 1/1.56" Pixel size: 1.0 μm
Second camera
	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
Flash
LED	LED
Video recording
4K UHD (60 fps), 1080p (240 fps), 720p (960 fps) HDR, Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking, Picture-taking during video recording, Video calling, Video sharing	4K UHD (30 fps)
Front
8 MP (Autofocus, HDR) Video capture: QHD (30 fps)	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 MIMO, 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 3.1	Type-C
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Location
GPS, A-GPS, Glonass, Galileo, BeiDou	GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, Cell ID, Wi-Fi positioning
Other
NFC, ANT+	NFC

Multimedia

Headphones
3.5mm jack	No 3.5mm jack
Speakers
Earpiece, Multiple speakers	Earpiece, Multiple speakers
Features
32-Bit DAC, aptX-HD
Screen mirroring
Wireless screen share	Wireless screen share
Radio
FM
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, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)	Bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 25, 26, 28, 32(1500 L-band), 66(AWS-3)
4G (TDD)
Bands 38, 39, 40, 41, 46	Bands 38, 40, 41
3G
Bands 5, 8, 4, 2, 1	Bands 1, 2, 3, 5, 8
Data Speed
LTE-A Pro Cat 18 (1200/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA	LTE-A, HSDPA+ (4G) 42.2 Mbit/s
Dual SIM
	Yes
SIM type
Nano SIM	Nano SIM, eSIM

Regulatory Approval

FCC approval
Date approved: Jan 11, 2018 FCC ID value: A3LSMG960U
Measured SAR
Head: 0.35 W/kg Body: 0.96 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 0.95 W/kg

Alternative variants

International version

System chip	Samsung Exynos 9 9810 (10 nm)
Processor	Octa-core 2900 MHz Exynos M3 and ARM Cortex-A55
GPU	Mali-G72 MP18
FCC approval	Date approved: Dec 27, 2017 FCC ID value: A3LSMG960F
Measured SAR	Head: 0.26 W/kg Body: 1.00 W/kg Simultaneous Transmission: 1.56 W/kg Wireless Router: 1.04 W/kg

With 256GB internal storage

Memory	256GB

with Dual SIM

System chip	Samsung Exynos 9 9810 (10 nm)
Processor	Octa-core 2900 MHz Exynos M3 and ARM Cortex-A55
GPU	Mali-G72 MP18
Dual SIM	Yes

With 12GB RAM and 256GB internal storage

Memory	12GB/256GB

with 256 GB storage

Memory	256GB
MSRP	$ 820

with 128 GB storage

Memory	128GB
MSRP	$ 770

Links

Full specifications
Samsung Galaxy S9 Specs	Samsung Galaxy A55 5G Specs
PhoneArena Review
Samsung Galaxy S9 Review	Samsung Galaxy A55 5G Review
User Reviews
Samsung Galaxy S9 User Reviews