Home Phone comparison Oppo Realme C55 and Xiaomi Redmi 15C 4G - Which is better?

Oppo Realme C55 vs Xiaomi Redmi 15C 4G

48 out 100
Oppo Realme C55
VS
56 out 100
Xiaomi Redmi 15C 4G
Oppo Realme C55
Xiaomi Redmi 15C 4G

Compared 2 smartphones : Oppo Realme C55 Manufactured in March, 2023, with display 6.72 with chipsetMediaTek Helio G88, vs Xiaomi Redmi 15C 4G, Manufactured in August, 2025 with chipsetMediaTek Helio G81 Ultra. Below are specs, tests, pros and cons for each device

  1. Differences
  2. Review
  3. Specs
  4. Benchmarks
  5. Battery Life
  6. Cameras
  7. Comments (0)

Key Differences

Device key advantages
Reasons to choose Oppo Realme C55
  • Higher pixel density: 392ppi
  • Lighter design: 189.5g vs 205g
  • Includes charger
Reasons to choose Xiaomi Redmi 15C 4G
  • Larger display: 6.9in
  • Higher refresh rate: 120Hz
  • Higher battery capacity: 6000mAh vs 5000mAh
  • Newer Bluetooth version: 5.4 vs 5.2

Versions

Available versions and configurations
Memory Options - 4/64 GB
- 4/128 GB
- 6/64 GB
- 6/128 GB
- 8/128 GB
- 8/256 GB		 - 4/128 GB
- 4/256 GB

Review

Key Specs Oppo Realme C55 and Xiaomi Redmi 15C 4G
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.
Customize your score
Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison
Smartphones:
Oppo Realme C55
vs
Xiaomi Redmi 15C 4G

Display

Display quality comparison
Type IPS LCD IPS LCD
Size 6.72 in 6.9 in
Resolution 1080x2400 pixels 720x1600 pixels
Aspect ratio 20:9 20:9
Pixel density 392 ppi 254 ppi
Refresh rate 90 Hz 120 Hz
Adaptive refresh rate No Yes (60-120 Hz)
Max brightness 680 nits n/a
HDR support No No
Touch Sampling Rate 180 Hz n/a
Screen-to-body ratio 86.7 % 84.2 %
Display test
Peak brightness (auto)
Oppo Realme C55
655 nits
Xiaomi Redmi 15C 4G
n/a
sRGB gamut100 %n/a
Response time21 msn/a
Contrast1471:1n/a
Sources: NotebookCheck [Oppo Realme C55]

Design & Build

Design and ergonomics comparison
Height 165.6 mm (6.52 in) 171.6 mm (6.76 in)
Width 75.9 mm (2.99 in) 79.5 mm (3.13 in)
Thickness 7.89 mm (0.31 in) 8 mm (0.31 in)
Weight 189.5 g (6.68 oz) 205 g (7.23 oz)
Water resistance No IP64
Back panel Plastic Eco Leather
Frame Plastic Plastic
Colors - Blue
- Green
- Yellow		 - Gray
- Blue
- Green
- Orange
Fingerprint sensor Yes In-Button Yes, In-Button
Screen-to-body ratio
Oppo Realme C55
86.7 %
Xiaomi Redmi 15C 4G
84.2 %

Performance

Testing Oppo Realme C55 and Xiaomi Redmi 15C 4G In benchmarks
Processor
Chipset MediaTek Helio G88 MediaTek Helio G81 Ultra
Max Frequency 2000 MHz 2000 MHz
CPU Cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6/1.8 (Cortex-A55)
- 2/2 (Cortex-A75)		 - 6/1.7 (Cortex-A55)
- 2/2 (Cortex-A75)
Process TSMC TSMC
Transistor Size 12 nm 12 nm
Neural Processor MediaTek APU Yes
Graphics Mali-G52 MP2 Mali-G52 MP2
GPU Cores 48 48
GPU Frequency 1000 MHz 820 MHz
FLOPS 96 GFLOPS 78.7 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Oppo Realme C55
425
Xiaomi Redmi 15C 4G
421
Geekbench 6 (Multi-Core)
Oppo Realme C55
1413
Xiaomi Redmi 15C 4G
1387
Geekbench 6 (Single-Core)425421
Geekbench 6 (Multi-Core)14131387
AnTuTu 10
AnTuTu 10
Oppo Realme C55
274070
Xiaomi Redmi 15C 4G
278312
CPU8173484872
GPU4192035457
Memory7495974922
UX7545783061
NanoReview Score274070278312
3DMark Wild Life
3DMark Wild Life
Oppo Realme C55
742
Xiaomi Redmi 15C 4G
n/a
Max Surface Temp.47.8 °Cn/a
Stability98 %n/a
Graphics Test4 fpsn/a
Graphics Score742n/a
Sources: 3DMark [Oppo Realme C55]
PCMark 3.0
PCMark 3.0
Oppo Realme C55
8633
Xiaomi Redmi 15C 4G
n/a
Writing score9636n/a
Web score7137n/a
Video editing6212n/a
Data manipulation6028n/a
NanoReview Score8633n/a

Memory

RAM
RAM Size - 6 GB
- 8 GB		 4 GB
Memory Type LPDDR4X LPDDR4X
Memory Frequency 1800 MHz 1800 MHz
Channels 2 2
Storage
Storage Capacity- 128 GB
- 256 GB		128 GB
Storage TypeeMMC 5.1eMMC 5.1
Memory CardMicroSDMicroSD

Software

OS Android 13 (Upgradeable to Android 14) Android 15
OS Size 20 GB n/a
UI Skin Realme UI 5.0 HyperOS 2.0

Battery

Volume 5000 mAh 6000 mAh
Max Charging Power 33 W 33 W
Battery Type Li-Po Li-Po
Removable No No
Wireless Charging No No
Reverse Charging No No
Fast Charging Yes (27% in 30 min) Yes
Full Charge Time 1:09 h n/a
Battery Life Test
Battery Life
Oppo Realme C55
22:19
Xiaomi Redmi 15C 4G
n/a
Web Browsing07:44 hn/a
Video Playback12:22 hn/a
Games05:14 hn/a
Standby Mode124 hn/a

Main camera

Matrix 64 MP 50 MP
Photo resolution 9248x6944 pixels 8160x6144 pixels
Zoom Digital Digital
Flash LED LED
Stabilization Digital Digital
8K Recording No No
4K Recording No No
1080p Recording Yes (Up to 60 fps) Yes (Up to 30 fps)
Slow Motion 120 fps (720p) n/a
Lenses count Standard: 64 MP
Depth: 2 MP		 Standard: 50 MP
Depth
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
Main lens
Matrix64 MP50 MP
Aperturen/af/1.8
Focal lengthn/a28 mm
SensorOmnivision OV64Bn/a
Sensor size1/21/2
Pixel size0.7 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
Sensor CMOS CMOS
Sensor size n/a 1/4.0
Pixel size n/a 1.12 μm
Autofocus No No
Stabilization Digital No
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 5.2 5.4
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB Storage Mode		 - Charging
- USB Storage Mode
- OTG
DisplayPort n/a No
GPS - GPS
- GLONASS
- Beidou
- Galileo		 - GPS
- GLONASS
- Beidou
- Galileo
NFC* Varies by region Varies by region
Infrared Port No No
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM 850/900/1800/1900n/a
3G BandsWCDMA Bands 1/5/8n/a
LTE Bands*LTE (B1/B3/B5/B8/B38/B40/B41)n/a
LTE category7n/a
5G SupportNoNo

Sound

Speakers Mono n/a
3.5 mm Jack Yes Yes
FM Radio No Yes
Dolby Atmos No No
Speaker Test
Max Volume
Oppo Realme C55
80.6 dB
Xiaomi Redmi 15C 4G
n/a

Other

Class Budget Budget
Announced March, 2023 yr August, 2025 yr
Release Date March, 2023 yr August, 2025 yr
Launch Price ($) 160 n/a
MSRP ($) n/a 120
Sensors - Proximity Sensor
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 33 W n/a
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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