Samsung Galaxy S9 vs Xiaomi Mi A3 Specs Comparison

Availability

Officially announced
Feb 25, 2018	Jul 17, 2019
Prices (MSRP)
$720

Design

Dimensions
5.81 x 2.70 x 0.33 inches 147.7 x 68.7 x 8.5 mm	6.04 x 2.83 x 0.33 inches 153.48 x 71.85 x 8.475 mm
Weight
5.75 oz / 163.0 g	6.13 oz / 173.8 g
Materials
Back: Glass (Corning Gorilla Glass 5) Frame: Aluminum	Back: Glass (Corning Gorilla Glass 5) Frame: Plastic
Resistance
Water, Dust; IP68
Biometrics
Iris scanner, 2D Face unlock, Fingerprint (touch)	2D Face unlock, Optical in-screen fingerprint
Features
Notification light
Keys
Left: Volume control, Other; Right: Lock/Unlock key	Back: Volume control, Lock/Unlock key
Colors
Midnight black, Coral blue, Titanium gray, Lilac purple, Burgundy red, Sunrise gold, Ice blue	Gray, Blue, White

Display

Size
5.8-inch, 84.36% screen-to-body	6.1-inch, 82.56% screen-to-body
Type
Super AMOLED, HDR	Super AMOLED
Resolution
2960x1440px, 18.5:9 ratio, 568 PPI	1560x720px, 19.5:9 ratio, 282 PPI
Protection
Corning Gorilla Glass 5	Corning Gorilla Glass 5

PhoneArena Display Test

Bright Max (20% APL)
Untested	Untested
Bright Min
1 (Excellent)	Untested

Learn more on our PhoneArena Display Test Results page.

Hardware

System chip
Snapdragon 845 SDM845 (10 nm)	Snapdragon 665 (11 nm)
Processor
Octa-core 2800 MHz Kryo 385	Octa-core 2000 MHz Kryo 260
GPU
Adreno 630	Adreno 610
Memory
4GB (LPDDR4)/64GB 4GB/128GB 4GB/256GB	4GB (LPDDR4)/128GB 4GB/64GB
Storage expansion
microSDXC up to 400 GB	microSDXC up to 256 GB
OS
Android (10, 9.0 Pie, 8.0 Oreo)	Android (11, 10, 9.0 Pie)

Battery

Type
3000 mAh, Li - Ion	4030 mAh
Charging
Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging Qi and Powermat wireless charging	Qualcomm Quick Charge 3.0

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	48 MP (PDAF) Aperture size: F1.8 Sensor size: 1/2.3" Pixel size: 0.8 μm
Second camera
	8 MP (Ultra-wide) Aperture size: F2.2 Pixel size: 1.12 μm
Third camera
	2 MP (Depth information) 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), 1080p (120 fps), 720p (240 fps) EIS, Video calling, Video sharing
Front
8 MP (Autofocus, HDR) Video capture: QHD (30 fps)	32 MP Video capture: 1080p

Connectivity & Features

Bluetooth
5.0	5.0
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,dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac
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, BeiDou, Cell ID, Wi-Fi positioning
Other
NFC, ANT+	Infrared, VoIP, Tethering, Computer sync, OTA sync

Discover more

Full Specs Samsung Galaxy S9 Specs PA Review Samsung Galaxy S9 Review

Full Specs Xiaomi Mi A3 Specs

Multimedia

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

Cellular

4G (FDD) Bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 66, 71	1, 2, 3, 4, 5, 7, 8, 20, 28
4G (TDD) Bands
38, 39, 40, 41, 46	38, 40
3G Bands
5, 8, 4, 2, 1	5, 8, 4, 2, 1
Data Speed
LTE-A Pro Cat 18 (1200/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA	LTE-A Cat 9 (450/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
Dual SIM
	Yes
SIM type
Nano SIM	Nano SIM

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 64 GB storage

Memory	64GB

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 256 GB storage

Memory	256GB
Prices (MSRP)	$820

with 128 GB storage

Memory	128GB
Prices (MSRP)	$770