Home Phone comparison Oppo Realme C55 and Samsung Galaxy A51 - Which is better?

Oppo Realme C55 vs Samsung Galaxy A51

48 out 100
Oppo Realme C55
VS
41 out 100
Samsung Galaxy A51
Oppo Realme C55
Samsung Galaxy A51

Compared 2 smartphones : Oppo Realme C55 Manufactured in March, 2023, with display 6.72 with chipsetMediaTek Helio G88, vs Samsung Galaxy A51, Manufactured in December, 2019with chipsetSamsung Exynos 9 Octa 9611. 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
  • Larger display: 6.72in
  • Higher refresh rate: 90Hz
  • Higher battery capacity: 5000mAh vs 4000mAh
  • Newer Bluetooth version: 5.2 vs 5
  • Includes charger
Reasons to choose Samsung Galaxy A51
  • Higher pixel density: 405ppi
  • Lighter design: 172g vs 189.5g
  • Supports Dolby Atmos

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		 - 4/64 GB
- 4/128 GB
- 6/128 GB
- 8/128 GB
- 8/256 GB

Review

Key Specs Oppo Realme C55 and Samsung Galaxy A51
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
Smartphones:
Oppo Realme C55
vs
Samsung Galaxy A51

Display

Display quality comparison
Type IPS LCD Super AMOLED
Size 6.72 in 6.5 in
Resolution 1080x2400 pixels 1080x2400 pixels
Aspect ratio 20:9 20:9
Pixel density 392 ppi 405 ppi
Refresh rate 90 Hz 60 Hz
Adaptive refresh rate No No
Max brightness 680 nits 400 nits
HDR support No No
Touch Sampling Rate 180 Hz n/a
Screen-to-body ratio 86.7 % 87.5 %
Features n/a Always-On Display
Display test
Peak brightness (auto)
Oppo Realme C55
655 nits
Samsung Galaxy A51
631 nits
sRGB gamut100 %98.8 %
PWM (Flicker)n/a242 Hz
Response time21 ms25 ms
Contrast1471:1∞ Infinite
Sources: NotebookCheck [Oppo Realme C55], [Samsung Galaxy A51]

Design & Build

Design and ergonomics comparison
Height 165.6 mm (6.52 in) 158.5 mm (6.24 in)
Width 75.9 mm (2.99 in) 73.6 mm (2.9 in)
Thickness 7.89 mm (0.31 in) 7.9 mm (0.31 in)
Weight 189.5 g (6.68 oz) 172 g (6.07 oz)
Water resistance No No
Back panel Plastic Plastic
Frame Plastic Plastic
Colors - Blue
- Green
- Yellow		 - White
- Black
Fingerprint sensor Yes In-Button Yes In-Display
Screen-to-body ratio
Oppo Realme C55
86.7 %
Samsung Galaxy A51
87.5 %

Performance

Testing Oppo Realme C55 and Samsung Galaxy A51 In benchmarks
Processor
Chipset MediaTek Helio G88 Samsung Exynos 9 Octa 9611
Max Frequency 2000 MHz 2300 MHz
CPU Cores 8 (2 + 6) 8 (4 + 4)
Architecture - 6/1.8 (Cortex-A55)
- 2/2 (Cortex-A75)		 - 4/1.7 (Cortex-A53)
- 4/2.3 (Cortex-A73)
Process TSMC Samsung
Transistor Size 12 nm 10 nm
Neural Processor MediaTek APU Yes
Graphics Mali-G52 MP2 Mali-G72 MP3
GPU Cores 48 54
GPU Frequency 1000 MHz 850 MHz
FLOPS 96 GFLOPS 113.8 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Oppo Realme C55
425
Samsung Galaxy A51
512
Geekbench 6 (Multi-Core)
Oppo Realme C55
1413
Samsung Galaxy A51
1556
Geekbench 6 (Single-Core)425512
Geekbench 6 (Multi-Core)14131556
AnTuTu 10
AnTuTu 10
Oppo Realme C55
274070
Samsung Galaxy A51
268760
CPU8173483857
GPU4192045166
Memory7495963828
UX7545775909
NanoReview Score274070268760
3DMark Wild Life
3DMark Wild Life
Oppo Realme C55
742
Samsung Galaxy A51
812
Max Surface Temp.47.8 °C42.2 °C
Stability98 %95 %
Graphics Test4 fps4 fps
Graphics Score742812
Sources: 3DMark [Oppo Realme C55], [Samsung Galaxy A51]
PCMark 3.0
PCMark 3.0
Oppo Realme C55
8633
Samsung Galaxy A51
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
- 6 GB
Memory Type LPDDR4X LPDDR4X
Memory Frequency 1800 MHz 1866 MHz
Channels 2 2
Storage
Storage Capacity- 128 GB
- 256 GB		- 64 GB
- 128 GB
Storage TypeeMMC 5.1UFS 2.0
Memory CardMicroSDMicroSD

Software

OS Android 13 (Upgradeable to Android 14) Android 10 (Upgradeable to Android 13)
OS Size 20 GB 23 GB
UI Skin Realme UI 5.0 One UI 5.1

Battery

Volume 5000 mAh 4000 mAh
Max Charging Power 33 W 15 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 (40% in 35 min)
Full Charge Time 1:09 h 1:50 h
Battery Life Test
Battery Life
Oppo Realme C55
22:19
Samsung Galaxy A51
17:53
Web Browsing07:44 h07:15 h
Video Playback12:22 h11:25 h
Games05:14 h04:49 h
Standby Mode124 h81 h

Main camera

Matrix 64 MP 48 MP
Photo resolution 9248x6944 pixels 8000x6000 pixels
Zoom Digital Digital
Flash LED LED
Stabilization Digital Digital
8K Recording No No
4K Recording No Yes (Up to 30 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 30 fps)
Slow Motion 120 fps (720p) 960 fps (720p)
Wide-angle lens n/a 120 °
Lenses count Standard: 64 MP
Depth: 2 MP		 Standard: 48 MP
Ultra-wide: 12 MP
Macro: 5 MP
Depth: 5 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
Main lens
Matrix64 MP48 MP
Aperturen/af/2.0
Focal lengthn/a26 mm
SensorOmnivision OV64BSony IMX582
Sensor size1/21/2
Pixel size0.7 μm0.8 μm
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalDigital
Ultra-wide lens
Matrixn/a12 MP
Aperturen/af/2.2
Focal lengthn/a13 mm
Pixel sizen/a1.12 μm
Stabilizationn/aDigital

Front camera

Matrix 8 MP 32 MP
Photo resolution 3264x2448 pixels 6560x4928 pixels
Aperture f/2.0 f/2.2
Focal length n/a 26 mm
Sensor CMOS Samsung S5KGD1
Sensor size n/a 1/2.8
Pixel size n/a 0.8 μm
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 2160p (4K) 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
Bluetooth features LE PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB Storage Mode		 - Charging
- USB Storage Mode
- OTG
GPS - GPS
- GLONASS
- Beidou
- Galileo		 - GPS
- GLONASS
- Beidou
- Galileo
NFC* Varies by region Yes
Infrared Port No No
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM 850/900/1800/1900GSM 850 / 900 / 1800 / 2100 / 2600
3G BandsWCDMA Bands 1/5/8UMTS 850 / 900 / 1900 / 2100
LTE Bands*LTE (B1/B3/B5/B8/B38/B40/B41)LTE (B850/B900/B1800/B2100/B2600)
LTE category712
5G SupportNoNo

Sound

Speakers Mono Mono
3.5 mm Jack Yes Yes
FM Radio No Yes
Dolby Atmos No Yes
Speaker Test
Max Volume
Oppo Realme C55
80.6 dB
Samsung Galaxy A51
81.7 dB

Other

Class Budget Mid-range
Announced March, 2023 yr December, 2019 yr
Release Date March, 2023 yr December, 2019 yr
Launch Price ($) 160 399
Sensors - Proximity Sensor
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- 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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