Comparison between:
- UMIDIGI A3 Pro
- IUNI i1

Brand and model

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

UMIDIGI A3 ProIUNI i1
UMIDIGI A3 Pro
Prices
IUNI i1
Model aliasA3Pro-

Design

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

Width70.2 mm
7.02 cm
0.23 ft
2.764 in
70.3 mm
7.03 cm
0.231 ft
2.768 in
Height147.2 mm
14.72 cm
0.483 ft
5.795 in
139 mm
13.9 cm
0.456 ft
5.472 in
Thickness8.5 mm
0.85 cm
0.028 ft
0.335 in
9.5 mm
0.95 cm
0.031 ft
0.374 in
Weight185 g
0.41 lbs
6.53 oz
160 g
0.35 lbs
5.64 oz
Volume87.83 cm³
5.33 in³
92.83 cm³
5.64 in³
ColorsGray
Gold
White
Body materialsMetal
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-SIMMicro-SIM
Number of SIM cards22
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
W-CDMAW-CDMA 850 MHz
W-CDMA 900 MHz
W-CDMA 1700 MHz
W-CDMA 1900 MHz
W-CDMA 2100 MHz
W-CDMA 850 MHz
W-CDMA 900 MHz
W-CDMA 1900 MHz
TD-SCDMA-TD-SCDMA 1880-1920 MHz
TD-SCDMA 2010-2025 MHz
LTELTE 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 2300 MHz (B40)
LTE-TDD 2500 MHz (B41)
LTE-TDD 2600 MHz (B38)
LTE 700 MHz (B12)
LTE 800 MHz (B19)
LTE 1800 MHz
LTE 2600 MHz
LTE-TDD 1900 MHz (B39)
LTE-TDD 2300 MHz (B40)
LTE-TDD 2500 MHz (B41)
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 4
UMTS
EDGE
GPRS
HSPA+
LTE
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 8.1 OreoIUNI

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.

SoCMediaTek MT6739Qualcomm Snapdragon 801 MSM8974AA
Process technology28 nm28 nm
CPUARM Cortex-A53Krait 400
CPU bits64 bit32 bit
Instruction setARMv8-AARMv7
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 cores44
CPU frequency1500 MHz2300 MHz
GPUPowerVR GE8100Qualcomm Adreno 330
GPU cores-4
GPU frequency570 MHz450 MHz
RAM capacity3 GB2 GB
RAM typeLPDDR3LPDDR3
RAM channelsSingle channelDouble channel
RAM frequency667 MHz800 MHz

Storage

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

Storage32 GB32 GB
eMMC 5.1-

Memory cards

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

TypesmicroSD
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 size5.7 in
144.78 mm
14.48 cm
5.2 in
132.08 mm
13.21 cm
Width2.45 in
62.25 mm
6.22 cm
2.55 in
64.75 mm
6.48 cm
Height5.15 in
130.72 mm
13.07 cm
4.53 in
115.12 mm
11.51 cm
Aspect ratio2.1:11.778:1
16:9
Resolution720 x 1512 pixels1080 x 1920 pixels
Pixel density294 ppi
115 ppcm
424 ppi
166 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
Display area78.99 %76.53 %
Other featuresCapacitive
Multi-touch
Capacitive
Multi-touch
Scratch resistant
2.5D curved glass screenLTPS (Low Temperature PolySilicon)
OGS (One Glass Solution)

Sensors

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

SensorsProximity
Light
Accelerometer
Compass
Gyroscope
Fingerprint
Proximity
Light
Accelerometer

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 OV12870-
Sensor typePureCelCMOS
Pixel size1.25 µm
0.001250 mm
-
ISO100 - 1600-
Aperturef/2f/2
Focal length and 35 mm equivalent3.5 mm28 mm *(35 mm / full frame)
Number of lenses66
Flash typeDual LEDLED
Image resolution3968 x 2976 pixels
11.81 MP
4160 x 3120 pixels
12.98 MP
Video resolution1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
Video 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
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
Available also with Sony IMX386 Exmor RS (CMOS)
Secondary rear camera - 5 MP
-

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 modelOmniVision OV8856-
Sensor typePureCel-
Sensor size3.68 x 2.77 mm
0.18 in
-
Pixel size1.127 µm
0.001127 mm
-
Crop factor9.4-
Aperturef/2-
Focal length and 35 mm equivalent3.5 mm
32.9 mm *(35 mm / full frame)
-
Field of view-85 °
Image resolution3264 x 2448 pixels
7.99 MP
3264 x 2448 pixels
7.99 MP
Video resolution1280 x 720 pixels
0.92 MP
-
Video FPS30 fps-
FeaturesFace unlock-

Audio

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

SpeakerLoudspeaker
Earpiece
Loudspeaker
Earpiece

Radio

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

RadioYesYes

Tracking/Positioning

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

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

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
Dual band
Wi-Fi Hotspot
Wi-Fi Direct
Wi-Fi Display
802.11a
802.11b
802.11g
802.11n
802.11ac
Wi-Fi Hotspot

Bluetooth

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

Version4.04.0
FeaturesA2DPA2DP

USB

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

Connector typeMicro USBMicro USB
Version2.02.0
FeaturesCharging
Mass storage
On-The-Go
Charging
Mass storage

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
VoLTE
Computer sync
OTA sync
Tethering

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
AAC+
AMR
AMR-WB
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AAC+
AMR
eAAC+
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
MKV
MP4
WebM
Xvid
3GPP
AVI
H.263
H.264
H.265
MP4
VC-1
VP8
WMV
WMV9
Xvid

Battery

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

Capacity3300 mAh3000 mAh
TypeLi-PolymerLi-Polymer
Charger output power5 V / 1 A5 V / 1 A
FeaturesNon-removableNon-removable
 UMIDIGI A3 ProIUNI i1