realme C75x vs Xiaomi Redmi 15 4G: Comparison

Comparison of features, performance, design, battery, camera and connectivity between the following smartphones: realme C75x vs Xiaomi Redmi 15 4G. The complete information of specifications to decide which to buy.

Compare
realme C75xrealme C75xInternational · 8GB · 256GB
Xiaomi Redmi 15 4GXiaomi Redmi 15 4GGlobal · 6GB · 128GB
Technical data sheets

Basics
realme C75x
realme C75x
International · 8GB · 256GB
View datasheet
vs
Xiaomi Redmi 15 4G
Xiaomi Redmi 15 4G
Global · 6GB · 128GB
View datasheet
vs

Score
Ki Cost-effective
Score		 -- No price,
no Ki 		7.0 Ki Cost-effective
Score
Design and Screen score 6.4Design & Materials 6.0Design & Materials
Performance and Hardware score 6.2Performance & Hardware 6.6Performance & Hardware
Camera score 5.4Camera 5.6Camera
Connectivity score 6.4 Connectivity 5.9 Connectivity
Battery score 7.3 Battery 8.1 Battery

User reviews
User score
--
No user reviews
8.4
10 reviews

Technical specifications of the realme C75x vs Xiaomi Redmi 15 4G

Specs realme C75x price comparison realme C75x
International · 8GB · 256GB 		Xiaomi Redmi 15 4G price comparison Xiaomi Redmi 15 4G
Global · 6GB · 128GB
Inches 6.67" 6.9"
Resolution HD+ FHD+
Usable surface 86% useful 83% useful
Aspect Ratio 21:9 20:9
Dimensions 76.2 mm
165.7 mm
8.0 mm 		82.1 mm
171.1 mm
8.0 mm
Weight 196 g 224 g
Micro Helio G81
Octa-Core 		SnapD. 685
Octa-Core
RAM 8 GB RAM 6 GB RAM
Storage 256 GB 128 GB
AnTuTu 262.145
v10 		338.000
v10
Battery 5600 mAh 7000 mAh
Main Camera 1
50 Mpx · ƒ/1.8

2 		1
50 Mpx · ƒ/1.8

2 3
Selfie Camera SELF 5 Mpx · ƒ/2.2 SELF 8 Mpx · ƒ/2.0
Bands
OS Android 15 Android 16

Brand
Brand realme Xiaomi
Aliases RMX5020 --

Release Date
Release date April 2025,
1 year ago 		August 2025,
1 year ago
State Not available On Sale
Market International Global

Design & Materials

Structure

realme C75x
Xiaomi Redmi 15 4G
realme C75x
Xiaomi Redmi 15 4G
Size
76.2 mm • 165.7 mm • 8.0 mm
See more details
 Print 3D Model
82.1 mm • 171.1 mm • 8.0 mm
See more details
 Print 3D Model
Weight 196 g 224 g
Usable surface 86 % 83 %
Materials Plastic, Glass Plastic
Resistance IP69 IP64
Colors
Blue
Pink
Green
Black
Blue
Silver
Gray
Violet

Screen
Diagonal 6.67" 6.9"
Type LCD IPS LCD IPS
Aspect Ratio 21:9 20:9
Resolution HD+
720 x 1604 px 		FHD+
1080 x 2340 px
Brightness -- 700 nits
Peak brightness -- --
Maximum brightness (HBM) -- --
Density 264 Pixels per inch 374 Pixels per inch

Others

Others
  • Hole-punch Notch
  • TÜV Rheinland Flicker-free Certified
  • Refresh rate 120 Hz
  • Touch sampling rate 240 Hz
  • TÜV Rheinland Eye Comfort Certification
  • DCI-P3
  • Scratch resistant
  • 2.5D curved glass screen
  • Capacitive
  • Multi-touch
  • Frameless
  • Hole-punch Notch
  • TUV Rheinland Low Blue Light
  • TÜV Rheinland Flicker-free Certified
  • Refresh rate 144 Hz
  • Brightnes 700 cd/m² (typ)
  • TÜV Rheinland Eye Comfort Certification
  • DCI-P3
  • Scratch resistant
  • Capacitive
  • Multi-touch
  • Frameless

User reviews

Is it a drop-resistant and scratch-resistant smartphone?
--
8.2
Do you think it's a nice phone?
--
7.8
Is it comfortable?
--
7.8
Can you see it well in the sunlight?
--
8.5
Number of reviews
--
10 reviews

Performance & Hardware

Processor
Model MediaTek Helio G81 Ultra Qualcomm Snapdragon 685 (SM6225)
CPU 2x Cortex-A75 2.0 GHz + 6x Cortex-A55 1.8 GHz 4x2.8 GHz Cortex-A73 + 4x1.9GHz Cortex-A53
Type Octa-Core Octa-Core
Manufacturing 12 nm 6 nm
64 Bits Yes Yes

Graphics
GPU Mali-G52 MC2 Adreno 610

RAM
RAM 8 GB 6 GB
Type LPDDR4X RAM LPDDR4X RAM

Antutu
Score
262.145
Antutu v10
Overall performance better than 60% of devices
See more details
338.000
Antutu v10
Overall performance better than 62% of devices
See more details

Storage
Capacity 256 GB 128 GB
Type eMMC 5.1 Storage UFS Storage 2.2
SD Slot Yes ,
Independent SD slot 		Yes ,
Slot for SD or second SIM card

Security
Fingerprint Yes, on the side Yes, on the side

Sensors
Sensors
  • Fingerprint
  • Proximity
  • Light sensor
  • Accelerometer
  • Fingerprint
  • Light sensor
  • Accelerometer
  • Gyroscope
  • Ultrasonic proximity virtual

Audio

Audio
  • DTS / DTS X
  • Stereo Speakers
  • Dolby Atmos

Others
Notifications LED -- --
Cooling system No Yes
Gaming buttons No No

User reviews

Does it have good sound?
--
8.2
Does it work smoothly in everyday use?
--
8.5
What's your experience been with demanding games?
--
7.1
Number of reviews
--
10 reviews

Camera

Main
No. of cameras Double rear camera Triple rear camera
1
Camera type

Standard

Standard
Resolution 50 Mpx 50 Mpx
Aperture ƒ/ 1.8 ƒ/ 1.8
Optical zoom -- --
View angle -- --
Sensor Unknown Unknown
Type CMOS ISOCELL
ISO -- --
Pixel size -- --
Pixel Binning -- --
Sensor size -- --
2
Camera type

Standard

Portrait mode (depth)
Resolution
0.3 Mpx
2 Mpx
Aperture
Unknow
ƒ/ 2.4
Optical zoom
--
--
View angle
--
--
Sensor
Unknown
Unknown
Type
--
CMOS
Pixel size
--
--
Pixel Binning
--
--
Sensor size
--
--
3
Camera type
--

Standard
Resolution
0.3 Mpx
Aperture
Unknow
Optical zoom
--
View angle
--
Sensor
Unknown
Type
CMOS
Pixel size
--
Pixel Binning
--
Sensor size
--

Features
Flash LED LED
Optical Stabilisation No No
Slow Motion Video Yes,
120 fps 		Yes,
60 fps
Others
  • Digital zoom
  • Dual camera
  • Digital image stabilization
  • Autofocus
  • Touch focus
  • Geotagging
  • HDR
  • Face detection
  • White balance settings
  • ISO settings
  • Exposure compensation
  • Scene mode
  • Self-timer
  • Digital zoom
  • Triple camera
  • Digital image stabilization
  • Autofocus
  • Touch focus
  • Continuous shooting
  • Geotagging
  • Panorama
  • HDR
  • Face detection
  • White balance settings
  • ISO settings
  • Exposure compensation
  • Scene mode
  • Self-timer

Selfie
SELF
Camera type

Dedicated

Dedicated
Resolution 5 Mpx 8 Mpx
Aperture ƒ/ 2.2 ƒ/ 2.0
Optical zoom -- --
View angle -- --
Sensor Unknown Unknown
Type CMOS CMOS
Pixel size -- --
Pixel Binning -- --
Sensor size -- --
Others
--
--

DxOMark Score
DxOMark Score -- --

User reviews

Quality of daytime photos
--
7.4
Quality of nighttime photos
--
6.1
Quality of selfies
--
6.7
Does it have a powerful flash?
--
7.0
Number of reviews
--
10 reviews

Connectivity

Network compatibility

5G -- --
4G LTE
  • B1 (2100)
  • B2 (1900)
  • B3 (1800)
  • B4 (1700/2100 AWS 1)
  • B5 (850)
  • B7 (2600)
  • B8 (900)
  • B13 (700)
  • B20 (800)
  • B26 (850)
  • B28b (700)
  • B28a (700)
  • B38 (TDD 2600)
  • B40 (TDD 2300)
  • B41 (TDD 2500)
  • B66 (1700/2100)
  • B1 (2100)
  • B3 (1800)
  • B5 (850)
  • B7 (2600)
  • B8 (900)
  • B20 (800)
  • B28b (700)
  • B28a (700)
  • B38 (TDD 2600)
  • B40 (TDD 2300)
  • B41 (TDD 2500)
3G
  • B1 (2100)
  • B2 (1900)
  • B4 (1700/2100 AWS A-F)
  • B5 (850)
  • B8 (900)
  • B1 (2100)
  • B5 (850)
  • B8 (900)
2G
  • B2 (1900)
  • B3 (1800)
  • B5 (850)
  • B8 (900)
  • B2 (1900)
  • B3 (1800)
  • B5 (850)
  • B8 (900)

SIM card
Dual SIM Dual Sim Dual Standby Dual Sim Dual Standby
Type
  • Nano SIM
  • Nano SIM
  • Nano SIM
  • Nano SIM

Wi-Fi
Wi-Fi
  • 802.11a
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11n 5GHz
  • 802.11ac
  • 802.11a
  • 802.11b
  • 802.11g
  • 802.11n
  • 802.11n 5GHz
  • 802.11ac
Others
  • Wi-Fi Hotspot
  • Wi-Fi Direct
  • Wi-Fi Display
  • Dual band
  • Wi-Fi Hotspot
  • Wi-Fi Direct
  • Wi-Fi Display

Bluetooth
Version Bluetooth 5.0 LE Low energy consumption Bluetooth 5.1 LE Low energy consumption
Others
  • A2DP (Advanced Audio Distribution Profile)
  • EDR (Enhanced Data Rate)
  • HID (Human Interface Profile)
  • LE (Low Energy)
  • LDAC
  • SBC
  • AAC
  • A2DP (Advanced Audio Distribution Profile)
  • LE (Low Energy)
  • APT-x
  • LDAC
  • SBC
  • AAC

Navigation
Navigation
  • GPS
  • A-GPS
  • GLONASS
  • Beidou
  • QZSS
  • Galileo
  • GPS
  • A-GPS
  • GLONASS
  • Beidou
  • Galileo

USB
USB
  • Charging
  • Mass Storage
  • USB Type C
  • USB Host 2.0
  • Charging
  • Mass Storage
  • USB On-The-Go (OTG)
  • USB Type C
  • USB Host 2.0

SAR
European measurement

The European Union sets a limit of 2 W/kg averaged over 10 grams of tissue.

 -- --
American measurement

The FCC limit is 1.6 W/kg measured in a volume of 1 gram of tissue

 -- --

Others
Others
  • NFC
  • Computer sync
  • OTA sync
  • Tethering.
  • VoLTE
  • NFC
  • Computer sync
  • Infrared
  • Tethering.
  • VoLTE

User reviews

Does it have good coverage for calls?
--
8.7
Quality of the GPS
--
7.9
And the WiFi?
--
8.6
Number of reviews
--
10 reviews

Battery

Battery
Capacity
5600 mAh
See more details
7000 mAh
See more details
Type Li-Polymer Li-Polymer
Fast charge Yes,
45.0W 		Yes,
33.0W
Others
  • Non-removable
  • Non-removable

User reviews

How long does the battery last?
--
  • 0%
    Less than half day
  • 0%
    Less than a day
  • 0%
    One day
  • 60%
    More than one day
  • 40%
    Two days or more
Number of reviews
--
10 reviews

Software

Software
Operating System
  • RealmeUI 6.0 (Android 15)
    Android 15 , 2 years ago
  • HyperOS 3.X (Android 16)
    Android 16 , 1 year ago
Google Services With Google Mobile Services With Google Mobile Services

User reviews

Did it come with preinstalled applications?
--
  • 10%
    It comes with a clean operating system
  • 90%
    It has preinstalled apps but they don't bother me
  • 0%
    It has preinstalled apps that I can't uninstall
Do you regularly receive updates?
--
  • 0%
    Never
  • 11%
    Once a year
  • 44%
    Every six months
  • 44%
    Every two months or less
Number of reviews
--
10 reviews
Prices
Prices unavailable
From $ 167 --

Others

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