Samsung Galaxy A51 5G vs Samsung Galaxy S9 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
Samsung Galaxy A51 5G Samsung Galaxy S9
Released · Apr 29, 2020
Released · Mar 16, 2018
6.5-inch · 2400x1080px
5.8-inch · 2960x1440px
Quad camera
Single camera
6GB · 128GB
4GB · 64GB
4500 mAh
3000 mAh
Check prices Check prices

Availability

Officially announced
Apr 08, 2020 Feb 25, 2018
MSRP
$ 500 $ 720

Design

Dimensions
6.26 x 2.90 x 0.34 inches
158.9 x 73.6 x 8.7 mm
5.81 x 2.70 x 0.33 inches
147.7 x 68.7 x 8.5 mm
Weight
6.60 oz (187.0 g) 5.75 oz (163.0 g)
Materials
Back: Plastic
Frame: Aluminum
Back: Glass (Corning Gorilla Glass 5)
Frame: Aluminum
Resistance
Water, Dust; IP68
Biometrics
2D Face unlock, Optical in-screen fingerprint Iris scanner, 2D Face unlock, Fingerprint (touch)
Features
Notification light
Keys
Right: Volume control, Lock/Unlock key Left: Volume control, Other; Right: Lock/Unlock key
Colors
Prism cube black Midnight black, Coral blue, Titanium gray, Lilac purple, Burgundy red, Sunrise gold, Ice blue

Display

Size
6.5-inch, 87.37% screen-to-body 5.8-inch, 84.36% screen-to-body
Type
Super AMOLED, 60Hz Super AMOLED, HDR
Resolution
2400x1080px, 20:9 ratio, 405 PPI 2960x1440px, 18.5:9 ratio, 568 PPI
Protection
Corning Gorilla Glass 3 Corning Gorilla Glass 5

Hardware

System chip
Samsung Exynos 980 (8 nm) Snapdragon 845 SDM845 (10 nm)
Processor
Octa-core
2x2.2GHz Cortex-A77
6x1.8G​Hz Cortex-A55
Octa-core
2800 MHz
Kryo 385
GPU
Mali-G76 MP5 Adreno 630
Memory
6GB (LPDDR4)/128GB
8GB/128GB
4GB (LPDDR4)/64GB
4GB/128GB
4GB/256GB
Storage expansion
microSDXC up to 1000 GB microSDXC up to 400 GB
OS
Android (11, 10) Android (10, 9.0 Pie, 8.0 Oreo)

Battery

Type
4500 mAh, Li - Polymer 3000 mAh, Li - Ion
Charging
Fast charging Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging
Qi and Powermat wireless charging
Charge speed
Wired: 25.0W

Camera

Rear
Quad camera Single camera
Main camera
48 MP (PDAF)
Aperture size: F2.0
Focal length: 26 mm
Sensor size: 1/2"
Pixel size: 0.8 μm
12 MP (OIS, PDAF)
Aperture size: F1.5/F2.4
Sensor size: 1/2.55"
Pixel size: 1.4 μm
Second camera
12 MP (Ultra-wide)
Aperture size: F2.2
Focal Length: 13 mm
Pixel size: 1.12 μm
Third camera
5 MP (Macro)
Aperture size: F2.4
Focal Length: 40 mm
Fourth camera
5 MP (Depth information)
Aperture size: F2.2
Sensor size: 1/5"
Pixel size: 1.12 μm
Flash
LED LED
Video recording
4K UHD (30 fps), 1080p (120 fps), 720p (480 fps)
Hyperlapse, EIS
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
Front
32 MP (HDR)
Video capture: 1080p
8 MP (Autofocus, HDR)
Video capture: QHD (30 fps)

Connectivity & Features

Bluetooth
5.0 5.0
WLAN
a,b,g,n,ac,dual-band
Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac
a,b,g,n,ac,dual-band
MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac
USB
Type-C, USB 2.0 Type-C, USB 3.1
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Ambient light sensor, Proximity sensor Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer, Ambient light sensor, Proximity sensor
Hearing aid compatible
M3/T3
Location
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning GPS, A-GPS, Glonass, Galileo, BeiDou
Other
NFC, ANT+ NFC, ANT+

Multimedia

Headphones
3.5mm jack 3.5mm jack
Speakers
Earpiece, Loudspeaker Earpiece, Multiple speakers
Features
Dolby Atmos 32-Bit DAC, aptX-HD
Screen mirroring
Wireless screen share Wireless screen share
Radio
FM FM
Additional microphone(s)
Noise cancellation Noise cancellation

Cellular

5G
Bands n41, n71, SA, NSA
4G (FDD)
Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 66(AWS-3), 71(600) 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)
4G (TDD)
Bands 38, 39, 40, 41 Bands 38, 39, 40, 41, 46
3G
Bands 1, 2, 4, 5 Bands 5, 8, 4, 2, 1
Data Speed
LTE-A Pro Cat 16 (1000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s LTE-A Pro Cat 18 (1200/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA
SIM type
Nano SIM
HD Voice
Yes

Regulatory Approval

FCC approval
Date approved: Jul 15, 2020
FCC ID value: A3LSMA516U
Date approved: Jan 11, 2018
FCC ID value: A3LSMG960U
Measured SAR
Head: 1.18 W/kg
Body: 1.20 W/kg
Simultaneous Transmission: 3.25 W/kg
Wireless Router: 1.37 W/kg
Head: 0.35 W/kg
Body: 0.96 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 0.95 W/kg

Alternative variants

with 8GB RAM
Memory 8GB
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
for Europe
Colors Prism cube black, Prism cube white
5G Bands n41, n78, SA, NSA
4G (FDD) Bands 1, 3, 4, 5, 7, 8, 12, 20, 28
4G (TDD) Bands 38, 40, 41
3G Bands 5, 8, 2, 1
Dual SIM Yes
SIM type Nano SIM
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
for Verizon
System chip Snapdragon 765G SM7250-AB (7 nm)
Processor Octa-core
2400 MHz
Kryo 475
GPU Adreno 620
Colors Prism bricks blue
5G Bands n260, n261, mmWave
4G (FDD) Bands 2, 3, 4, 5, 7, 12, 13, 20, 28, 66(AWS-3)
3G Bands 5, 8, 2, 1
FCC approval Date approved: Jul 20, 2020
FCC ID value: A3LSMA516V
Measured SAR Head: 0.32 W/kg
Body: 1.32 W/kg
Simultaneous Transmission: 3.01 W/kg
Wireless Router: 1.37 W/kg
Phablet: 3.91 W/kg
MSRP $ 550
with 256 GB storage
Memory 256GB
MSRP $ 820
with 128 GB storage
Memory 128GB
MSRP $ 770
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