Comparison between:
- Realme C15 Mediatek
- Xiaomi Redmi 9
- Realme C3
- Oppo A31

Brand and model

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

Realme C15 MediatekXiaomi Redmi 9Realme C3Oppo A31
Realme C15 MediatekXiaomi Redmi 9
Prices
Realme C3
Prices
Oppo A31
Prices
Model aliasRMX2180M2004J19G
Redmi 9 Prime
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
77.01 mm
7.701 cm
0.253 ft
3.032 in
75 mm
7.5 cm
0.246 ft
2.953 in
75.5 mm
7.55 cm
0.248 ft
2.972 in
Height164.4 mm
16.44 cm
0.539 ft
6.472 in
163.32 mm
16.332 cm
0.536 ft
6.43 in
164.4 mm
16.44 cm
0.539 ft
6.472 in
163.9 mm
16.39 cm
0.538 ft
6.453 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
8.95 mm
0.895 cm
0.029 ft
0.352 in
8.3 mm
0.83 cm
0.027 ft
0.327 in
Weight196 g
0.43 lbs
6.91 oz
198 g
0.44 lbs
6.98 oz
195 g
0.43 lbs
6.88 oz
180 g
0.4 lbs
6.35 oz
Volume113.55 cm³
6.9 in³
114.45 cm³
6.95 in³
110.35 cm³
6.7 in³
102.71 cm³
6.24 in³
ColorsSeagull Silver (Power Silver)
Marine Blue (Power Blue)
Midnight Grey
Forest Green
Polar White
Blazing Red
Frozen Blue
Mystery Black
Fantasy White
Body materialsPlasticPlasticPlasticPlastic

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-SIMNano-SIM
Nano-SIM / microSD
Number of SIM cards2222
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)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)
GSM 850 MHz (B5)
GSM 900 MHz (B8)
GSM 1800 MHz (B3)
GSM 1900 MHz (B2)
CDMA-CDMA 800 MHz (BC0)-CDMA 800 MHz (BC0)
W-CDMAW-CDMA 850 MHz (B5)
W-CDMA 900 MHz (B8)
W-CDMA 2100 MHz (B1)
W-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 850 MHz (B5)
W-CDMA 900 MHz (B8)
W-CDMA 2100 MHz (B1)
W-CDMA 850 MHz (B5)
W-CDMA 900 MHz (B8)
W-CDMA 2100 MHz (B1)
TD-SCDMA---TD-SCDMA 1880-1920 MHz
TD-SCDMA 2010-2025 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-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 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-FDD 850 MHz (B5)
LTE-FDD 900 MHz (B8)
LTE-FDD 2100 MHz (B1)
LTE-FDD 2600 MHz (B7)
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)

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

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 V12 (Android 10)Android 10ColorOS 6.1.2 (Android 9.0 Pie)
User interface (UI)realme UI 1.0-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 G35MediaTek Helio G80MediaTek Helio G70MediaTek Helio P35 (MT6765V/CB)
Process technology12 nm12 nm12 nm12 nm
CPU4x 2.3 GHz Cortex-A53, 4x 1.8 GHz Cortex-A532x 2.0 GHz Cortex-A75, 6x 1.8 GHz Cortex-A552x 2.0 GHz Cortex-A75, 6x 1.7 GHz Cortex-A554x 2.3 GHz ARM Cortex-A53, 4x 1.8 GHz ARM Cortex-A53
CPU bits64 bit64 bit64 bit64 bit
Instruction setARMv8-AARMv8-AARMv8-AARMv8-A
CPU cores8888
CPU frequency2300 MHz2000 MHz2000 MHz2300 MHz
GPUIMG PowerVR GE8320ARM Mali-G52 2EEMC2ARM Mali-G52 2EEMC2PowerVR GE8320
GPU frequency680 MHz950 MHz820 MHz680 MHz
RAM capacity3 GB
4 GB
3 GB
4 GB
3 GB
4 GB
4 GB
RAM type-LPDDR4XLPDDR3LPDDR4X
RAM channels-Double channelSingle channelDouble channel
RAM frequency-2133 MHz933 MHz1866 MHz

Storage

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

Storage32 GB
64 GB
32 GB
64 GB
32 GB
64 GB
128 GB
eMMC 5.1eMMC 5.1eMMC 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
microSD
microSDHC
microSDXC

Display

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

Type/technologyIPSIPSIPSIPS
Diagonal size6.52 in
165.61 mm
16.56 cm
6.53 in
165.86 mm
16.59 cm
6.52 in
165.61 mm
16.56 cm
6.5 in
165.1 mm
16.51 cm
Width2.73 in
69.4 mm
6.94 cm
2.74 in
69.51 mm
6.95 cm
2.68 in
67.96 mm
6.8 cm
2.67 in
67.75 mm
6.78 cm
Height5.92 in
150.37 mm
15.04 cm
5.93 in
150.6 mm
15.06 cm
5.95 in
151.02 mm
15.1 cm
5.93 in
150.56 mm
15.06 cm
Aspect ratio2.167:12.167:12.222:12.222:1
Resolution720 x 1560 pixels1080 x 2340 pixels720 x 1600 pixels720 x 1600 pixels
Pixel density264 ppi
103 ppcm
395 ppi
155 ppcm
269 ppi
105 ppcm
270 ppi
106 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area83.9 %83.49 %83.51 %82.7 %
Other featuresCapacitive
Multi-touch
Scratch resistant
Capacitive
Scratch resistant
Capacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Scratch resistant
2.5D curved glass screen
In-cell
COG packaging
1200:1
Peak brightness - 420 cd/m²
2.5D curved glass screen
Corning Gorilla Glass 3
400 cd/m²
70% NTSC
1500:1
TÜV Rheinland Certified Reading Mode
Corning Gorilla Glass
2.5D curved glass screen
480 cd/m²
1500:1
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
Gyroscope
Fingerprint
Proximity
Light
Accelerometer
Compass
Proximity
Light
Accelerometer
Compass
Gyroscope
Geomagnetic
Fingerprint
Gravity

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 typeCMOSCMOSCMOS-
Sensor format1/3"---
Pixel size1.12 µm
0.001120 mm
-1.25 µm
0.001250 mm
0.8 µm
0.000800 mm
Aperturef/2.2f/2.2f/1.8f/1.8
Focal length and 35 mm equivalent--3.95 mm-
Field of view-75.2 °--
Number of lenses5-5-
Flash typeLEDLEDDual LEDLED
Image resolution4160 x 3120 pixels
12.98 MP
4160 x 3120 pixels
12.98 MP
4032 x 3096 pixels
12.48 MP
4096 x 3072 pixels
12.58 MP
Video resolution1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
3840 x 2160 pixels
8.29 MP
1920 x 1080 pixels
2.07 MP
Video FPS30 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
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
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
Autofocus
Geotagging
Panorama
HDR
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode
Macro mode
Phase detection autofocus (PDAF)
Secondary rear camera - 8 MP (ultra-wide-angle)
Angle of view - 119° (#2)
Sensor size - 1/4" (#2)
Pixel size - 1.12 μm (#2)
5-element lens (#2)
Third rear camera - 2 MP (mono)
Aperture size - f/2.4 (#3)
Sensor size - 1/5" (#3)
Pixel size - 1.75 μm (#3)
3-element lens (#3)
Fourth rear camera - 2 MP (retro)
Aperture size - f/2.4 (#4)
Sensor size - 1/5" (#4)
Pixel size - 1.75 μm (#4)
3-element lens (#4)
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)
4x digital zoom
Secondary rear camera - 2 MP (depth-sensing)
Aperture size - f/2.4 (#4)
5-element lens
Secondary rear camera - 2 MP (macro)
Aperture size - f/2.4 (#2)
Third rear camera - 2 MP (depth-sensing)
Aperture size - f/2.4 (#3)

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---
Sensor format1/4"---
Pixel size1.12 µm
0.001120 mm
-1.12 µm
0.001120 mm
-
Aperturef/2f/2f/2.4f/2
Field of view-77.8 °--
Number of lenses--5-
Image resolution3648 x 2448 pixels
8.93 MP
3264 x 2448 pixels
7.99 MP
2560 x 1920 pixels
4.92 MP
3264 x 2448 pixels
7.99 MP
Video resolution1280 x 720 pixels
0.92 MP
1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
Video FPS30 fps30 fps30 fps30 fps
FeaturesFace unlock
HDR
Face unlock
HDR
Face detection
Face unlock
HDR
-

Audio

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

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

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
Galileo
GPS
A-GPS
GLONASS
Galileo
Beidou
GPS
A-GPS
GLONASS
BeiDou
Galileo
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-Fi802.11b
802.11g
802.11n
Wi-Fi Hotspot
802.11a
802.11b
802.11g
802.11n
802.11n 5GHz
802.11ac
Dual band
Wi-Fi Hotspot
Wi-Fi Direct
Wi-Fi Display
802.11b
802.11g
802.11n
Wi-Fi Hotspot
Wi-Fi Direct
Wi-Fi Display
802.11a
802.11b
802.11g
802.11n
802.11n 5GHz
802.11ac
Dual band
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.

Version5.05.05.05.0
FeaturesA2DP
EDR
HID
LE
A2DP
EDR
HID
LE
A2DP
EDR
HID
LE
A2DP
LE

USB

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

Connector typeMicro USBUSB Type-CMicro USBMicro USB
Version2.02.02.02.0
FeaturesCharging
Mass storage
On-The-Go
Charging
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 jackYesYesYesYes

Connectivity

Information about other important connectivity technologies supported by the devices.

ConnectivityComputer sync
OTA sync
Tethering
VoLTE
Computer sync
OTA sync
Infrared
Tethering
NFC
VoLTE
ViLTE
VoWiFi
Computer sync
OTA sync
Tethering
VoLTE
Computer sync
Tethering
VoLTE
-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
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
aptX
aptX HD
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
LDAC
AAC
AAC+
AMR
AMR-WB
eAAC+
FLAC
MIDI
MP3
OGG
WMA
WAV
LDAC
AAC
AAC+
AMR
AMR-WB
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
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
Flash Video
H.263
H.264
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.

Capacity6000 mAh5020 mAh5000 mAh4230 mAh
TypeLi-PolymerLi-IonLi-PolymerLi-Polymer
3G talk time48 h
2880 min
2 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 power9 V / 2 A5 V / 2 A
9 V / 2 A
5 V / 2 A-
Quick charge technology-Qualcomm Quick Charge 3.0--
FeaturesFast charging
Non-removable
Fast charging
Non-removable
Fast charging
Non-removable
Non-removable

Additional features

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

Additional featuresSAR (Specific Absorption Rate) India: head - 1.184 W/kg; body - 0.709 W/kgP2i splash-proof nano-coating
Redmi 9 Prime - Matte Black
Mint Green
Space Blue
Sunrise Flare
Splash resistant-
 Realme C15 MediatekXiaomi Redmi 9Realme C3Oppo A31