Comparison between:
- Xiaomi Redmi 9A
- Xiaomi Redmi 7A
- Realme C3

Brand and model

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

Xiaomi Redmi 9AXiaomi Redmi 7ARealme C3
Xiaomi Redmi 9A
Prices
Xiaomi Redmi 7A
Prices
Realme C3
Prices
Model alias--C3i

Design

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

Width75.9 mm
7.59 cm
0.249 ft
2.988 in
70.41 mm
7.041 cm
0.231 ft
2.772 in
75 mm
7.5 cm
0.246 ft
2.953 in
Height164.4 mm
16.44 cm
0.539 ft
6.472 in
146.3 mm
14.63 cm
0.48 ft
5.76 in
164.4 mm
16.44 cm
0.539 ft
6.472 in
Thickness9.1 mm
0.91 cm
0.03 ft
0.358 in
9.55 mm
0.955 cm
0.031 ft
0.376 in
8.95 mm
0.895 cm
0.029 ft
0.352 in
Weight196 g
0.43 lbs
6.91 oz
165 g
0.36 lbs
5.82 oz
195 g
0.43 lbs
6.88 oz
Volume113.55 cm³
6.9 in³
98.37 cm³
5.97 in³
110.35 cm³
6.7 in³
ColorsGranite Gray
Peacook Green
Sky Blue
Black
Blue
Blazing Red
Frozen Blue
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-SIMNano-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
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
GSM 850 MHz (B5)
GSM 900 MHz (B8)
GSM 1800 MHz (B3)
GSM 1900 MHz (B2)
CDMA-CDMA 800 MHz-
W-CDMAW-CDMA 850 MHz (B5)
W-CDMA 900 MHz (B8)
W-CDMA 2100 MHz (B1)
W-CDMA 850 MHz
W-CDMA 900 MHz
W-CDMA 2100 MHz
W-CDMA 850 MHz (B5)
W-CDMA 900 MHz (B8)
W-CDMA 2100 MHz (B1)
TD-SCDMA-TD-SCDMA 1900 MHz
TD-SCDMA 2000 MHz
-
LTELTE-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-TDD 2600 MHz (B38)
LTE-TDD 1900 MHz (B39)
LTE-TDD 2000 MHz (B34)
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-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-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
EV-DO Rev. A
TD-SCDMA
TD-HSDPA
UMTS
EDGE
GPRS
HSPA+
LTE

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 12 (Android 10)MIUI V10.2 (Android 9.0 Pie)
MIUI V11.0.1 (Android 10)
Android 10
User interface (UI)--realme UI 1.0

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.

SoCMediaTek Helio G25Qualcomm Snapdragon 439MediaTek Helio G70
Process technology12 nm12 nm12 nm
CPUCortex-A554x 1.95 GHz ARM Cortex-A53, 4x 1.45 GHz ARM Cortex-A532x 2.0 GHz Cortex-A75, 6x 1.7 GHz Cortex-A55
CPU bits64 bit64 bit64 bit
Instruction setARMv8-AARMv8ARMv8-A
CPU cores888
CPU frequency2000 MHz1950 MHz2000 MHz
GPUIMG PowerVR GE8320Qualcomm Adreno 505ARM Mali-G52 2EEMC2
GPU frequency650 MHz-820 MHz
RAM capacity2 GB2 GB
3 GB
3 GB
4 GB
RAM typeLPDDR3LPDDR3LPDDR3
RAM channelsSingle channelSingle channelSingle channel
RAM frequency933 MHz-933 MHz

Storage

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

Storage32 GB16 GB
32 GB
32 GB
64 GB
eMMC 5.1-eMMC 5.1

Memory cards

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

TypesminiSD
microSDHC
microSDXC
microSD
microSDHC
microSDXC
miniSD
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
5.45 in
138.43 mm
13.84 cm
6.52 in
165.61 mm
16.56 cm
Width2.68 in
68.06 mm
6.81 cm
2.44 in
61.91 mm
6.19 cm
2.68 in
67.96 mm
6.8 cm
Height5.95 in
151.25 mm
15.13 cm
4.87 in
123.82 mm
12.38 cm
5.95 in
151.02 mm
15.1 cm
Aspect ratio2.222:12:1
2:1 (18:9)
2.222:1
Resolution720 x 1600 pixels720 x 1440 pixels720 x 1600 pixels
Pixel density269 ppi
105 ppcm
295 ppi
115 ppcm
269 ppi
105 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area82.77 %74.65 %83.51 %
Other featuresCapacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Capacitive
Multi-touch
Scratch resistant
2.5D curved glass screen2.5D curved glass screen
1000:1 contrast ratio
70.8% NTSC
Corning Gorilla Glass
2.5D curved glass screen
480 cd/m²

Sensors

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

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

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 IMX486 Exmor RS-
Sensor typeCMOSCMOSCMOS
Sensor format-1/2.9"-
Pixel size1.12 µm
0.001120 mm
1.25 µm
0.001250 mm
1.25 µm
0.001250 mm
Aperturef/1.8f/2.2f/1.8
Focal length and 35 mm equivalent--3.95 mm
Number of lenses--5
Flash typeLEDDual LEDDual LED
Image resolution4160 x 3120 pixels
12.98 MP
4160 x 3120 pixels
12.98 MP
4032 x 3096 pixels
12.48 MP
Video resolution1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
3840 x 2160 pixels
8.29 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
Phase detection autofocus (PDAF)
Autofocus
Continuous shooting
Digital zoom
Optical 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
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)
Chroma Boost
--4x digital zoom
Secondary rear camera - 2 MP (depth-sensing)
Aperture size - f/2.4 (#4)

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.

Pixel size--1.12 µm
0.001120 mm
Aperturef/2.4-f/2.4
Focal length and 35 mm equivalent27 mm *(35 mm / full frame)--
Number of lenses--5
Image resolution1600 x 1200 pixels
1.92 MP
2592 x 1944 pixels
5.04 MP
2560 x 1920 pixels
4.92 MP
Video resolution1280 x 720 pixels
0.92 MP
1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
Video FPS30 fps30 fps30 fps
FeaturesFace unlock
HDR
Face unlockFace unlock
HDR

Audio

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

SpeakerLoudspeaker
Earpiece
Loudspeaker
Earpiece
Loudspeaker
Earpiece

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
Galileo
GPS
A-GPS
GLONASS
BeiDou
GPS
A-GPS
GLONASS
BeiDou
Galileo

Wi-Fi

Wi-Fi is a technology that provides wireless data connections between various devices within a short range.

Wi-Fi802.11b
802.11g
802.11n
Wi-Fi Hotspot
802.11b
802.11g
802.11n
Wi-Fi Hotspot
Wi-Fi Direct
Wi-Fi Display
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.

Version5.04.25.0
FeaturesA2DP
EDR
HID
LE
A2DP
LE
A2DP
EDR
HID
LE

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
Host
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
Tethering
VoLTE
Computer sync
OTA sync
Tethering
VoLTE
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

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
LDAC
AAC
AAC+
AMR
AMR-WB
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AAC+
AMR
AMR-WB
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
LDAC

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
DivX
H.263
H.264
H.265
MKV
MP4
VC-1
Xvid
3GPP
AVI
DivX
H.263
H.264
H.265
MKV
MP4
VC-1
Xvid

Battery

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

Capacity5000 mAh4000 mAh5000 mAh
TypeLi-PolymerLi-PolymerLi-Polymer
2G talk time-25 h
1500 min
1 days
-
3G talk time-25 h
1500 min
1 days
43 h 54 min
43.9 h
2634 min
1.8 days
3G stand-by time--727 h 42 min
727.7 h
43662 min
30.3 days
Charger output power5 V / 2 A5 V / 2 A5 V / 2 A
FeaturesFast charging
Non-removable
Non-removableFast charging
Non-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)-0.557 W/kg-
Body SAR (EU)-1.166 W/kg-
Head SAR (USA)-1 W/kg-
Body SAR (USA)-1.12 W/kg-

Additional features

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

Additional features-P2i nano-coatingSplash resistant
 Xiaomi Redmi 9AXiaomi Redmi 7ARealme C3