Oppo Realme 9 5G vs Samsung Galaxy A51

Compared 2 smartphones : Oppo Realme 9 5G Manufactured in June, 2022, with display 6.6 with chipsetQualcomm Snapdragon 695, vs Samsung Galaxy A51, Manufactured in December, 2019 with chipsetSamsung Exynos 9 Octa 9611. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Oppo Realme 9 5G
  • Larger display: 6.6in
  • Higher refresh rate: 120Hz
  • Higher battery capacity: 5000mAh vs 4000mAh
  • Newer Bluetooth version: 5.1 vs 5
  • Includes charger
Reasons to choose Samsung Galaxy A51
  • Higher pixel density: 405ppi
  • Lighter design: 172g vs 191g
  • Supports Dolby Atmos

Versions

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

Review

Key Specs Oppo Realme 9 5G 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

Display

Display quality comparison
Type IPS LCD Super AMOLED
Size 6.6 in 6.5 in
Resolution 1080x2412 pixels 1080x2400 pixels
Aspect ratio 20:9 20:9
Pixel density 400 ppi 405 ppi
Refresh rate 120 Hz 60 Hz
Adaptive refresh rate No No
Max brightness 550 nits 400 nits
HDR support Yes HDR10 No
Touch Sampling Rate 240 Hz n/a
Screen-to-body ratio 84.7 % 87.5 %
Features DCI-P3 Always-On Display
Display test
Peak brightness (auto)
Oppo Realme 9 5G
559 nits
Samsung Galaxy A51
631 nits
sRGB gamut97.7 %98.8 %
PWM (Flicker)n/a242 Hz
Response time33 ms25 ms
Contrast1178:1∞ Infinite

Design & Build

Design and ergonomics comparison
Height 164.3 mm (6.47 in) 158.5 mm (6.24 in)
Width 75.6 mm (2.98 in) 73.6 mm (2.9 in)
Thickness 8.5 mm (0.33 in) 7.9 mm (0.31 in)
Weight 191 g (6.74 oz) 172 g (6.07 oz)
Water resistance No No
Back panel Plastic Plastic
Frame Plastic Plastic
Colors - White
- Black
- White
- Black
Fingerprint sensor Yes In-Button Yes In-Display
Screen-to-body ratio
Oppo Realme 9 5G
84.7 %
Samsung Galaxy A51
87.5 %

Performance

Testing Oppo Realme 9 5G and Samsung Galaxy A51 In benchmarks
Processor
Chipset Qualcomm Snapdragon 695 Samsung Exynos 9 Octa 9611
Max Frequency 2200 MHz 2300 MHz
CPU Cores 8 (2 + 6) 8 (4 + 4)
Architecture - 6/1.8 (Kryo 660 Silver (Cortex-A55))
- 2/2.2 (Kryo 660 Gold (Cortex-A78))
- 4/1.7 (Cortex-A53)
- 4/2.3 (Cortex-A73)
Process TSMC Samsung
Transistor Size 6 nm 10 nm
Neural Processor Hexagon 686 Yes
Graphics Adreno 619 Mali-G72 MP3
GPU Cores 256 54
GPU Frequency 950 MHz 850 MHz
FLOPS 430.1 GFLOPS 113.8 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Oppo Realme 9 5G
880
Samsung Galaxy A51
512
Geekbench 6 (Multi-Core)
Oppo Realme 9 5G
2155
Samsung Galaxy A51
1556
Geekbench 6 (Single-Core)880512
Geekbench 6 (Multi-Core)21551556
AnTuTu 10
AnTuTu 10
Oppo Realme 9 5G
439749
Samsung Galaxy A51
268760
CPU14535383857
GPU8323845166
Memory9285963828
UX11829975909
NanoReview Score439749268760
3DMark Wild Life
3DMark Wild Life
Oppo Realme 9 5G
n/a
Samsung Galaxy A51
812
Max Surface Temp.n/a42.2 °C
Stabilityn/a95 %
Graphics Testn/a4 fps
Graphics Scoren/a812
PCMark 3.0
PCMark 3.0
Oppo Realme 9 5G
8048
Samsung Galaxy A51
n/a
Writing score10956n/a
Web score8210n/a
Video editing3921n/a
Data manipulation6175n/a
NanoReview Score8048n/a

Memory

RAM
RAM Size 4 GB - 4 GB
- 6 GB
Memory Type LPDDR4X LPDDR4X
Memory Frequency 2133 MHz 1866 MHz
Channels 2 2
Storage
Storage Capacity- 64 GB
- 128 GB
- 64 GB
- 128 GB
Storage TypeUFS 2.2UFS 2.0
Memory CardMicroSDMicroSD

Software

OS Android 12 (Upgradeable to Android 13) Android 10 (Upgradeable to Android 13)
OS Size 14 GB 23 GB
UI Skin Realme UI 4.0 One UI 5.1

Battery

Volume 5000 mAh 4000 mAh
Max Charging Power 18 W 15 W
Battery Type Li-Po Li-Po
Removable No No
Wireless Charging No No
Reverse Charging No No
Fast Charging Yes (50% in 40 min) Yes (40% in 35 min)
Full Charge Time 1:45 h 1:50 h
Battery Life Test
Battery Life
Oppo Realme 9 5G
n/a
Samsung Galaxy A51
17:53
Web Browsingn/a07:15 h
Video Playbackn/a11:25 h
Gamesn/a04:49 h
Standby Moden/a81 h

Main camera

Matrix 50 MP 48 MP
Photo resolution 8192x6144 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 30 fps) Yes (Up to 30 fps)
Slow Motion n/a 960 fps (720p)
Wide-angle lens n/a 120 °
Lenses count Standard: 50 MP
Macro: 2 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
Matrix50 MP48 MP
Aperturef/1.8f/2.0
Focal length27 mm26 mm
SensorSamsung S5KJN1Sony IMX582
Sensor size1/2.761/2
Pixel size0.64 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 16 MP 32 MP
Photo resolution 4920x3264 pixels 6560x4928 pixels
Aperture f/2.1 f/2.2
Focal length 26 mm 26 mm
Sensor CMOS Samsung S5KGD1
Sensor size 1/3.09 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 5.1 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
- OTG
- 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 SlotYesNo
2G BandsGSM 850/900/1800/1900GSM 850 / 900 / 1800 / 2100 / 2600
3G BandsWCDMA B1/B2/B4/B5/B6/B8/B19UMTS 850 / 900 / 1900 / 2100
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B26/B28/B38/B39/B40/B41/B66)LTE (B850/B900/B1800/B2100/B2600)
LTE category1812
5G SupportYesNo

Sound

Speakers Mono Mono
3.5 mm Jack Yes Yes
FM Radio No Yes
Dolby Atmos No Yes
Speaker Test
Max Volume
Oppo Realme 9 5G
84.1 dB
Samsung Galaxy A51
81.7 dB

Other

Class Mid-range Mid-range
Announced May, 2022 yr December, 2019 yr
Release Date June, 2022 yr December, 2019 yr
Launch Price ($) 260 399
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 18 W n/a
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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