Samsung Galaxy S9 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.

9.0
Samsung Galaxy S9
5.8
Samsung Galaxy A55 5G
Samsung Galaxy S9 Samsung Galaxy A55 5G
Released · Mar 16, 2018
Released · Mar 20, 2024
5.8-inch · 2960x1440px
6.6-inch · 2400x1080px
Single camera
Triple camera
4GB · 64GB
8GB · 128GB
3000 mAh
5000 mAh
Check prices Check prices

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

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

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
FCC OKs Cingular\'s purchase of AT&T Wireless