Comparison between:
- Xiaomi Mi 9 SE
- Xiaomi Mi 9
- Xiaomi Redmi Note 9
- Xiaomi Mi MIX 2

Brand and model

Information about the brand, model and model alias (if any) of a specific device.

Xiaomi Mi 9 SEXiaomi Mi 9Xiaomi Redmi Note 9Xiaomi Mi MIX 2
Xiaomi Mi 9 SE
Prices
Xiaomi Mi 9
Prices
Xiaomi Redmi Note 9
Prices
Xiaomi Mi MIX 2
Prices
Model aliasMi9SEMi9
M1902F1G
Redmi Note9
M2003J15SC
Mi Mix Evo
Mi Mix2

Design

Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.

Width70.5 mm
7.05 cm
0.231 ft
2.776 in
74.67 mm
7.467 cm
0.245 ft
2.94 in
77.2 mm
7.72 cm
0.253 ft
3.039 in
75.5 mm
7.55 cm
0.248 ft
2.972 in
Height147.5 mm
14.75 cm
0.484 ft
5.807 in
157.5 mm
15.75 cm
0.517 ft
6.201 in
162.3 mm
16.23 cm
0.532 ft
6.39 in
151.8 mm
15.18 cm
0.498 ft
5.976 in
Thickness7.45 mm
0.745 cm
0.024 ft
0.293 in
7.61 mm
0.761 cm
0.025 ft
0.3 in
8.9 mm
0.89 cm
0.029 ft
0.35 in
7.7 mm
0.77 cm
0.025 ft
0.303 in
Weight155 g
0.34 lbs
5.47 oz
173 g
0.38 lbs
6.1 oz
199 g
0.44 lbs
7.02 oz
185 g
0.41 lbs
6.53 oz
Volume77.47 cm³
4.7 in³
89.5 cm³
5.44 in³
111.51 cm³
6.77 in³
88.25 cm³
5.36 in³
ColorsBlue
Black
Violet
Black
Blue
Violet
Blue
Black
White
Pink
Red
Green
Black
White
Body materialsAluminium alloy
Glass
Aluminium alloy
Glass
Glass
Plastic
Aluminium alloy
Ceramic

SIM card

The Subscriber Identity Module (SIM) is used in mobile devices for storing data authenticating the subscribers of mobile services.

SIM card typeNano-SIMNano-SIMNano-SIMNano-SIM
Number of SIM cards2222
FeaturesDual SIM stand-by (Both cards are active. When one is busy, the other is not active)Dual SIM stand-by (Both cards are active. When one is busy, the other is not active)Dual SIM stand-by (Both cards are active. When one is busy, the other is not active)Dual SIM stand-by (Both cards are active. When one is busy, the other is not active)

Networks

A mobile (cellular) network is a radio system, which allows a large number of mobile devices to communicate with each other.

GSMGSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
GSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
GSM 850 MHz (B5)
GSM 900 MHz (B8)
GSM 1800 MHz (B3)
GSM 1900 MHz (B2)
GSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
CDMACDMA 800 MHzCDMA 800 MHzCDMA 800 MHz (BC0)CDMA 800 MHz
CDMA 1900 MHz
CDMA 800 MHz (B10)
W-CDMAW-CDMA 850 MHz
W-CDMA 900 MHz
W-CDMA 1900 MHz
W-CDMA 2100 MHz
W-CDMA 850 MHz
W-CDMA 900 MHz
W-CDMA 1700 MHz
W-CDMA 1900 MHz
W-CDMA 2100 MHz
W-CDMA 850 MHz (B5)
W-CDMA 900 MHz (B8)
W-CDMA 1900 MHz (B2)
W-CDMA 2100 MHz (B1)
-
TD-SCDMATD-SCDMA 1900 MHz
TD-SCDMA 2000 MHz
TD-SCDMA 1900 MHz
TD-SCDMA 2000 MHz
-TD-SCDMA 1880-1920 MHz
TD-SCDMA 2010-2025 MHz
UMTS---UMTS 850 MHz
UMTS 900 MHz
UMTS 1700/2100 MHz
UMTS 1900 MHz
UMTS 2100 MHz
LTELTE-TDD 1900 MHz (B39)
LTE-TDD 2300 MHz (B40)
LTE-TDD 2500 MHz (B41)
LTE-TDD 2600 MHz (B38)
LTE 850 MHz
LTE 900 MHz
LTE 1800 MHz
LTE 2100 MHz
LTE 2600 MHz
LTE 700 MHz (B12)
LTE-TDD 1900 MHz (B39)
LTE-TDD 2300 MHz (B40)
LTE-TDD 2500 MHz (B41)
LTE-TDD 2600 MHz (B38)
LTE 700 MHz Class 17
LTE 800 MHz
LTE 850 MHz
LTE 900 MHz
LTE 1700/2100 MHz
LTE 1800 MHz
LTE 1900 MHz
LTE 2100 MHz
LTE 2600 MHz
LTE 700 MHz (B12)
LTE 700 MHz (B28)
LTE-FDD 850 MHz (B5)
LTE-FDD 900 MHz (B8)
LTE-FDD 1800 MHz (B3)
LTE-FDD 2100 MHz (B1)
LTE-FDD 2600 MHz (B7)
LTE-TDD 2300 MHz (B40)
LTE-TDD 2500 MHz (B41)
LTE 700 MHz Class 13
LTE 700 MHz Class 17
LTE 800 MHz
LTE 850 MHz
LTE 900 MHz
LTE 1700/2100 MHz
LTE 1800 MHz
LTE 1900 MHz
LTE 2100 MHz
LTE 2600 MHz
LTE-TDD 1900 MHz (B39)
LTE-TDD 2300 MHz (B40)
LTE-TDD 2500 MHz (B41)
LTE-TDD 2600 MHz (B38)
LTE 850 MHz (B26)
LTE 1900 MHz (B25)
LTE 700 MHz (B12)
LTE 700 MHz (B28)
LTE 800 MHz (B18)
LTE 800 MHz (B19)
LTE 700 MHz (B29)
LTE 2300 MHz (B30)

Mobile network technologies and bandwidth

Communication between devices within mobile networks is realized via various generations of network technologies, which provide different bandwidth.

Mobile network technologiesUMTS
EDGE
GPRS
HSPA+
LTE Cat 15
EV-DO Rev. A
TD-SCDMA
TD-HSDPA
UMTS
EDGE
GPRS
HSPA+
LTE Cat 18
EV-DO Rev. A
TD-SCDMA
TD-HSDPA
UMTS
EDGE
GPRS
HSPA+
LTE Cat 12
EV-DO Rev. A
TD-SCDMA
TD-HSDPA
UMTS
EDGE
GPRS
HSPA+
LTE Cat 12
EV-DO Rev. A
TD-SCDMA
TD-HSDPA

Operating system

Operating system is the system software, which manages and controls the functioning of the hardware components of the device.

Operating system (OS)MIUI V10.2 (Android 9.0 Pie)MIUI V10.2 (Android 9.0 Pie)MIUI V11 (Android 10)MIUI V8.5.4 (Android 7.1.1 Nougat)
MIUI V9.1.1 (Android 7.1 Nougat)
MIUI (Android 9.0 Pie)

System on Chip (SoC)

A system on a chip (SoC) includes into a single chip some of the main hardware components of the mobile device.

SoCQualcomm Snapdragon 712Qualcomm Snapdragon 855MediaTek Helio G85Qualcomm Snapdragon 835 MSM8998
Process technology10 nm7 nm12 nm10 nm
CPU2x 2.3 GHz Kryo 360, 6x 1.7 GHz Kryo 3601x 2.84 GHz Kryo 485, 3x 2.42 GHz Kryo 485, 4x 1.8 GHz Kryo 4852x 2.0 GHz ARM Cortex-A75, 6x 1.8 GHz ARM Cortex-A554x 2.45 GHz Kryo 280, 4x 1.9 GHz Kryo 280
CPU bits64 bit64 bit64 bit64 bit
Instruction setARMv8ARMv8-AARMv8.2-AARMv8-A
Level 1 cache memory (L1)---32 KB + 32 KB
Level 2 cache memory (L2)---3072 KB
3 MB
CPU cores8888
CPU frequency2300 MHz2840 MHz2000 MHz2450 MHz
GPUQualcomm Adreno 616Qualcomm Adreno 640ARM Mali-G52 2EEMC2Qualcomm Adreno 540
GPU cores--2-
GPU frequency--1000 MHz710 MHz
RAM capacity6 GB6 GB
8 GB
3 GB
4 GB
6 GB
RAM typeLPDDR4XLPDDR4XLPDDR4XLPDDR4X
RAM channelsDouble channelDouble channelDouble channelDouble channel
RAM frequency1866 MHz2133 MHz1800 MHz1866 MHz

Storage

Every mobile device has a built-in storage (internal memory) with a fixed capacity.

Storage64 GB
128 GB
64 GB
128 GB
64 GB
128 GB
64 GB
128 GB
256 GB
UFS 2.1UFS 2.1eMMC 5.1UFS 2.1

Memory cards

Memory cards are used in mobile devices for expanding their external storage capacity.

Types--microSD
microSDHC
microSDXC
-

Display

The display of a mobile device is characterized by its technology, resolution, pixel density, diagonal length, color depth, etc.

Type/technologySuper AMOLEDSuper AMOLEDIPSJDI IPS
Diagonal size5.97 in
151.64 mm
15.16 cm
6.39 in
162.31 mm
16.23 cm
6.53 in
165.86 mm
16.59 cm
5.99 in
152.15 mm
15.21 cm
Width2.5 in
63.55 mm
6.35 cm
2.68 in
68.02 mm
6.8 cm
2.74 in
69.51 mm
6.95 cm
2.68 in
68.04 mm
6.8 cm
Height5.42 in
137.68 mm
13.77 cm
5.8 in
147.37 mm
14.74 cm
5.93 in
150.6 mm
15.06 cm
5.36 in
136.08 mm
13.61 cm
Aspect ratio2.167:12.167:12.167:12:1
2:1 (18:9)
Resolution1080 x 2340 pixels1080 x 2340 pixels1080 x 2340 pixels1080 x 2160 pixels
Pixel density432 ppi
169 ppcm
403 ppi
158 ppcm
395 ppi
155 ppcm
403 ppi
158 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area84.41 %85.5 %83.81 %81.05 %
Other featuresCapacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Scratch resistant
Capacitive
Scratch resistant
Capacitive
Multi-touch
Scratch resistant
Display manufacturer - Samsung
Corning Gorilla Glass 5
2.5D curved glass screen
Always-On Display
60000:1 contrast ratio
430 cd/m²
Peak brightness - 600 cd/m²
HDR10
Display manufacturer - Samsung
Corning Gorilla Glass 6
2.5D curved glass screen
Always-On Display
60000:1 contrast ratio
430 cd/m²
Peak brightness - 600 cd/m²
103.8% NTSC
DC dimming
HDR10
2.5D curved glass screen
Corning Gorilla Glass 5
DotDisplay
Oleophobic coating
TÜV Rheinland Low Blue Light Certification
84% NTSC
1500:1
Corning Gorilla Glass 4
1500:1 contrast ratio
450 cd/m²

Sensors

Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.

SensorsProximity
Light
Accelerometer
Compass
Gyroscope
Barometer
Fingerprint
Hall
Proximity
Light
Accelerometer
Compass
Gyroscope
Barometer
Fingerprint
Hall
Proximity
Light
Accelerometer
Compass
Gyroscope
Fingerprint
Light
Accelerometer
Compass
Gyroscope
Barometer
Fingerprint
Hall
Ultrasonic
In-display fingerprint sensor
Step detector
Step counter
In-display fingerprint sensor
Step detector
Step counter
-Fingerprint sensor model - Fingerprint Cards / Goodix

Rear camera

The primary camera of the mobile device is usually placed on its back and can be combined with one or more additional cameras.

Sensor modelSony IMX586 Exmor RSSony IMX586 Exmor RSSamsung S5KGM2Sony IMX386 Exmor RS
Sensor typeCMOS BSICMOS BSICMOSCMOS
Sensor size---4.96 x 3.72 mm
0.24 in
Sensor format1/2"1/2"1/2.25"-
Pixel size0.8 µm
0.000800 mm
0.8 µm
0.000800 mm
0.8 µm
0.000800 mm
1.24 µm
0.001240 mm
Crop factor---6.98
ISO100 - 3200100 - 3200-100 - 3200
Aperturef/1.75f/1.75f/1.79f/2
Focal length and 35 mm equivalent4.77 mm
26 mm *(35 mm / full frame)
4.75 mm
27 mm *(35 mm / full frame)
-4.5 mm
31.4 mm *(35 mm / full frame)
Number of lenses6665
Flash typeDual LEDDual LEDLEDDual LED
Image resolution8000 x 6000 pixels
48 MP
8000 x 6000 pixels
48 MP
8000 x 6000 pixels
48 MP
4000 x 3000 pixels
12 MP
Video resolution3840 x 2160 pixels
8.29 MP
3840 x 2160 pixels
8.29 MP
3840 x 2160 pixels
8.29 MP
3840 x 2160 pixels
8.29 MP
Video FPS30 fps60 fps30 fps30 fps
FeaturesAutofocus
Continuous shooting
Digital zoom
Optical zoom
Digital image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Macro mode
Phase detection autofocus (PDAF)
RAW
Autofocus
Continuous shooting
Digital zoom
Optical zoom
Digital image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Macro mode
RAW
Phase detection autofocus (PDAF)
Laser autofocus (LAF)
Contrast detection autofocus (CDAF)
Autofocus
Digital zoom
Digital image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Macro mode
Phase detection autofocus (PDAF)
Autofocus
Continuous shooting
Digital zoom
Digital image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Phase detection autofocus (PDAF)
Pixel size - 1.6 μm (4-in-1 pixel binning)
Sapphire crystal glass lens cover
1080p @ 120 fps
720p @ 960 fps
Secondary rear camera - 8 MP (telephoto)
Pixel size - 1.12 μm (#2)
Aperture size - f/2.4 (#2)
Focal length (35 mm equivalent) - 52 mm (#2)
2x Optical zoom (#2)
Third rear camera - 13 MP (ultra-wide angle)
Pixel size - 1.12 μm (#3)
Aperture size - f/2.4 (#3)
Focal length (35 mm equivalent) - 15 mm (#3)
Angle of view - 123° (#3)
Pixel size - 1.6 μm (4-in-1 pixel binning)
Sapphire crystal glass lens cover
1080p @ 960 fps
720p @ 960 fps
Secondary rear camera - 12 MP (telephoto)
Sensor model - Samsung S5K3M5 (#2)
Sensor type - ISOCELL (#2)
Sensor size - 1/3.4" (#2)
Pixel size - 1.0 μm (#2)
Aperture size - f/2.2 (#2)
6-element lens (#2)
Focal length (35 mm equivalent) - 51 mm (#2)
Third rear camera - 16 MP (ultra-wide angle)
Sensor model - Sony IMX481 Exmor RS (#3)
Sensor size - 1/3" (#3)
Pixel size - 1.0 μm (#3)
Aperture size - f/2.2 (#3)
6-element lens (#3)
Focal length (35 mm equivalent) - 17 mm (#3)
Angle of view - 117° (#3)
Sony IMX582 versions also available
Pixel size - 1.6 μm (4-in-1 pixel binning)
Secondary rear camera - 8 MP (ultra-wide)
Sensor model - OmniVision OV8856 (#2)
GalaxyCore GC8034 version also available(#2)
Sensor size - 1/4" (#2)
Pixel size - 1.12 μm (#2)
Aperture size - f/2.2 (#2)
Angle of view - 118° (#2)
Focal length (35 mm equivalent) - 13 mm (#2)
Third rear camera - 2MP (depth-sensing)
Sensor model - GalaxyCore GC02M1 (#3)
Sensor size - 1/5" (#3)
Pixel size - 1.75 μm (#3)
Aperture size - f/2.4 (#3)
Fourth rear camera - 2MP (macro)
Pixel size - 1.12 μm (#4)
2 cm shooting distance (#4)
4-axis OIS
720p @ 120 fps

Front camera

Modern smartphones have one or more front cameras and their positioning has led to various design concepts – pop-up camera, rotating camera, notch, punch hole, under-display camera, etc.

Sensor model---OmniVision OV5675
Sensor type---PureCel
Sensor size---2.98 x 2.21 mm
0.15 in
Pixel size0.9 µm
0.000900 mm
0.9 µm
0.000900 mm
-1.151 µm
0.001151 mm
Crop factor---11.66
Aperturef/2f/2f/2f/2
Focal length and 35 mm equivalent3.45 mm
26 mm *(35 mm / full frame)
3.52 mm
18 mm *(35 mm / full frame)
-3.5 mm
40.82 mm *(35 mm / full frame)
Image resolution5184 x 3880 pixels
20.11 MP
5184 x 3880 pixels
20.11 MP
4160 x 3120 pixels
12.98 MP
2592 x 1944 pixels
5.04 MP
Video resolution1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
Video FPS30 fps30 fps30 fps30 fps
Features--Face unlock
HDR
Face detection
-

Audio

Information about the type of speakers and the audio technologies supported by the device.

SpeakerLoudspeaker
Earpiece
Loudspeaker
Earpiece
Loudspeaker
Earpiece
Loudspeaker
Earpiece
Headphone adapterHeadphone adapterSmart PA
Dual microphones with active noise cancellation
1216 linear speaker
Vibration motor
192 kHz / 24-bit
Dual ADC HD recording
Headphone adapter

Radio

The radio in a mobile device is a built-in FM radio receiver.

RadioNoNoYesNo

Tracking/Positioning

Information about the positioning and navigation technologies supported by the device.

Tracking/PositioningGPS
A-GPS
GLONASS
BeiDou
Galileo
A-GPS
GPS (L1+L5)
GLONASS (L1)
BeiDou (B1)
Galileo (E1+E5a)
GPS
A-GPS
GLONASS
Galileo
Beidou
NavIC
GPS
A-GPS
GLONASS
BeiDou

Wi-Fi

Wi-Fi is a technology that provides wireless data connections between various devices within a short range.

Wi-Fi802.11a
802.11b
802.11g
802.11n
802.11n 5GHz
802.11ac
Dual band
Wi-Fi Hotspot
Wi-Fi Direct
Wi-Fi Display
802.11a
802.11b
802.11g
802.11n
802.11n 5GHz
802.11ac
Dual band
Wi-Fi Hotspot
Wi-Fi Direct
Wi-Fi Display
802.11a
802.11b
802.11g
802.11n
802.11n 5GHz
802.11ac
Dual band
Wi-Fi Hotspot
Wi-Fi Direct
Wi-Fi Display
802.11a
802.11b
802.11g
802.11n
802.11n 5GHz
802.11ac
Dual band
Wi-Fi Hotspot
Wi-Fi Direct
Wi-Fi Display
MU-MiMO2x2 MiMO-2x2 MiMO

Bluetooth

Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances.

Version5.05.05.05.0
FeaturesA2DP
LE
A2DP
LE
A2DP
EDR
HID
LE
A2DP

USB

The Universal Serial Bus (USB) is an industry standard that allows different electronic devices to exchange data.

Connector typeUSB Type-CUSB Type-CUSB Type-CUSB Type-C
Version2.02.02.02.0
FeaturesCharging
Host
Mass storage
On-The-Go
Charging
Host
Mass storage
On-The-Go
Charging
Mass storage
On-The-Go
Charging
Host
Mass storage
On-The-Go

Headphone jack

The headphone jack is an audio phone connector, a.k.a. an audio jack. The most widely used one in mobile devices is the 3.5 mm headphone jack.

Headphone jackNoNoYesNo

Connectivity

Information about other important connectivity technologies supported by the devices.

ConnectivityComputer sync
OTA sync
Infrared
Tethering
DLNA
NFC
VoLTE
Computer sync
OTA sync
Infrared
Tethering
DLNA
NFC
VoLTE
Computer sync
OTA sync
Infrared
Tethering
NFC
VoLTE
ViLTE
VoWiFi
Computer sync
OTA sync
Tethering
NFC
VoLTE

Browser

A web browser is a software application for accessing, fetching, displaying and navigating through information on the World Wide Web.

BrowserHTML
HTML5
CSS 3
HTML
HTML5
CSS 3
HTML
HTML5
CSS 3
HTML
HTML5
CSS 3

Audio file formats/codecs

Mobile devices support various audio file formats and codecs, which respectively store and code/decode digital audio data.

Audio file formats/codecsAAC
AAC+
AMR
AMR-WB
aptX
aptX HD
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
LDAC
AAC
AAC+
AMR
AMR-WB
aptX
aptX HD
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
LDAC
AAC
AAC+
AMR
AMR-WB
aptX
aptX HD
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
LDAC
AAC
AAC+
AMR
AMR-WB
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV

Video file formats/codecs

Mobile devices support various video file formats and codecs, which respectively store and code/decode digital video data.

Video file formats/codecs3GPP
AVI
DivX
H.263
H.264
H.265
MKV
MP4
VC-1
Xvid
3GPP
AVI
DivX
H.263
H.264
H.265
MKV
MP4
VC-1
Xvid
3GPP
AVI
DivX
H.263
H.264
H.265
MKV
MP4
VC-1
Xvid
3GPP
AVI
DivX
H.263
H.264
H.265
MKV
MP4
VC-1
Xvid

Battery

The batteries of mobile devices differ in capacity and technology. They provide the electrical charge needed for the functioning of the devices.

Capacity3070 mAh3300 mAh5020 mAh3400 mAh
TypeLi-PolymerLi-PolymerLi-IonLi-Polymer
Charger output power5 V / 3 A
9 V / 2 A
12 V / 1.5 A
5 V / 3 A
9 V / 3 A
12 V / 2.25 A
20 V / 1.35 A
5 V / 3 A
9 V / 2.23 A
12 V / 1.67 A
10 V / 2.25 A
5 V / 3 A
9 V / 2 A
12 V / 1.5 A
Quick charge technologyQualcomm Quick ChargeQualcomm Quick Charge 4+-Qualcomm Quick Charge 3.0
FeaturesFast charging
Non-removable
Wireless charging
Fast charging
Non-removable
Fast charging
Non-removable
Fast charging
Non-removable
-Wireless charging - 20 W9W wired reverse charging-

Specific Absorption Rate (SAR)

The SAR rating shows the amount of electromagnetic radiation absorbed by the human body when using a mobile device, expressed in W/kg.

Head SAR (EU)1.385 W/kg1.389 W/kg-0.39 W/kg
Body SAR (EU)1.385 W/kg1.301 W/kg-1.77 W/kg
Head SAR (USA)1.19 W/kg0.99 W/kg--
Body SAR (USA)1.17 W/kg1.04 W/kg--

Additional features

Some devices have additional features, different from the standard ones above, but equally important and worth mentioning.

Additional features--P2i splash-proof nano-coating-
 Xiaomi Mi 9 SEXiaomi Mi 9Xiaomi Redmi Note 9Xiaomi Mi MIX 2