Samsung Galaxy S9 vs Xiaomi Mi Mix 4 Specs Comparison

Availability

Officially announced
Feb 25, 2018	Aug 10, 2021
Prices (MSRP)
$720

Design

Dimensions
5.81 x 2.70 x 0.33 inches 147.7 x 68.7 x 8.5 mm	6.40 x 2.97 x 0.31 inches 162.6 x 75.4 x 8 mm
Weight
5.75 oz / 163.0 g	7.94 oz / 225.0 g
Materials
Back: Glass (Corning Gorilla Glass 5) Frame: Aluminum	Back: Ceramic Frame: Aluminum
Resistance
Water, Dust; IP68	Splash, Dust; IP53
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	Ceramic Black, Ceramic White, Shadow Gray

Display

Size
5.8-inch, 84.36% screen-to-body	6.7-inch, 87.59% screen-to-body
Type
Super AMOLED, HDR	AMOLED, 120Hz, HDR
Resolution
2960x1440px, 18.5:9 ratio, 568 PPI	2400x1080px, 20:9 ratio, 395 PPI
Protection
Corning Gorilla Glass 5	Corning Gorilla Glass Victus

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 888+ SM8350-AC (5 nm)
Processor
Octa-core 2800 MHz Kryo 385	Octa-core Kryo 680 Prime
GPU
Adreno 630	Adreno 660
Memory
4GB (LPDDR4)/64GB 4GB/128GB 4GB/256GB	8GB (LPDDR5)/128GB (UFS 3.1) 8GB/256GB 12GB/256GB 12GB/512GB
Storage expansion
microSDXC up to 400 GB	not expandable
OS
Android (10, 9.0 Pie, 8.0 Oreo)	Android (11)

Battery

Type
3000 mAh, Li - Ion	4500 mAh, Li - Ion
Charging
Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging Qi and Powermat wireless charging	Fast charging Qi wireless charging, Reverse wireless charging
Charge speed
	Wired: 120.0W Wireless: 50.0W

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	108 MP (OIS, Laser and PDAF) Aperture size: F1.9 Focal length: 24 mm Sensor size: 1/1.33" Pixel size: 0.8 μm
Second camera
	13 MP (Ultra-wide) Aperture size: F2.2 Focal Length: 12 mm Sensor size: 1/3.06" Pixel size: 1.12 μm
Third camera
	8 MP (Periscope, OIS, PDAF) Optical zoom: 5.0x
Flash
LED	Dual 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	8K UHD (24 fps), 4K UHD (60 fps), 1080p (480 fps), 720p (480 fps) HDR, Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking
Front
8 MP (Autofocus, HDR) Video capture: QHD (30 fps)	20 MP (Under-screen) Video capture: 1080p

Connectivity & Features

Bluetooth
5.0	5.2
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 MIMO, Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax
USB
Type-C, USB 3.1	Type-C, USB 2.0
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer, Ambient light sensor, Proximity sensor
Location
GPS, A-GPS, Glonass, Galileo, BeiDou	GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, NavIC, 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
Radio
FM
Additional microphone(s)
Noise cancellation

Cellular

5G Bands
	n1, n3, n5, n8, n28, n41, n77, n78, n79, SA, NSA, Sub-6
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, 8, 12, 17, 18, 19, 20, 26, 28
4G (TDD) Bands
38, 39, 40, 41, 46	34, 38, 39, 40, 41, 42
3G Bands
5, 8, 4, 2, 1	1, 2, 4, 5, 6, 8, 19
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
HD Voice
	Yes
VoLTE
	Yes

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
Prices (MSRP)	$820

With 12GB RAM and 512GB internal storage

Memory	12GB/512GB

with 128 GB storage

Memory	128GB
Prices (MSRP)	$770

Links

Full specifications
Samsung Galaxy S9 Specs	Xiaomi Mi Mix 4 Specs
PhoneArena Review
Samsung Galaxy S9 Review
User Reviews
Samsung Galaxy S9 User Reviews