Comparison between:
- nubia M2
- nubia M2 Lite
- Xiaomi Redmi Note 7

Brand and model

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

nubia M2nubia M2 LiteXiaomi Redmi Note 7
nubia M2
Prices
nubia M2 Lite
Prices
Xiaomi Redmi Note 7
Prices
Model aliasNX551JM2 Youth
NX573J
Redmi Note7
Red Rice Note 7
Red Rice Note7

Design

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

Width75.9 mm
7.59 cm
0.25 ft
2.99 in
76.7 mm
7.67 cm
0.25 ft
3.02 in
75.21 mm
7.52 cm
0.25 ft
2.96 in
Height154.5 mm
15.45 cm
0.51 ft
6.08 in
155.73 mm
15.57 cm
0.51 ft
6.13 in
159.21 mm
15.92 cm
0.52 ft
6.27 in
Thickness7 mm
0.7 cm
0.02 ft
0.28 in
7.5 mm
0.75 cm
0.02 ft
0.3 in
8.1 mm
0.81 cm
0.03 ft
0.32 in
Weight168 g
0.37 lbs
5.93 oz
164 g
0.36 lbs
5.78 oz
186 g
0.41 lbs
6.56 oz
Volume82.09 cm³
4.99 in³
89.58 cm³
5.44 in³
96.99 cm³
5.89 in³
ColorsBlack
Champagne
Black
Champagne
Blue
Red
Black
Body materialsMetalMetalGlass
Plastic

SIM card

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

SIM card typeNano-SIM
Nano-SIM / microSD
Nano-SIM
Nano-SIM / microSD
Nano-SIM
Nano-SIM / microSD
Number of SIM cards222

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
CDMACDMA 800 MHzCDMA 800 MHzCDMA 800 MHz
W-CDMA--W-CDMA 850 MHz
W-CDMA 900 MHz
W-CDMA 1900 MHz
W-CDMA 2100 MHz
TD-SCDMATD-SCDMA 1880-1920 MHz
TD-SCDMA 2010-2025 MHz
TD-SCDMA 1880-1920 MHz
TD-SCDMA 2010-2025 MHz
TD-SCDMA 1900 MHz
TD-SCDMA 2000 MHz
UMTSUMTS 850 MHz
UMTS 900 MHz
UMTS 1900 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 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 800 MHz
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 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)

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 6
EV-DO Rev. A
TD-SCDMA
TD-HSDPA
UMTS
EDGE
GPRS
HSPA+
LTE Cat 4
EV-DO Rev. A
TD-SCDMA
TD-HSDPA
UMTS
EDGE
GPRS
HSPA+
LTE Cat 18
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)Android 6.0 Marshmallow
Android 7.0 Nougat
Android 7.0 NougatMIUI V10.2 (Android 9.0 Pie)
User interface (UI)nubia 4.0
nubia 4.5
nubia 4.0-

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 625 MSM8953MediaTek MT6750Qualcomm Snapdragon 660 MSM8976 Plus
Process technology14 nm28 nm14 nm
CPUARM Cortex-A534x 1.5 GHz ARM Cortex-A53, 4x 1.0 GHz ARM Cortex-A534x 2.2 GHz Kryo 260, 4x 1.84 GHz Kryo 260
CPU bits64 bit64 bit64 bit
Instruction setARMv8ARMv8-AARMv8
Level 1 cache memory (L1)-32 KB + 32 KB-
Level 2 cache memory (L2)-512 KB
0.5 MB
-
CPU cores888
CPU frequency2000 MHz1500 MHz2200 MHz
GPUQualcomm Adreno 506ARM Mali-T860 MP2Qualcomm Adreno 512
GPU cores-2-
GPU frequency-520 MHz-
RAM capacity4 GB3 GB
4 GB
3 GB
4 GB
6 GB
RAM typeLPDDR3LPDDR3LPDDR4X
RAM channelsSingle channelSingle channelDouble channel
RAM frequency933 MHz667 MHz1866 MHz

Storage

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

Storage64 GB
128 GB
32 GB
64 GB
32 GB
64 GB
128 GB
eMMC 5.1eMMC 5.1eMMC 5.1

Memory cards

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

TypesmicroSD
microSDHC
microSDXC
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/technologyAMOLEDIPSIPS
Diagonal size5.5 in
139.7 mm
13.97 cm
5.5 in
139.7 mm
13.97 cm
6.3 in
160.02 mm
16 cm
Width2.7 in
68.49 mm
6.85 cm
2.7 in
68.49 mm
6.85 cm
2.64 in
67.06 mm
6.71 cm
Height4.79 in
121.76 mm
12.18 cm
4.79 in
121.76 mm
12.18 cm
5.72 in
145.29 mm
14.53 cm
Aspect ratio1.778:1
16:9
1.778:1
16:9
2.167:1
Resolution1080 x 1920 pixels720 x 1280 pixels1080 x 2340 pixels
Pixel density401 ppi
157 ppcm
267 ppi
104 ppcm
409 ppi
160 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area71.34 %70.04 %81.63 %
Other featuresCapacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Capacitive
Multi-touch
Scratch resistant
Corning Gorilla Glass
2.5D curved glass screen
90% NTSC
2.5D curved glass screen
GFF full lamination
80% NTSC
Display manufacturer - Tianma
Corning Gorilla Glass 5
2.5D curved glass screen
LTPS (Low Temperature PolySilicon)
1500:1 contrast ratio
450 cd/m²
84% NTSC

Sensors

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

SensorsProximity
Light
Accelerometer
Compass
Gyroscope
Fingerprint
Hall
Proximity
Light
Accelerometer
Compass
Fingerprint
Proximity
Light
Accelerometer
Compass
Gyroscope
Fingerprint
--Fingerprint sensor model - Fingerprint Cards FPC1511

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 Exmor RSSony Exmor RSSamsung S5KGM1
Sensor typeCMOSCMOS-
Sensor format--1/2"
Pixel size--0.8 µm
0.000800 mm
ISO--100 - 3200
Aperturef/2.2f/2.2f/1.79
Focal length and 35 mm equivalent3.5 mm-4.74 mm
Number of lenses556
Flash typeDual LEDDual LEDDual LED
Image resolution4160 x 3120 pixels
12.98 MP
4160 x 3120 pixels
12.98 MP
8000 x 6000 pixels
48 MP
Video resolution3840 x 2160 pixels
8.29 MP
1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
Video FPS30 fps30 fps60 fps
FeaturesAutofocus
Continuous shooting
Digital zoom
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Phase detection autofocus (PDAF)
Contrast detection autofocus (CDAF)
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
RAW
Phase detection autofocus (PDAF)
Blue filter glass
Secondary rear camera - 13 MP (monochrome)
Aperture size - f/2.2 (#2)
Sapphire crystal glass lens cover
Blue filter glassPixel size - 1.6 μm (4-in-1 pixel binning)
Sensor type - ISOCELL PLUS
Phase detection with Dual Pixel
1080p @ 120 fps
720p @ 120 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)
Aperture size - f/2.0 (#2)

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 modelSamsungSamsungOmniVision OV13855
Sensor typeISOCELLISOCELLPureCel
Sensor size--4.75 x 3.54 mm
0.23 in
Pixel size2 µm
0.002000 mm
2 µm
0.002000 mm
1.124 µm
0.001124 mm
Crop factor--7.31
Aperturef/2f/2f/2
Focal length and 35 mm equivalent3.8 mm-3.86 mm
28.21 mm *(35 mm / full frame)
Field of view80 °80 °-
Number of lenses55-
Image resolution4608 x 3456 pixels
15.93 MP
4608 x 3456 pixels
15.93 MP
4224 x 3136 pixels
13.25 MP
Video resolution1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
Video FPS30 fps30 fps30 fps
Features--Face unlock
Blue filter glassBlue filter glass-

Audio

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

SpeakerLoudspeaker
Earpiece
Loudspeaker
Earpiece
Loudspeaker
Earpiece
Dolby Surround 7.1
DTS
Smart PA
Texas Instruments TAS2555
Awinic AW8738
DTS
Smart PA

Radio

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

Radio--Yes

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

Wi-Fi

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

Wi-Fi802.11b
802.11g
802.11n
802.11n 5GHz
802.11ac
Dual band
Wi-Fi Hotspot
802.11b
802.11g
802.11n
802.11n 5GHz
802.11ac
Dual band
Wi-Fi Hotspot
802.11a
802.11b
802.11g
802.11n
802.11n 5GHz
802.11ac
Dual band
Wi-Fi Hotspot
Wi-Fi Direct
Wi-Fi Display

Bluetooth

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

Version4.14.15.0
FeaturesA2DP
LE
A2DP
LE
A2DP
LE

USB

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

Connector typeUSB Type-CMicro USBUSB Type-C
Version2.02.02.0
FeaturesCharging
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 jackYesYesYes

Connectivity

Information about other important connectivity technologies supported by the devices.

ConnectivityComputer sync
OTA sync
Tethering
VoLTE
Computer sync
OTA sync
Tethering
VoLTE
Computer sync
OTA sync
Infrared
Tethering
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

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
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AAC+
AMR
AMR-WB
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AAC+
AMR
AMR-WB
aptX
aptX HD
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
LDAC

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
MKV
MP4
WebM
WMV
Xvid
3GPP
AVI
H.263
H.264
MKV
MP4
WebM
WMV
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.

Capacity3630 mAh3000 mAh4000 mAh
TypeLi-PolymerLi-PolymerLi-Polymer
2G talk time--23 h
1380 min
1 days
2G stand-by time--251 h
15060 min
10.5 days
3G talk time--23 h
1380 min
1 days
3G stand-by time--251 h
15060 min
10.5 days
Charger output power5 V / 5.2 A-5 V / 2 A
Quick charge technology--Qualcomm Quick Charge 4.0
FeaturesFast charging
Non-removable
Fast charging
Non-removable
Fast charging
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)--0.591 W/kg
Body SAR (EU)--1.274 W/kg
Head SAR (USA)--1.19 W/kg
Body SAR (USA)--1.18 W/kg
 nubia M2nubia M2 LiteXiaomi Redmi Note 7