Oppo Realme C75 vs Xiaomi Redmi 15 5G

Compared 2 smartphones : Oppo Realme C75 Manufactured in December, 2024, with display 6.72 with chipsetMediaTek Helio G92 Max, vs Xiaomi Redmi 15 5G, Manufactured in August, 2025with chipsetQualcomm Snapdragon 6s Gen 3. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Oppo Realme C75
  • Higher pixel density: 392ppi
  • Lighter design: 196g vs 224g
Reasons to choose Xiaomi Redmi 15 5G
  • Larger display: 6.9in
  • Higher refresh rate: 144Hz
  • Higher battery capacity: 7000mAh vs 6000mAh
  • Newer Bluetooth version: 5.1 vs 5
  • Infrared port

Versions

Available versions and configurations
Memory Options - 6/128 GB
- 8/128 GB
- 8/256 GB
- 4/128 GB
- 6/128 GB
- 8/256 GB

Review

Key Specs Oppo Realme C75 and Xiaomi Redmi 15 5G
Display
Color accuracy, sharpness & brightness
Camera
Main & front camera tests
Performance
App & system performance
Games
3D gaming performance
Battery
Battery life, charging speed & type
Connectivity
Connectivity features
NanoReview Score
Overall score by NanoReview
Adjust each parameter’s importance to find the best match for you.
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Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison

Display

Display quality comparison
Type IPS LCD IPS LCD
Size 6.72 in 6.9 in
Resolution 1080x2400 pixels 1080x2340 pixels
Aspect ratio 20:9 19.5:9
Pixel density 392 ppi 374 ppi
Refresh rate 90 Hz 144 Hz
Adaptive refresh rate No Yes
Max brightness 690 nits n/a
HDR support No No
Screen-to-body ratio 86.3 % 83.1 %

Design & Build

Design and ergonomics comparison
Height 165.69 mm (6.52 in) 171.1 mm (6.74 in)
Width 76.22 mm (3 in) 82.1 mm (3.23 in)
Thickness 7.99 mm (0.31 in) 8.6 mm (0.34 in)
Weight 196 g (6.91 oz) 224 g (7.9 oz)
Water resistance IP69 IP64
Back panel Plastic Plastic
Frame Plastic Plastic
Colors - Black
- Gold
- Black
- Gray
- Green
Fingerprint sensor Yes In-Button Yes, In-Button
Screen-to-body ratio
Oppo Realme C75
86.3 %
Xiaomi Redmi 15 5G
83.1 %

Performance

Testing Oppo Realme C75 and Xiaomi Redmi 15 5G In benchmarks
Processor
Chipset MediaTek Helio G92 Max Qualcomm Snapdragon 6s Gen 3
Max Frequency 2000 MHz 2300 MHz
CPU Cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6/1.8 (Cortex-A55)
- 2/2 (Cortex-A75)
- 6/2 (Cortex-A55)
- 2/2.3 (Cortex-A78)
Process TSMC TSMC
Transistor Size 12 nm 6 nm
Neural Processor MediaTek APU Hexagon
Graphics Mali-G52 MP2 Adreno 619
GPU Cores 48 256
GPU Frequency 1000 MHz 900 MHz
FLOPS 96 GFLOPS 460.8 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Oppo Realme C75
436
Xiaomi Redmi 15 5G
935
Geekbench 6 (Multi-Core)
Oppo Realme C75
1356
Xiaomi Redmi 15 5G
2109
Geekbench 6 (Single-Core)436935
Geekbench 6 (Multi-Core)13562109
Geekbench Compute (GPU)1075n/a
AnTuTu 10
AnTuTu 10
Oppo Realme C75
222969
Xiaomi Redmi 15 5G
473154
CPU58520153170
GPU4083891687
Memory5967299792
UX63939128505
NanoReview Score222969473154

Memory

RAM
RAM Size - 6 GB
- 8 GB
4 GB
Memory Type LPDDR4X LPDDR4X
Memory Frequency 1800 MHz 2133 MHz
Channels 2 2
Storage
Storage Capacity- 128 GB
- 256 GB
128 GB
Storage TypeeMMC 5.1UFS 2.2
Memory CardMicroSDNo

Software

OS Android 14 Android 15
UI Skin Realme UI 5.0 HyperOS 2.0

Battery

Volume 6000 mAh 7000 mAh
Max Charging Power 45 W 33 W
Battery Type Li-Po n/a
Removable No No
Wireless Charging No No
Reverse Charging Yes No
Fast Charging Yes (40% in 30 min) Yes

Main camera

Matrix 50 MP 50 MP
Zoom Digital Digital
Flash LED LED
Stabilization Digital Digital
8K Recording No No
4K Recording No No
1080p Recording Yes (Up to 30 fps) Yes (Up to 30 fps)
Lenses count Standard: 50 MP
Depth
Standard: 50 MP
Depth
Features - Bokeh effect
- Pro mode
Bokeh effect
Main lens
Matrix50 MP50 MP
Aperturef/1.8f/1.8
Sensor size1/2.88n/a
Pixel size0.64 μmn/a
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalDigital

Front camera

Matrix 8 MP 8 MP
Photo resolution 3264x2448 pixels n/a
Aperture f/2.0 f/2.0
Focal length 26 mm n/a
Sensor CMOS n/a
Sensor size 1/4 n/a
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 1080p (Full HD) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 5 (802.11 a/b/g/n/ac)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
- Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5 5.1
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB Storage Mode
- OTG
- Charging
- USB Storage Mode
- OTG
DisplayPort No n/a
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- GPS
- GLONASS
- Beidou
- Galileo
NFC* Varies by region Yes
Infrared Port No Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM 850/900/1800/1900MHzn/a
3G BandsWCDMA 1/5/8n/a
LTE Bands*LTE (B1/B3/B5/B7/B8/B20/B28/B38/B40/B41)n/a
LTE category7n/a
5G SupportNoYes

Sound

Speakers Stereo n/a
3.5 mm Jack No Yes
FM Radio No Yes
Dolby Atmos No n/a

Other

Class Budget Mid-range
Announced November, 2024 yr August, 2025 yr
Release Date December, 2024 yr August, 2025 yr
Launch Price ($) 180 n/a
MSRP ($) n/a 230
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 45 W Yes, 33 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

No clear favorite identified yet; updates may follow as new data arrives.

Survey

Which smartphone would you pick?
1 (16.67%)
5 (83.33%)
Total Votes: 6

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