Comparison between:
- Xiaomi Redmi 9
- Cubot R15 Pro
- Cubot Echo

Brand and model

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

Xiaomi Redmi 9Cubot R15 ProCubot Echo
Xiaomi Redmi 9
Prices
Cubot R15 ProCubot Echo
Model aliasM2004J19G
Redmi 9 Prime
M2004J19AG
M2004J19C
--

Design

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

Width77.01 mm
7.701 cm
0.253 ft
3.032 in
77 mm
7.7 cm
0.253 ft
3.031 in
72 mm
7.2 cm
0.236 ft
2.835 in
Height163.32 mm
16.332 cm
0.536 ft
6.43 in
155.8 mm
15.58 cm
0.511 ft
6.134 in
143 mm
14.3 cm
0.469 ft
5.63 in
Thickness9.1 mm
0.91 cm
0.03 ft
0.358 in
9.1 mm
0.91 cm
0.03 ft
0.358 in
11.35 mm
1.135 cm
0.037 ft
0.447 in
Weight198 g
0.44 lbs
6.98 oz
-204 g
0.45 lbs
7.2 oz
Volume114.45 cm³
6.95 in³
109.17 cm³
6.63 in³
116.86 cm³
7.1 in³
ColorsMidnight Grey
Forest Green
Polar White
Black
Aurora
Green
White
Gold
Black
Body materialsPlasticPolycarbonatePlastic

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-SIMMini-SIM
Micro-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 (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
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
CDMACDMA 800 MHz (BC0)--
W-CDMAW-CDMA 850 MHz (B5)
W-CDMA 900 MHz (B8)
W-CDMA 1700 MHz (B4)
W-CDMA 1900 MHz (B2)
W-CDMA 2100 MHz (B1)
W-CDMA 900 MHz (B8)
W-CDMA 2100 MHz (B1)
W-CDMA 850 MHz
W-CDMA 900 MHz
W-CDMA 2100 MHz
LTELTE-FDD 700 MHz (B28)
LTE-FDD 800 MHz (B20)
LTE-FDD 850 MHz (B5)
LTE-FDD 900 MHz (B8)
LTE-FDD 1700 MHz (B4)
LTE-FDD 1800 MHz (B3)
LTE-FDD 1900 MHz (B2)
LTE-FDD 2100 MHz (B1)
LTE-FDD 2600 MHz (B7)
LTE-TDD 2300 MHz (B40)
LTE-TDD 2500 MHz (B41)
LTE-TDD 2600 MHz (B38)
LTE-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)
-

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 12
EV-DO Rev. A
UMTS
EDGE
GPRS
HSPA+
LTE Cat 4
UMTS
EDGE
GPRS
HSPA+

Operating system

Operating system is the system software, which manages and controls the functioning of the hardware components of the device.

Operating system (OS)MIUI V12 (Android 10)Android 9.0 PieAndroid 6.0 Marshmallow

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 G80MediaTek Helio A22 (MT6761)MediaTek MT6580
Process technology12 nm12 nm28 nm
CPU2x 2.0 GHz Cortex-A75, 6x 1.8 GHz Cortex-A55ARM Cortex-A53ARM Cortex-A7
CPU bits64 bit64 bit32 bit
Instruction setARMv8.2-AARMv8-AARMv7
Level 1 cache memory (L1)--32 KB + 32 KB
Level 2 cache memory (L2)--512 KB
0.5 MB
CPU cores844
CPU frequency2000 MHz2000 MHz1300 MHz
GPUARM Mali-G52 2EEMC2PowerVR GE8300ARM Mali-400 MP2
GPU cores--2
GPU frequency950 MHz--
RAM capacity3 GB
4 GB
3 GB2 GB
RAM typeLPDDR4XLPDDR3-
RAM channelsDouble channelSingle channelSingle channel
RAM frequency2133 MHz933 MHz533 MHz

Storage

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

Storage32 GB
64 GB
32 GB16 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 size6.53 in
165.86 mm
16.59 cm
6.26 in
159 mm
15.9 cm
5 in
127 mm
12.7 cm
Width2.74 in
69.51 mm
6.95 cm
2.68 in
68.07 mm
6.81 cm
2.45 in
62.26 mm
6.23 cm
Height5.93 in
150.6 mm
15.06 cm
5.66 in
143.7 mm
14.37 cm
4.36 in
110.69 mm
11.07 cm
Aspect ratio2.167:12.111:11.778:1
16:9
Resolution1080 x 2340 pixels720 x 1520 pixels720 x 1280 pixels
Pixel density395 ppi
155 ppcm
269 ppi
105 ppcm
294 ppi
115 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area83.49 %81.8 %67.15 %
Other featuresCapacitive
Scratch resistant
Capacitive
Multi-touch
Capacitive
Multi-touch
2.5D curved glass screen
Corning Gorilla Glass 3
400 cd/m²
70% NTSC
1500:1
TÜV Rheinland Certified Reading Mode
2.5D curved glass screen
GFF full lamination
1300:1 contrast ratio
450 cd/m²
90% 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
Gyroscope
Fingerprint
Proximity
Light
Accelerometer
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 typeCMOS-CMOS
Pixel size-1.25 µm
0.001250 mm
-
Aperturef/2.2f/2-
Field of view75.2 °--
Number of lenses--5
Flash typeLEDLEDDual LED
Image resolution4160 x 3120 pixels
12.98 MP
4608 x 3456 pixels
15.93 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
Video FPS30 fps30 fps30 fps
FeaturesAutofocus
Digital zoom
Digital image stabilization
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Macro mode
Phase detection autofocus (PDAF)
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
Secondary rear camera - 8 MP (ultra-wide)
Sensor model - OmniVision OV8856 (#2)
GalaxyCore GC8034 version also available(#2)
Sensor size - 1/4" (#2)
Pixel size - 1.12 μm (#2)
Aperture size - f/2.2 (#2)
Angle of view - 118° (#2)
Focal length (35 mm equivalent) - 13 mm (#2)
Third rear camera - 2MP (depth-sensing)
Sensor model - GalaxyCore GC02M1 (#3)
Sensor size - 1/5" (#3)
Pixel size - 1.75 μm (#3)
Aperture size - f/2.4 (#3)
Fourth rear camera - 5MP (macro)
Pixel size - 1.12 μm (#4)
Aperture size - f/2.4 (#4)
Secondary rear camera - 2 MP (depth-sensing)-

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.

Aperturef/2--
Field of view77.8 °--
Image resolution3264 x 2448 pixels
7.99 MP
4160 x 3120 pixels
12.98 MP
2560 x 1920 pixels
4.92 MP
Video resolution1920 x 1080 pixels
2.07 MP
1280 x 720 pixels
0.92 MP
-
Video FPS30 fps30 fps-
FeaturesFace unlock
HDR
Face detection
Face unlock-

Audio

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

SpeakerLoudspeaker
Earpiece
Loudspeaker
Earpiece
Loudspeaker
Earpiece
Smart PA
Dual microphones with active noise cancellation
1216 linear speaker
Vibration motor
-Awinic AW87319

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
Galileo
Beidou
GPS
A-GPS
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
802.11ac
Dual band
Wi-Fi Hotspot
Wi-Fi Direct
Wi-Fi Display
802.11a
802.11b
802.11g
802.11n
Wi-Fi Hotspot
Wi-Fi Direct
Wi-Fi Display
802.11b
802.11g
802.11n
Wi-Fi Hotspot

Bluetooth

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

Version5.04.24.0
FeaturesA2DP
EDR
HID
LE
A2DPA2DP

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
Mass storage
On-The-Go
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 jackYesYesYes

Connectivity

Information about other important connectivity technologies supported by the devices.

ConnectivityComputer sync
OTA sync
Infrared
Tethering
NFC
VoLTE
ViLTE
VoWiFi
Computer sync
OTA sync
Tethering
VoLTE
Computer sync
OTA sync
Tethering
HotKnot
NFC market dependent--

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
aptX HD
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
LDAC
AAC
AMR
eAAC+
FLAC
M4A
MIDI
MP3
OGG
WMA
WAV
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
DivX
H.263
H.264
H.265
MKV
MP4
VC-1
Xvid
3GPP
AVI
Flash Video
H.263
H.264
MKV
QuickTime
MP4
WebM
WMV
WMV9
Xvid
3GPP
AVI
MP4
Xvid

Battery

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

Capacity5020 mAh3000 mAh3000 mAh
TypeLi-IonLi-IonLi-Ion
Charger output power5 V / 2 A
9 V / 2 A
--
Quick charge technologyQualcomm Quick Charge 3.0--
FeaturesFast charging
Non-removable
RemovableRemovable

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)0.789 W/kg-0.401 W/kg
Body SAR (EU)1.065 W/kg-1.141 W/kg
Head SAR (USA)1.084 W/kg--
Body SAR (USA)1.049 W/kg--

Additional features

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

Additional featuresP2i splash-proof nano-coating
Redmi 9 Prime - Matte Black
Mint Green
Space Blue
Sunrise Flare
--
 Xiaomi Redmi 9Cubot R15 ProCubot Echo