Comparison between:
- Cubot P40
- Xiaomi Redmi 8
- Alcatel 3X (2020)

Brand and model

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

Cubot P40Xiaomi Redmi 8Alcatel 3X (2020)
Cubot P40
Prices
Xiaomi Redmi 8
Prices
Alcatel 3X (2020)
Model alias-Redmi8
Red Rice 8
Red Rice8
M1908C3IC
MZB8257IN; M1908C3II
M1908C3IG
M1908C3IH
-

Design

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

Width73 mm
7.3 cm
0.24 ft
2.874 in
75.41 mm
7.541 cm
0.247 ft
2.969 in
75.8 mm
7.58 cm
0.249 ft
2.984 in
Height155 mm
15.5 cm
0.509 ft
6.102 in
156.48 mm
15.648 cm
0.513 ft
6.161 in
164.85 mm
16.485 cm
0.541 ft
6.49 in
Thickness10 mm
1 cm
0.033 ft
0.394 in
9.4 mm
0.94 cm
0.031 ft
0.37 in
8.39 mm
0.839 cm
0.028 ft
0.33 in
Weight184 g
0.41 lbs
6.49 oz
188 g
0.41 lbs
6.63 oz
178 g
0.39 lbs
6.28 oz
Volume113.15 cm³
6.87 in³
110.92 cm³
6.74 in³
104.84 cm³
6.37 in³
ColorsGreen
Blue
Black
Onyx Black
Ruby Red
Sapphire Blue
Jewelry Black
Jewelry Green
Jewelry Rose
Body materialsPlastic
Metal
PlasticAluminium alloy
Glass

SIM card

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

SIM card typeNano-SIMNano-SIMNano-SIM / microSD
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)-

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 (B5)
GSM 900 MHz (B8)
GSM 1800 MHz (B3)
GSM 1900 MHz (B2)
GSM 850 MHz (B5)
GSM 900 MHz (B8)
GSM 1800 MHz (B3)
GSM 1900 MHz (B2)
GSM 850 MHz (B5)
GSM 900 MHz (B8)
GSM 1800 MHz (B3)
GSM 1900 MHz (B2)
CDMA-CDMA 800 MHz (BC0)
CDMA 1900 MHz (BC1)
-
W-CDMAW-CDMA 900 MHz (B8)
W-CDMA 2100 MHz (B1)
W-CDMA 850 MHz (B5)
W-CDMA 900 MHz (B8)
W-CDMA 1900 MHz (B2)
W-CDMA 2100 MHz (B1)
-
TD-SCDMA-TD-SCDMA 2000 MHz-
UMTS--UMTS 850 MHz (B5)
UMTS 900 MHz (B8)
UMTS 1900 MHz (B2)
UMTS 2100 MHz (B1)
LTELTE-FDD 800 MHz (B20)
LTE-FDD 850 MHz (B19)
LTE-FDD 900 MHz (B8)
LTE-FDD 1800 MHz (B3)
LTE-FDD 2100 MHz (B1)
LTE-FDD 2600 MHz (B7)
LTE-FDD 850 MHz (B5)
LTE-FDD 900 MHz (B8)
LTE-FDD 1800 MHz (B3)
LTE-FDD 2100 MHz (B1)
LTE-TDD 2300 MHz (B40)
LTE-TDD 2500 MHz (B41)
LTE-FDD 800 MHz (B20)
LTE-FDD 900 MHz (B8)
LTE-FDD 1800 MHz (B3)
LTE-FDD 2100 MHz (B1)
LTE-FDD 2600 MHz (B7)

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
UMTS
EDGE
GPRS
HSPA+
LTE
UMTS
EDGE
GPRS
HSPA+
LTE Cat 4

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 10MIUI 10 (Android 9.0 Pie)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.

SoCMediaTek Helio A20 (MT6761D)Qualcomm Snapdragon 439MediaTek Helio P23 (MT6763V)
Process technology12 nm12 nm16 nm
CPU4x 1.8 GHz ARM Cortex-A534x 1.95 GHz ARM Cortex-A53, 4x 1.45 GHz ARM Cortex-A534x 2.0 GHz ARM Cortex-A53, 4x 1.5 GHz ARM Cortex-A53
CPU bits64 bit64 bit64 bit
Instruction setARMv8-AARMv8ARMv8-A
CPU cores488
CPU frequency1800 MHz1950 MHz2000 MHz
GPUPowerVR GE8300Qualcomm Adreno 505ARM Mali-G71 MP2
GPU cores--2
GPU frequency500 MHz650 MHz700 MHz
RAM capacity4 GB3 GB
4 GB
4 GB
RAM type-LPDDR3-
RAM channels-Single channel-
RAM frequency-933 MHz-

Storage

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

Storage128 GB32 GB
64 GB
64 GB
-eMMC 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/technologyIPSIPSIPS
Diagonal size6.2 in
157.48 mm
15.75 cm
6.22 in
157.99 mm
15.8 cm
6.52 in
165.61 mm
16.56 cm
Width2.65 in
67.42 mm
6.74 cm
2.66 in
67.63 mm
6.76 cm
2.68 in
67.96 mm
6.8 cm
Height5.6 in
142.32 mm
14.23 cm
5.62 in
142.78 mm
14.28 cm
5.95 in
151.02 mm
15.1 cm
Aspect ratio2.111:12.111:12.222:1
Resolution720 x 1520 pixels720 x 1520 pixels720 x 1600 pixels
Pixel density271 ppi
106 ppcm
270 ppi
106 ppcm
269 ppi
105 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area85.07 %82.1 %82.4 %
Other featuresCapacitive
Multi-touch
Capacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
2.5D curved glass screen
In-cell
In-cell
2.5D curved glass screen
Corning Gorilla Glass 5
1500:1
70.8% NTSC
2.5D curved glass screen

Sensors

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

SensorsProximity
Light
Accelerometer
Compass
Fingerprint
Proximity
Light
Accelerometer
Compass
Fingerprint
Proximity
Light
Accelerometer
Fingerprint

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 model-Sony IMX363 Exmor RS-
Sensor typeCMOSCMOS-
Sensor format-1/2.55"1/2.8"
Pixel size-1.4 µm
0.001400 mm
-
Aperture-f/1.8f/1.8
Number of lenses-6-
Flash typeLEDDual LEDDual LED
Image resolution4032 x 3120 pixels
12.58 MP
4032 x 3024 pixels
12.19 MP
4608 x 3456 pixels
15.93 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
FeaturesAutofocus
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
Phase detection autofocus (PDAF)
Autofocus
Continuous shooting
Digital image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Google Lens
Night Mode
Second rear camera - 5 MP (macro)
Third rear camera - 0.3 MP (depth-sensing)
Phase detection with Dual Pixel
Secondary rear camera - 2 MP (depth-sensing)
Pixel size - 1.12 µm
Secondary rear camera - 8MP (ultra-wide)
Sensor size - 1/4" (#2)
Pixel size - 1.12 µm (#2)
Aperture - f/2.2 (#2)
Angle of view - 118° (#2)
Third rear camera - 5MP (depth-sensing)
Sensor size - 1/5" (#2)
Pixel size - 1.12 µm (#2)
Aperture - f/2.4 (#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 modelSony IMX350--
Sensor typeCMOS--
Sensor format1/2.8"-1/4"
Pixel size1 µm
0.001000 mm
1.12 µm
0.001120 mm
1.12 µm
0.001120 mm
Aperturef/2.2f/2f/2
Focal length and 35 mm equivalent3.8 mm--
Field of view77 °--
Image resolution20 MP3264 x 2448 pixels
7.99 MP
3264 x 2448 pixels
7.99 MP
Video resolution1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
1280 x 720 pixels
0.92 MP
Video FPS30 fps30 fps30 fps
FeaturesFace unlockFace unlockFace unlock

Audio

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

SpeakerLoudspeaker
Earpiece
Loudspeaker
Earpiece
Loudspeaker
Earpiece
-Smart PAHD Voice
Audio amplifier
Dual microphone noise cancellation

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
GPS
A-GPS
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
802.11b
802.11g
802.11n
Wi-Fi Hotspot
Wi-Fi Direct
802.11b
802.11g
802.11n
Wi-Fi Hotspot
Wi-Fi Direct

Bluetooth

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

Version4.24.24.2
FeaturesA2DPA2DP
LE
A2DP

USB

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

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

Connectivity

Information about other important connectivity technologies supported by the devices.

ConnectivityComputer sync
OTA sync
Tethering
NFC
VoLTE
Computer sync
OTA sync
Infrared
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
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+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AAC+
AMR
AMR-WB
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AAC+
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
H.263
H.264
MKV
MP4
WebM
WMV
Xvid
3GPP
AVI
DivX
H.263
H.264
H.265
MKV
MP4
VC-1
Xvid
3GPP
AVI
MP4
VP8

Battery

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

Capacity4200 mAh5000 mAh4000 mAh
TypeLi-PolymerLi-PolymerLi-Ion
2G talk time--30 h
1800 min
1.3 days
2G stand-by time--500 h
30000 min
20.8 days
3G talk time--24 h
1440 min
1 days
3G stand-by time--500 h
30000 min
20.8 days
4G talk time--24 h
1440 min
1 days
4G stand-by time--400 h
24000 min
16.7 days
Charger output power5 V / 2 A5 V / 2 A
9 V / 2 A
-
FeaturesFast charging
Removable
Fast charging
Non-removable
Non-removable
--Charging time - 2 hours 42 minutes

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)-0.231 W/kg-
Body SAR (EU)-1.48 W/kg-
Head SAR (USA)-0.478 W/kg-
Body SAR (USA)-1.074 W/kg-

Additional features

Some devices have additional features, different from the standard ones above, but equally important and worth mentioning.

Additional features-M1908C3II - SAR (Specific Absorption Rate) India: head - 0.339 W/kg; body - 1.000 W/kg
P2i nano-coating
Dedicated Google Assistant button
 Cubot P40Xiaomi Redmi 8Alcatel 3X (2020)