Xiaomi Mi Mix 4 vs Samsung Galaxy S9+ Specs Comparison

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

Display

Size:

6.7 inches
6.2 inches

Resolution:

2400 x 1080 pixels, 20:9 ratio, 395 PPI
2960 x 1440 pixels, 18.5:9 ratio, 531 PPI

Technology:

AMOLED
Super AMOLED

Refresh rate:

120Hz

Screen-to-body:

87.59 %
83.68 %

Features:

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

Hardware

System chip:

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

Processor:

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

GPU:

Adreno 660
Adreno 630

RAM:

8GB LPDDR5
6GB LPDDR4

Internal storage:

128GB (UFS 3.1), not expandable
64GB

Storage expansion:

microSDXC up to 400 GB

Device type:

Smartphone
Smartphone

OS:

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

Battery

Capacity:

4500 mAh
3500 mAh

Type:

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

Charging:

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

Max charge speed:

Wired: 120.0W; Wireless: 50.0W

Camera

Rear:

Triple camera
Dual camera

Main camera:

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

Specifications:

Aperture size: F1.9; Focal length: 24 mm; Sensor size: 1/1.33"; Pixel size: 0.8 μm
Aperture size: F1.5/F2.4; Focal length: 26 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm

Second camera:

8 MP (Periscope, OIS, PDAF)
12 MP (Telephoto, OIS, Autofocus)

Specifications:

Optical zoom: 5.0x
Optical zoom: 2.0x; Aperture size: F2.4; Focal Length: 52 mm; Sensor size: 1/3.6"; Pixel size: 1 μm

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:

Dual LED
LED

Video recording:

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

Features:

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

Front:

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

Video capture:

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

Design

Dimensions:

6.40 x 2.97 x 0.31 inches (162.6 x 75.4 x 8 mm)
6.22 x 2.91 x 0.33 inches (158.1 x 73.8 x 8.5 mm)

Weight:

7.94 oz (225.0 g)
6.67 oz (189.0 g)

Materials:

Back: Ceramic; Frame: Aluminum
Back: Glass (Corning Gorilla Glass 5); Frame: Aluminum

Resistance:

Splash, Dust; IP53
Water, Dust; IP68

Biometrics:

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:

Ceramic Black, Ceramic White, Shadow Gray
Midnight black, Coral blue, Titanium gray, Lilac purple, Burgundy red, Sunrise gold, Ice blue, Polaris blue

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), 8(900), 12(700 a), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 26(850+), 28(700 APT)
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)

4G (TDD):

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

3G:

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

Data Speed:

LTE-A, HSDPA+ (4G) 42.2 Mbit/s
LTE-A Pro Cat 18 (1200/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA

Dual SIM:

Yes

SIM type:

Nano SIM
Nano SIM

HD Voice:

Yes

VoLTE:

Yes

Multimedia

Headphones:

No 3.5mm jack
3.5mm jack

Speakers:

Earpiece, Multiple speakers
Earpiece, Multiple speakers

Features:

32-Bit DAC, Dolby Atmos, aptX-HD

Screen mirroring:

Wireless screen share
Wireless screen share

Radio:

FM

Additional microphone(s):

for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth:

5.2
5.0

Wi-Fi:

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

USB:

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

Features:

Charging
Charging, OTG, Video out

Location:

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

Sensors:

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

Other:

NFC
NFC, ANT+

Regulatory Approval

FCC approval:

Date approved:

Jan 11, 2018

FCC ID value:

A3LSMG965U

Measured SAR:

Head:

0.36 W/kg

Body:

0.79 W/kg

Simultaneous Transmission:

1.59 W/kg

Wireless Router:

1.04 W/kg

Phablet:

3.94 W/kg

Buyers information

Price:

$ 840

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:

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