Comparison between:
- IUNI U2
- Xiaomi Redmi Note 7

Brand and model

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

IUNI U2Xiaomi Redmi Note 7
IUNI U2Xiaomi Redmi Note 7
Prices
Model aliasU810Redmi 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.

Width65 mm
6.5 cm
0.213 ft
2.559 in
75.21 mm
7.521 cm
0.247 ft
2.961 in
Height136.9 mm
13.69 cm
0.449 ft
5.39 in
159.21 mm
15.921 cm
0.522 ft
6.268 in
Thickness10.2 mm
1.02 cm
0.033 ft
0.402 in
8.1 mm
0.81 cm
0.027 ft
0.319 in
Weight145 g
0.32 lbs
5.11 oz
186 g
0.41 lbs
6.56 oz
Volume90.76 cm³
5.51 in³
96.99 cm³
5.89 in³
ColorsBlack
Silver
Green
Blue
Red
Black
Body materialsAluminium alloyGlass
Plastic

SIM card

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

SIM card typeMicro-SIMNano-SIM
Nano-SIM / microSD
Number of SIM cards12

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
CDMA-CDMA 800 MHz
W-CDMAW-CDMA 900 MHz
W-CDMA 2100 MHz
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
LTE-LTE-TDD 1900 MHz (B39)
LTE-TDD 2000 MHz (B34)
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

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+
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)IUNI (Android 4.3 Jelly Bean)MIUI V10.2 (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 800 MSM8974AAQualcomm Snapdragon 660 MSM8976 Plus
Process technology28 nm14 nm
CPUKrait 4004x 2.2 GHz Kryo 260, 4x 1.84 GHz Kryo 260
CPU bits32 bit64 bit
Instruction setARMv7ARMv8
Level 0 cache memory (L0)4 KB + 4 KB-
Level 1 cache memory (L1)16 KB + 16 KB-
Level 2 cache memory (L2)2048 KB
2 MB
-
CPU cores48
CPU frequency2200 MHz2200 MHz
GPUQualcomm Adreno 330Qualcomm Adreno 512
GPU cores4-
GPU frequency450 MHz-
RAM capacity2 GB
3 GB
3 GB
4 GB
6 GB
RAM typeLPDDR3LPDDR4X
RAM channelsDouble channelDouble channel
RAM frequency800 MHz1866 MHz

Storage

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

Storage16 GB
32 GB
32 GB
64 GB
128 GB
-eMMC 5.1

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/technologyIPSIPS
Diagonal size4.7 in
119.38 mm
11.94 cm
6.3 in
160.02 mm
16 cm
Width2.3 in
58.53 mm
5.85 cm
2.64 in
67.06 mm
6.71 cm
Height4.1 in
104.05 mm
10.4 cm
5.72 in
145.29 mm
14.53 cm
Aspect ratio1.778:1
16:9
2.167:1
Resolution1080 x 1920 pixels1080 x 2340 pixels
Pixel density469 ppi
184 ppcm
409 ppi
160 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
Display area68.66 %81.63 %
Other featuresCapacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Scratch resistant
Corning Gorilla Glass 3
LTPS (Low Temperature PolySilicon)
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
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 modelOmniVision OV16825Samsung S5KGM1
Sensor typeCMOS BSI 2-
Sensor size6.24 x 4.67 mm
0.31 in
-
Sensor format-1/2"
Pixel size1.354 µm
0.001354 mm
0.8 µm
0.000800 mm
Crop factor5.55-
ISO100 - 1600100 - 3200
Aperturef/2.2f/1.79
Focal length and 35 mm equivalent5.45 mm
30.25 mm *(35 mm / full frame)
4.74 mm
Number of lenses-6
Flash typeLEDDual LED
Image resolution4608 x 3456 pixels
15.93 MP
8000 x 6000 pixels
48 MP
Video resolution1920 x 1080 pixels
2.07 MP
3840 x 2160 pixels
8.29 MP
Video FPS60 fps30 fps
FeaturesAutofocus
Continuous shooting
Digital zoom
Digital image stabilization
Geotagging
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Macro 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
Phase detection autofocus (PDAF)
RAW
-Pixel 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 model-OmniVision OV13855
Sensor typeCMOS BSIPureCel
Sensor size5.44 x 3.07 mm
0.25 in
4.75 x 3.54 mm
0.23 in
Pixel size2.024 µm
0.002024 mm
1.124 µm
0.001124 mm
Crop factor6.937.31
Aperturef/2f/2
Focal length and 35 mm equivalent-3.86 mm
28.21 mm *(35 mm / full frame)
Image resolution2688 x 1520 pixels
4.09 MP
4224 x 3136 pixels
13.25 MP
Video resolution1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
Video FPS30 fps30 fps
Features-Face unlock

Audio

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

SpeakerLoudspeaker
Earpiece
Loudspeaker
Earpiece
-Smart PA

Radio

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

RadioNoYes

Tracking/Positioning

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

Tracking/PositioningGPS
A-GPS
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
802.11ac
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.

Version4.05.0
FeaturesA2DPA2DP
LE

USB

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

Connector typeMicro USBUSB Type-C
Version2.02.0
FeaturesCharging
Mass storage
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 jackYesYes

Connectivity

Information about other important connectivity technologies supported by the devices.

ConnectivityComputer sync
OTA sync
Tethering
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

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
AMR
eAAC+
MP3
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
H.263
H.264
MPEG-4
WMV
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.

Capacity2200 mAh4000 mAh
TypeLi-PolymerLi-Polymer
2G talk time9 h
540 min
0.4 days
23 h
1380 min
1 days
2G stand-by time220 h
13200 min
9.2 days
251 h
15060 min
10.5 days
3G talk time9 h
540 min
0.4 days
23 h
1380 min
1 days
3G stand-by time220 h
13200 min
9.2 days
251 h
15060 min
10.5 days
Charger output power-5 V / 2 A
Quick charge technology-Qualcomm Quick Charge 4.0
FeaturesNon-removableFast 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
 IUNI U2Xiaomi Redmi Note 7