Samsung Galaxy S9 vs Xiaomi Mi Mix 4 Specs Comparison

Compare phone and tablet specifications of up to three devices at once.

Display

Size:

5.8 inches
6.7 inches

Resolution:

2960 x 1440 pixels, 18.5:9 ratio, 568 PPI
2400 x 1080 pixels, 20:9 ratio, 395 PPI

Technology:

Super AMOLED
AMOLED

Refresh rate:

120Hz

Screen-to-body:

84.36 %
87.59 %

Features:

HDR support, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor
HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor

Hardware

System chip:

Qualcomm Snapdragon 845 SDM845 (10 nm)
Qualcomm Snapdragon 888+ SM8350-AC (5 nm)

Processor:

Octa-core, 2800 MHz, Kryo 385, 64-bit
Octa-core, 3000 MHz, Kryo 680 Prime, 64-bit

GPU:

Adreno 630
Adreno 660

RAM:

4GB LPDDR4
8GB LPDDR5

Internal storage:

64GB
128GB (UFS 3.1), not expandable

Storage expansion:

microSDXC up to 400 GB

Device type:

Smartphone
Smartphone

OS:

Android (10, 9.0 Pie, 8.0 Oreo), Samsung One UI
Android (11), MIUI 12.5 UI

Battery

Capacity:

3000 mAh
4500 mAh

Type:

Li - Ion, Not user replaceable
Li - Ion, Not user replaceable

Charging:

Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging
Fast charging, Qi wireless charging, Reverse wireless charging

Max charge speed:

Wired: 120.0W; Wireless: 50.0W

Camera

Rear:

Single camera
Triple camera

Main camera:

12 MP (OIS, PDAF)
108 MP (OIS, Laser and PDAF)

Specifications:

Aperture size: F1.5/F2.4; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Aperture size: F1.9; Focal length: 24 mm; Sensor size: 1/1.33"; Pixel size: 0.8 μm

Second camera:

8 MP (Periscope, OIS, PDAF)

Specifications:

Optical zoom: 5.0x

Third camera:

13 MP (Ultra-wide)

Specifications:

Aperture size: F2.2; Focal Length: 12 mm; Sensor size: 1/3.06"; Pixel size: 1.12 μm

Flash:

LED
Dual LED

Video recording:

3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)
7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (480 fps), 1280x720 (HD) (480 fps)

Features:

HDR, Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking, Picture-taking during video recording, Video calling, Video sharing
HDR, Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking

Front:

8 MP (Autofocus, HDR)
20 MP (Under-screen)

Video capture:

2560x1440 (QHD) (30 fps)
1920x1080 (Full HD)

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)
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

Cellular

5G:

n1, n3, n5, n8, n28, n41, n77, n78, n79, SA, NSA, Sub-6

4G (FDD):

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 29(700 d), 30(2300 WCS), 66(AWS-3), 71(600)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 8(900), 12(700 a), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 26(850+), 28(700 APT)

4G (TDD):

Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46
Bands 34(2000), 38(2600), 39(1900+), 40(2300), 41(2600+), 42(3500)

3G:

Bands 5(850), 8(900), 4(1700/2100), 2(1900), 1(2100)
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 6(800), 8(900), 19(800)

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

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):

for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth:

5.0
5.2

Wi-Fi:

802.11 a, b, g, n, ac, dual-band; MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, ax (Wi-Fi 6); MIMO, Wi-Fi Direct, Hotspot

USB:

Type-C (reversible), USB 3.1
Type-C (reversible), USB 2.0

Features:

Charging, OTG, Video out
Charging

Location:

GPS, A-GPS, Glonass, Galileo, BeiDou
GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, NavIC, Cell ID, Wi-Fi positioning

Sensors:

Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer

Other:

NFC, ANT+
NFC

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

Buyers information

Price:

$ 720

In The Box:

Power adapter, USB Type-C data cable, Type-C to 3.5mm headphone cable, Mobile phone protective shell, Film (covered on the screen), Pins, Instructions (including three packs of certificates)

Availability

Officially announced:

Feb 25, 2018
Aug 10, 2021
FCC OKs Cingular\'s purchase of AT&T Wireless