Comparison between:
- Xiaomi Mi A2
- Xiaomi Mi 8 Lite
- Meizu Note 8
- General Mobile GM 9 Pro

Brand and model

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

Xiaomi Mi A2Xiaomi Mi 8 LiteMeizu Note 8General Mobile GM 9 Pro
Xiaomi Mi A2
Prices
Xiaomi Mi 8 Lite
Prices
Meizu Note 8
Prices
General Mobile GM 9 Pro
Model alias-Mi 8Lite
Mi 8 Youth
Mi8 Youth
Mi8Youth
Note8
M822H
M822Q
GM9 Pro
GM9Pro

Design

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

Width75.4 mm
7.54 cm
0.25 ft
2.97 in
75.8 mm
7.58 cm
0.25 ft
2.98 in
75.5 mm
7.55 cm
0.25 ft
2.97 in
75.8 mm
7.58 cm
0.25 ft
2.98 in
Height158.7 mm
15.87 cm
0.52 ft
6.25 in
156.4 mm
15.64 cm
0.51 ft
6.16 in
153.6 mm
15.36 cm
0.5 ft
6.05 in
159 mm
15.9 cm
0.52 ft
6.26 in
Thickness7.3 mm
0.73 cm
0.02 ft
0.29 in
7.5 mm
0.75 cm
0.02 ft
0.3 in
7.9 mm
0.79 cm
0.03 ft
0.31 in
7.9 mm
0.79 cm
0.03 ft
0.31 in
Weight168 g
0.37 lbs
5.93 oz
169 g
0.37 lbs
5.96 oz
168 g
0.37 lbs
5.93 oz
175 g
0.39 lbs
6.17 oz
Volume87.35 cm³
5.3 in³
88.91 cm³
5.4 in³
91.61 cm³
5.56 in³
95.21 cm³
5.78 in³
ColorsBlack
Blue
Gold
Blue
Red
Black
Black
Blue
Red
Violet
Gray
Gold
Silver
Body materialsAluminium alloyGlass
Aluminium alloy
MetalMetal
Glass

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-SIM
Nano-SIM / microSD
Nano-SIMNano-SIM
Nano-SIM / microSD
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)-

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
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
GSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
CDMA-CDMA 800 MHzCDMA 800 MHz-
W-CDMA-W-CDMA 850 MHz
W-CDMA 900 MHz
W-CDMA 1900 MHz
W-CDMA 2100 MHz
--
TD-SCDMA-TD-SCDMA 1900 MHz
TD-SCDMA 2000 MHz
TD-SCDMA 1880-1920 MHz
TD-SCDMA 2010-2025 MHz
-
UMTSUMTS 850 MHz
UMTS 900 MHz
UMTS 1700/2100 MHz
UMTS 1900 MHz
UMTS 2100 MHz
-UMTS 850 MHz
UMTS 900 MHz
UMTS 2100 MHz
UMTS 850 MHz
UMTS 900 MHz
UMTS 1900 MHz
UMTS 2100 MHz
LTELTE 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 2300 MHz (B40)
LTE-TDD 2600 MHz (B38)
LTE 850 MHz
LTE 900 MHz
LTE 1800 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-TDD 2000 MHz (B34)
LTE 850 MHz
LTE 1800 MHz
LTE 2100 MHz
LTE-TDD 1900 MHz (B39)
LTE-TDD 2300 MHz (B40)
LTE-TDD 2500 MHz (B41)
LTE-TDD 2600 MHz (B38)
LTE-TDD 2000 MHz (B34)
LTE 800 MHz
LTE 850 MHz
LTE 900 MHz
LTE 1800 MHz
LTE 1900 MHz
LTE 2100 MHz
LTE 2600 MHz
LTE-TDD 2300 MHz (B40)
LTE-TDD 2600 MHz (B38)

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 12
UMTS
EDGE
GPRS
HSPA+
LTE Cat 18
EV-DO Rev. A
TD-SCDMA
TD-HSDPA
UMTS
EDGE
GPRS
HSPA+
LTE
EV-DO Rev. A
TD-SCDMA
TD-HSDPA
UMTS
EDGE
GPRS
HSPA+
LTE Cat 7

Operating system

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

Operating system (OS)Android 8.1 Oreo
Android 9.0 Pie
MIUI V9.6 (Android 8.1 Oreo)
MIUI V10 (Android 8.1 Oreo)
MIUI V10 (Android 9.0 Pie)
FlyMe (Android 8.1 Oreo)Android 8.1 Oreo

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 660 MSM8976 PlusQualcomm Snapdragon 660 MSM8976 PlusQualcomm Snapdragon 632Qualcomm Snapdragon 660 MSM8976 Plus
Process technology14 nm14 nm14 nm14 nm
CPU4x 2.2 GHz Kryo 260, 4x 1.84 GHz Kryo 2604x 2.2 GHz Kryo 260, 4x 1.84 GHz Kryo 2604x 1.8 GHz Kryo 250, 4x 1.8 GHz Kryo 2504x 2.2 GHz Kryo 260, 4x 1.84 GHz Kryo 260
CPU bits64 bit64 bit64 bit64 bit
Instruction setARMv8ARMv8ARMv8ARMv8
CPU cores8888
CPU frequency2200 MHz2200 MHz1800 MHz2200 MHz
GPUQualcomm Adreno 512Qualcomm Adreno 512Qualcomm Adreno 506Qualcomm Adreno 512
GPU frequency650 MHz---
RAM capacity4 GB
6 GB
4 GB
6 GB
8 GB
4 GB4 GB
RAM typeLPDDR4XLPDDR4XLPDDR3LPDDR4X
RAM channelsDouble channelDouble channelSingle channelDouble channel
RAM frequency1866 MHz1866 MHz-1866 MHz

Storage

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

Storage32 GB
64 GB
128 GB
64 GB
128 GB
64 GB64 GB
eMMC 5.1eMMC 5.1--

Memory cards

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

Types-microSD
microSDHC
microSDXC
-microSD
microSDHC
microSDXC

Display

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

Type/technologyIPSIPSIPSAMOLED
Diagonal size5.99 in
152.15 mm
15.21 cm
6.26 in
159 mm
15.9 cm
6 in
152.4 mm
15.24 cm
6.01 in
152.65 mm
15.27 cm
Width2.68 in
68.04 mm
6.8 cm
2.68 in
68.07 mm
6.81 cm
2.68 in
68.16 mm
6.82 cm
2.69 in
68.27 mm
6.83 cm
Height5.36 in
136.08 mm
13.61 cm
5.66 in
143.7 mm
14.37 cm
5.37 in
136.31 mm
13.63 cm
5.38 in
136.54 mm
13.65 cm
Aspect ratio2:1
2:1 (18:9)
2.111:12:1
2:1 (18:9)
2:1
2:1 (18:9)
Resolution1080 x 2160 pixels1080 x 2280 pixels1080 x 2160 pixels1080 x 2160 pixels
Pixel density403 ppi
158 ppcm
403 ppi
158 ppcm
402 ppi
158 ppcm
402 ppi
158 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area77.63 %82.77 %80.37 %77.59 %
Other featuresCapacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Capacitive
Multi-touch
Scratch resistant
Corning Gorilla Glass 5
2.5D curved glass screen
LTPS (Low Temperature PolySilicon)
1500:1 contrast ratio
500 cd/m²
85% NTSC
Display manufacturer - Tianma
Corning Gorilla Glass
2.5D curved glass screen
1500:1 contrast ratio
470 cd/m²
2.5D curved glass screen
1500:1 contrast ratio
450 cd/m²
83% NTSC
Corning Gorilla Glass 5
Oleophobic (lipophobic) coating
Dolby Vision

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
Fingerprint
Proximity
Light
Accelerometer
Compass
Gyroscope
Fingerprint
Hall
Proximity
Light
Accelerometer
Compass
Fingerprint
Fingerprint sensor model - Fingerprint Cards FPC1028Fingerprint sensor model - Fingerprint Cards FPC1291--

Primary camera

The primary camera of the mobile device is usually placed at its back and is used for taking photos and recording videos.

Sensor modelSony IMX486 Exmor RSSony IMX363 Exmor RSSony IMX362 Exmor RSSony IMX363 Exmor RS
Sensor typeCMOSCMOSCMOSCMOS
ISO-100 - 320050 - 1600-
Aperturef/1.75f/1.9f/1.9f/1.8
Focal length4.07 mm3.94 mm3.94 mm4.36 mm
Flash typeDual LEDDual LEDDual LEDDual LED
Image resolution4000 x 3000 pixels
12 MP
4032 x 3024 pixels
12.19 MP
4000 x 3000 pixels
12 MP
4032 x 3025 pixels
12.2 MP
Video resolution3840 x 2160 pixels
8.29 MP
3840 x 2160 pixels
8.29 MP
1920 x 1080 pixels
2.07 MP
3840 x 2160 pixels
8.29 MP
Video FPS30 fps30 fps30 fps30 fps
FeaturesAutofocus
Continuous shooting
Digital zoom
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
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
RAW
Autofocus
Continuous shooting
Digital zoom
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
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
Sensor size - 1/2.9"
Pixel size - 1.25 μm
Phase detection
720p @ 120 fps
Secondary rear camera - 20 MP
Sensor model - Sony IMX376 Exmor RS (#2)
Sensor type - CMOS BSI (#2)
Sensor size - 1/2.78" (#2)
Pixel size - 2.0 μm (4-in-1 pixel binning) (#2)
Aperture size - f/1.75 (#2)
Sensor size - 1/2.55"
Pixel size - 1.4 μm
Phase detection with Dual Pixel
Focal length (35 mm equivalent) - 24 mm
1080p @ 120 fps
720p @ 240 fps
Secondary rear camera - 5 MP
Sensor model - Samsung S5K5E8 (#2)
Sensor type - CMOS BSI (#2)
Sensor size - 2.9 x 2.15 mm (#2)
Pixel size - 1.12 μm (#2)
Available also with Samsung S5K2L7 (ISOCELL)
Sensor size - 1/2.56"
Pixel size - 1.4 μm
Phase detection with Dual Pixel
6-element lens
Focal length (35 mm equivalent) - 23 mm
Secondary rear camera - 5 MP
4-element lens (#2)
Sensor size - 1/2.55"
Pixel size - 1.4 μm
Phase detection with Dual Pixel
6-element lens
720p @ 120 fps
Focal length (35 mm equivalent) - 25 mm
Secondary rear camera - 8 MP

Secondary camera

Secondary cameras are placed above the screen of the device and are usually used for video calls, gesture recognition, etc.

Sensor modelSony IMX376 Exmor RSSony IMX576 Exmor RS--
Sensor typeCMOS BSI-CMOS-
Aperturef/2.2f/2.2f/2f/2
Focal length3.82 mm3.86 mm2.5 mm-
Flash typeLED---
Image resolution5184 x 3880 pixels
20.11 MP
5760 x 4312 pixels
24.84 MP
3264 x 2448 pixels
7.99 MP
3264 x 2448 pixels
7.99 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
Sensor size - 1/2.78"
Pixel size - 2.0 μm (4-in-1 pixel binning)
HDR
Sensor size - 1/2.8"
Pixel size - 1.8 μm (4-in-1 pixel binning)
Focal length (35 mm equivalent) - 22 mm
Face unlock
4-element lens
Face unlock
Pixel size - 1.4 μm
6-element lens

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 adapter--

Radio

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

RadioNoNoNoYes

Tracking/Positioning

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

Tracking/PositioningGPS
A-GPS
GLONASS
BeiDou
GPS
A-GPS
GLONASS
BeiDou
GPS
A-GPS
GLONASS
BeiDou
GPS
A-GPS
GLONASS
BeiDou
Galileo

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
802.11a
802.11b
802.11g
802.11n
802.11n 5GHz
802.11ac
Dual band
Wi-Fi Hotspot
Wi-Fi Direct
2x2 MiMO2x2 MiMO--

Bluetooth

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

Version5.05.04.25.0
FeaturesA2DP
HID
A2DP
LE
A2DP
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-CMicro USBUSB 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
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 jackNoNoYesYes

Connectivity

Information about other important connectivity technologies supported by the devices.

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

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+
AC3
AMR
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AAC+
AMR
AMR-WB
aptX
aptX HD
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
LDAC
AAC
AMR
FLAC
M4A
MIDI
MP3
OGG
WMA
WAV
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
H.263
H.264
H.265
MKV
MP4
VC-1
VP8
Xvid
3GPP
AVI
DivX
H.263
H.264
H.265
MKV
MP4
VC-1
Xvid
3GPP
AVI
Flash Video
H.263
H.264
MKV
QuickTime
MP4
WMV
Xvid
3GPP
AVI
H.263
H.264
MP4
WMV
Xvid

Battery

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

Capacity3010 mAh3350 mAh3600 mAh3800 mAh
TypeLi-PolymerLi-PolymerLi-IonLi-Polymer
Charger output power5 V / 2 A5 V / 2 A--
Quick charge technologyQualcomm Quick Charge 3.0Qualcomm Quick Charge 3.0mCharge 4.0-
FeaturesFast charging
Non-removable
Fast charging
Non-removable
Fast charging
Non-removable
Non-removable

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)0.963 W/kg0.749 W/kg--
Body SAR (EU)0.639 W/kg1.585 W/kg--
Head SAR (USA)1.16 W/kg1.15 W/kg--
Body SAR (USA)0.66 W/kg1.18 W/kg--

Additional features

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

Additional featuresM1804D2SI - SAR (Specific Absorption Rate) India: head - 1.092 W/kg; body - 0.259 W/kg---
 Xiaomi Mi A2Xiaomi Mi 8 LiteMeizu Note 8General Mobile GM 9 Pro