Comparison between:
- Asus ZenFone 5 ZE620KL
- Cubot S222
- Xiaomi Redmi S2

Brand and model

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

Asus ZenFone 5 ZE620KLCubot S222Xiaomi Redmi S2
Asus ZenFone 5 ZE620KL
Prices
Cubot S222Xiaomi Redmi S2
Prices
Model aliasZE620KL--

Design

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

Width75.65 mm
7.565 cm
0.248 ft
2.978 in
76.5 mm
7.65 cm
0.251 ft
3.012 in
77.26 mm
7.726 cm
0.253 ft
3.042 in
Height153 mm
15.3 cm
0.502 ft
6.024 in
150.7 mm
15.07 cm
0.494 ft
5.933 in
160.73 mm
16.073 cm
0.527 ft
6.328 in
Thickness7.85 mm
0.785 cm
0.026 ft
0.309 in
8 mm
0.8 cm
0.026 ft
0.315 in
8.1 mm
0.81 cm
0.027 ft
0.319 in
Weight155 g
0.34 lbs
5.47 oz
171 g
0.38 lbs
6.03 oz
170 g
0.37 lbs
6 oz
Volume90.86 cm³
5.52 in³
92.23 cm³
5.6 in³
100.59 cm³
6.11 in³
ColorsSilver
Blue
WhiteGold
Silver
Rose-gold
Body materialsMetal
Glass
-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-SIMMini-SIM
Micro-SIM
Nano-SIM
Number of SIM cards222
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)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
CDMA--CDMA 800 MHz
W-CDMA-W-CDMA 850 MHz
W-CDMA 2100 MHz
-
TD-SCDMA--TD-SCDMA 1880-1920 MHz
TD-SCDMA 2010-2025 MHz
UMTSUMTS 800 MHz
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 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 1900 MHz (B39)
LTE-TDD 2300 MHz (B40)
LTE-TDD 2500 MHz (B41)
LTE-TDD 2600 MHz (B38)
LTE 700 MHz (B12)
LTE 800 MHz (B19)
LTE 850 MHz (B26)
LTE 700 MHz (B28)
-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 Cat 13
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)Android 8.0 Oreo
Android 9.0 Pie
Android 4.2.2 Jelly BeanMIUI V9.5 (Android 8.1 Oreo)
MIUI (Android 9.0 Pie)
User interface (UI)ZENUI 5.0--

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 636MediaTek MT6582Qualcomm Snapdragon 625 MSM8953
Process technology14 nm28 nm14 nm
CPU4x 1.8 GHz Kryo 260, 4x 1.6 GHz Kryo 260ARM Cortex-A7ARM Cortex-A53
CPU bits64 bit32 bit64 bit
Instruction setARMv8ARMv7ARMv8
Level 1 cache memory (L1)-32 KB + 32 KB-
Level 2 cache memory (L2)-512 KB
0.5 MB
-
CPU cores848
CPU frequency1800 MHz1300 MHz2000 MHz
GPUQualcomm Adreno 509ARM Mali-400 MP2Qualcomm Adreno 506
GPU cores-2-
GPU frequency-500 MHz650 MHz
RAM capacity4 GB
6 GB
1 GB3 GB
4 GB
RAM typeLPDDR4X-LPDDR3
RAM channelsDouble channelSingle channelSingle channel
RAM frequency1333 MHz533 MHz933 MHz

Storage

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

Storage64 GB16 GB32 GB
64 GB

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/technologyIPSIPSIPS
Diagonal size6.2 in
157.48 mm
15.75 cm
5.5 in
139.7 mm
13.97 cm
5.99 in
152.15 mm
15.21 cm
Width2.69 in
68.25 mm
6.82 cm
2.7 in
68.49 mm
6.85 cm
2.68 in
68.04 mm
6.8 cm
Height5.59 in
141.92 mm
14.19 cm
4.79 in
121.76 mm
12.18 cm
5.36 in
136.08 mm
13.61 cm
Aspect ratio2.08:11.778:1
16:9
2:1
2:1 (18:9)
Resolution1080 x 2246 pixels720 x 1280 pixels720 x 1440 pixels
Pixel density402 ppi
158 ppcm
267 ppi
104 ppcm
269 ppi
105 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area83.95 %72.57 %74.8 %
Other featuresCapacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Capacitive
Multi-touch
Corning Gorilla Glass 3
2.5D curved glass screen
Bluelight Filter
1500:1 contrast ratio
500 cd/m²
95.4% NTSC
OGS (One Glass Solution)1000:1 contrast ratio
450 cd/m²
70.8 % NTSC

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
Compass
Gyroscope
Gravity
Proximity
Light
Accelerometer
Compass
Gyroscope
Fingerprint
--Fingerprint sensor model - Fingerprint Cards FPC1028

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 IMX363 Exmor RS-Sony IMX486 Exmor RS
Sensor typeCMOS-CMOS
Sensor format1/2.55"-1/2.9"
Pixel size1.4 µm
0.001400 mm
-1.25 µm
0.001250 mm
ISO--100 - 3200
Aperturef/1.8-f/2.2
Focal length and 35 mm equivalent3.94 mm
24 mm *(35 mm / full frame)
-3.84 mm
Number of lenses6-5
Flash typeDual LEDLEDLED
Image resolution4032 x 3024 pixels
12.19 MP
4096 x 3072 pixels
12.58 MP
4000 x 3000 pixels
12 MP
Video resolution3840 x 2160 pixels
8.29 MP
1280 x 720 pixels
0.92 MP
1920 x 1080 pixels
2.07 MP
Video FPS30 fps30 fps30 fps
FeaturesAutofocus
Continuous shooting
Digital zoom
Digital image stabilization
Optical 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)
Autofocus
Geotagging
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)
Phase detection with Dual Pixel
4-axis; 4 stops OIS
3-axis EIS
1080p @ 120 fps
720p @ 240 fps
Secondary rear camera - 8 MP
Sensor model - OmniVision OV8856 (#2)
Sensor type - PureCel (#2)
Sensor size - 3.6783 x 2.76768 mm (#2)
Aperture size - f/2.0 (#2)
Focal length (35 mm equivalent) - 12 mm (#2)
Angle of view - 120° (#2)
-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)

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-Samsung S5K3P8SP
Sensor typePureCel-ISOCELL
Sensor size3.68 x 2.77 mm
0.18 in
--
Sensor format--1/3.1"
Pixel size1.127 µm
0.001127 mm
-1 µm
0.001000 mm
Crop factor9.4--
Aperturef/2-f/2
Focal length and 35 mm equivalent2.47 mm
23.22 mm *(35 mm / full frame)
-3.52 mm
Field of view84 °--
Auxiliary light--LED
Image resolution3264 x 2448 pixels
7.99 MP
3264 x 2448 pixels
7.99 MP
4608 x 3456 pixels
15.93 MP
Video resolution1920 x 1080 pixels
2.07 MP
-1920 x 1080 pixels
2.07 MP
Video FPS30 fps-30 fps
FeaturesFace unlock-Face unlock
OIS--

Audio

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

SpeakerLoudspeaker
Earpiece
Stereo speakers
Loudspeaker
Earpiece
Loudspeaker
Earpiece
DTS
Hi-Res Audio
192 kHz / 24-bit
NXP Smart PA
--

Radio

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

RadioYesYesYes

Tracking/Positioning

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

Tracking/PositioningGPS
A-GPS
GLONASS
BeiDou
GPS
A-GPS
EPO
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
802.11n 5GHz
802.11ac
Dual band
Wi-Fi Hotspot
Wi-Fi Direct
802.11b
802.11g
802.11n
Wi-Fi Hotspot
802.11b
802.11g
802.11n
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.

Version5.02.04.2
FeaturesA2DP
AVRCP
EDR
GAP
HDP
HFP
HSP
MAP
OPP
PBAP
A2DPA2DP
HID

USB

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

Connector typeUSB Type-CMicro USBMicro USB
Version2.02.02.0
FeaturesCharging
Mass storage
On-The-Go
Charging
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 jackYesYesYes

Connectivity

Information about other important connectivity technologies supported by the devices.

ConnectivityComputer sync
OTA sync
Tethering
NFC
VoLTE
Computer 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
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
aptX
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AMR
AMR-WB
MIDI
MP3
OGG
WMA
WAV
AAC
AAC+
AC3
AMR
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
DivX
Flash Video
H.263
H.264
MKV
QuickTime
MP4
WebM
WMV
Xvid
3GPP
AVI
MKV
QuickTime
MPEG-4
3GPP
AVI
H.263
H.264
MKV
MP4
VC-1
VP8
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 mAh2350 mAh3080 mAh
TypeLi-PolymerLi-IonLi-Polymer
Charger output power5 V / 2 A
9 V / 2 A
-5 V / 2 A
FeaturesFast charging
Non-removable
RemovableNon-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)1.2 W/kg-0.429 W/kg
Body SAR (EU)1.477 W/kg-1.577 W/kg
Head SAR (USA)1.04 W/kg-0.89 W/kg
Body SAR (USA)0.37 W/kg-1.43 W/kg
 Asus ZenFone 5 ZE620KLCubot S222Xiaomi Redmi S2