Comparison between:
- IUNI U3
- IUNI U3 Mini
- Alcatel U3 2018
- Smartisan Nut 3

Brand and model

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

IUNI U3IUNI U3 MiniAlcatel U3 2018Smartisan Nut 3
IUNI U3IUNI U3 MiniAlcatel U3 2018Smartisan Nut 3
Prices
Model alias-U830-U3

Design

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

Width74.9 mm
7.49 cm
0.246 ft
2.949 in
70.5 mm
7.05 cm
0.231 ft
2.776 in
64.4 mm
6.44 cm
0.211 ft
2.535 in
74.3 mm
7.43 cm
0.244 ft
2.925 in
Height145 mm
14.5 cm
0.476 ft
5.709 in
139 mm
13.9 cm
0.456 ft
5.472 in
121.3 mm
12.13 cm
0.398 ft
4.776 in
154 mm
15.4 cm
0.505 ft
6.063 in
Thickness10.3 mm
1.03 cm
0.034 ft
0.406 in
9.5 mm
0.95 cm
0.031 ft
0.374 in
9.7 mm
0.97 cm
0.032 ft
0.382 in
7.16 mm
0.716 cm
0.023 ft
0.282 in
Weight176 g
0.39 lbs
6.21 oz
158 g
0.35 lbs
5.57 oz
103 g
0.23 lbs
3.63 oz
154 g
0.34 lbs
5.43 oz
Volume111.86 cm³
6.79 in³
93.1 cm³
5.65 in³
75.77 cm³
4.6 in³
81.93 cm³
4.98 in³
ColorsBlack
White
Green
White
Pink
Green
Black
Gold
Rose-gold
Blue
Black
Red
Gold
Body materialsMagnesium alloy-PlasticMetal
Glass

SIM card

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

SIM card typeMicro-SIMMicro-SIMMicro-SIMNano-SIM / microSD
Nano-SIM
Number of SIM cards2212
Features-Dual SIM stand-by (Both cards are active. When one is busy, the other is not active)Dual SIM optional (A variant of the model with two SIM card slots is available)-

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 MHz
CDMA 1900 MHz
W-CDMAW-CDMA 850 MHz
W-CDMA 900 MHz
W-CDMA 2100 MHz
W-CDMA 850 MHz
W-CDMA 1900 MHz
W-CDMA 2100 MHz
--
TD-SCDMATD-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 1900 MHz
UMTS 2100 MHz
UMTS 850 MHz
UMTS 900 MHz
UMTS 1900 MHz
UMTS 2100 MHz
LTELTE 1800 MHz
LTE 2600 MHz
LTE-TDD 1900 MHz (B39)
LTE-TDD 2300 MHz (B40)
LTE-TDD 2600 MHz (B38)
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)
-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)

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
TD-SCDMA
TD-HSDPA
UMTS
EDGE
GPRS
HSPA+
LTE
UMTS
EDGE
GPRS
HSPA+
UMTS
EDGE
GPRS
HSPA+
LTE Cat 6
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 4.4.4 KitKat)Android 4.4.4 KitKatAndroidSmartisan 4.x (Android 7.1.2 Nougat)

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 801 MSM8974AAQualcomm Snapdragon 801 MSM8974Pro-AAMediaTek MT6580MQualcomm Snapdragon 625 MSM8953
Process technology28 nm28 nm28 nm14 nm
CPUKrait 400Krait 400ARM Cortex-A7ARM Cortex-A53
CPU bits32 bit32 bit32 bit64 bit
Instruction setARMv7ARMv7ARMv7ARMv8
Level 0 cache memory (L0)4 KB + 4 KB4 KB + 4 KB--
Level 1 cache memory (L1)16 KB + 16 KB16 KB + 16 KB32 KB + 32 KB-
Level 2 cache memory (L2)2048 KB
2 MB
2048 KB
2 MB
512 KB
0.5 MB
-
CPU cores4448
CPU frequency2300 MHz2300 MHz1300 MHz2000 MHz
GPUQualcomm Adreno 330Qualcomm Adreno 330ARM Mali-400 MP2Qualcomm Adreno 506
GPU cores442-
GPU frequency450 MHz578 MHz416 MHz650 MHz
RAM capacity3 GB2 GB512 MB4 GB
RAM typeLPDDR3LPDDR3LPDDR3LPDDR3
RAM channelsDouble channelDouble channelSingle channelSingle channel
RAM frequency800 MHz-533 MHz933 MHz

Storage

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

Storage32 GB32 GB4 GB32 GB
64 GB
128 GB
eMMC---

Memory cards

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

Types--microSD
microSDHC
microSD
microSDHC
microSDXC

Display

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

Type/technologyIPSIPSTFTIPS
Diagonal size5.5 in
139.7 mm
13.97 cm
5.2 in
132.08 mm
13.21 cm
4 in
101.6 mm
10.16 cm
5.99 in
152.15 mm
15.21 cm
Width2.7 in
68.49 mm
6.85 cm
2.55 in
64.75 mm
6.48 cm
2.06 in
52.27 mm
5.23 cm
2.68 in
68.04 mm
6.8 cm
Height4.79 in
121.76 mm
12.18 cm
4.53 in
115.12 mm
11.51 cm
3.43 in
87.12 mm
8.71 cm
5.36 in
136.08 mm
13.61 cm
Aspect ratio1.778:1
16:9
1.778:1
16:9
1.667:1
5:3
2:1
2:1 (18:9)
Resolution1440 x 2560 pixels1080 x 1920 pixels480 x 800 pixels1080 x 2160 pixels
Pixel density534 ppi
209 ppcm
424 ppi
166 ppcm
233 ppi
91 ppcm
403 ppi
158 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area77.03 %76.31 %58.49 %81.18 %
Other featuresCapacitive
Multi-touch
Capacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Capacitive
Multi-touch
Scratch resistant
Corning Gorilla Glass 3
LTPS (Low Temperature PolySilicon)
OGS (One Glass Solution)
Corning Gorilla Glass 3
LTPS (Low Temperature PolySilicon)
OGS (One Glass Solution)
-Corning Gorilla Glass 3
1500:1 contrast ratio
450 cd/m²
85% 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
AccelerometerLight
Accelerometer
Compass
Gyroscope
Fingerprint
Ultrasonic

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 IMX214 Exmor RS---
Sensor typeCMOSCMOSCMOSCMOS
Sensor size4.69 x 3.52 mm
0.23 in
---
Pixel size1.127 µm
0.001127 mm
---
Crop factor7.38---
ISO---100 - 1600
Aperturef/2f/2-f/2.2
Focal length and 35 mm equivalent3.79 mm
27.99 mm *(35 mm / full frame)
---
Number of lenses-62-
Flash typeLEDLEDLEDDual LED
Image resolution4160 x 3120 pixels
12.98 MP
4160 x 3120 pixels
12.98 MP
1600 x 1200 pixels
1.92 MP
4160 x 3120 pixels
12.98 MP
Video resolution1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
1280 x 720 pixels
0.92 MP
3840 x 2160 pixels
8.29 MP
Video FPS30 fps30 fps30 fps30 fps
FeaturesAutofocus
Digital zoom
Optical 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
Optical image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Scene mode
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
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Macro mode
Blue filter glass-Interpolated resolution - 3 MPSecondary rear camera - 13 MP
Blue filter glass

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 typeCMOS BSI--CMOS
Sensor size5.44 x 3.07 mm
0.25 in
---
Pixel size2.024 µm
0.002024 mm
---
Crop factor6.93---
Aperturef/2--f/2.2
Number of lenses--2-
Auxiliary light--LED-
Image resolution2688 x 1520 pixels
4.09 MP
3264 x 2448 pixels
7.99 MP
640 x 480 pixels
0.31 MP
3264 x 2448 pixels
7.99 MP
Video resolution1920 x 1080 pixels
2.07 MP
-640 x 480 pixels
0.31 MP
1280 x 720 pixels
0.92 MP
Video FPS30 fps-30 fps30 fps
Features---Face unlock
--Interpolated resolution - 1.3 MP-

Audio

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

SpeakerLoudspeaker
Earpiece
Loudspeaker
Earpiece
Loudspeaker
Earpiece
Loudspeaker
Earpiece
---Headphone adapter

Radio

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

RadioYesYesYesYes

Tracking/Positioning

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

Tracking/PositioningGPS
A-GPS
GLONASS
BeiDou
GPS
A-GPS
GPS
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-Fi802.11a
802.11b
802.11g
802.11n
802.11ac
Wi-Fi Hotspot
802.11a
802.11b
802.11g
802.11n
802.11ac
Dual band
Wi-Fi Hotspot
802.11b
802.11g
802.11n
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

Bluetooth

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

Version4.04.04.04.2
FeaturesA2DPA2DPA2DPA2DP

USB

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

Connector typeMicro USBMicro USBMicro USBUSB Type-C
Version2.02.02.02.0
FeaturesCharging
Mass storage
On-The-Go
Charging
Mass storage
Charging
Mass storage
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 jackYesYesYesNo

Connectivity

Information about other important connectivity technologies supported by the devices.

ConnectivityComputer sync
OTA sync
Tethering
Computer sync
OTA sync
Tethering
Computer sync
OTA sync
Tethering
Computer sync
OTA sync
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
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
eAAC+
MIDI
MP3
WMA
WAV
AAC
AMR
eAAC+
MIDI
MP3
WMA
WAV
AAC
AAC+
AMR
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AAC+
AMR
AMR-WB
eAAC+
FLAC
M4A
MIDI
MP3
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
MKV
MP4
Xvid
3GPP
AVI
H.263
H.264
MP4
WMV
3GPP
AVI
H.263
H.264
MP4
VP8
3GPP
AVI
H.263
H.264
H.265
MKV
MP4
WebM
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.

Capacity3000 mAh2900 mAh1500 mAh4000 mAh
TypeLi-PolymerLi-PolymerLi-IonLi-Polymer
2G talk time--12 h
720 min
0.5 days
-
2G stand-by time--450 h
27000 min
18.8 days
-
3G talk time--8 h
480 min
0.3 days
-
3G stand-by time--400 h
24000 min
16.7 days
-
Charger output power--5 V / 1 A9 V / 2 A
Quick charge technology---Qualcomm Quick Charge 3.0
FeaturesNon-removableNon-removableRemovableFast charging
Non-removable
 IUNI U3IUNI U3 MiniAlcatel U3 2018Smartisan Nut 3