Home Phone comparison Oppo Realme 9 and Samsung Galaxy A51 - Which is better?

Oppo Realme 9 vs Samsung Galaxy A51

49 out 100
Oppo Realme 9
VS
41 out 100
Samsung Galaxy A51
Oppo Realme 9
Samsung Galaxy A51

Compared 2 smartphones : Oppo Realme 9 Manufactured in April, 2022, with display 6.4 with chipsetQualcomm Snapdragon 680, vs Samsung Galaxy A51, Manufactured in December, 2019 with 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 9
  • Higher pixel density: 411ppi
  • Higher refresh rate: 90Hz
  • Higher battery capacity: 5000mAh vs 4000mAh
  • Newer Bluetooth version: 5.1 vs 5
  • Includes charger
Reasons to choose Samsung Galaxy A51
  • Larger display: 6.5in
  • Lighter design: 172g vs 178g
  • Supports Dolby Atmos

Versions

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

Review

Key Specs Oppo Realme 9 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 9
vs
Samsung Galaxy A51

Display

Display quality comparison
Type Super AMOLED Super AMOLED
Size 6.4 in 6.5 in
Resolution 1080x2400 pixels 1080x2400 pixels
Aspect ratio 20:9 20:9
Pixel density 411 ppi 405 ppi
Refresh rate 90 Hz 60 Hz
Adaptive refresh rate No No
Max brightness 430 nits 400 nits
HDR support No No
Touch Sampling Rate 360 Hz n/a
Screen-to-body ratio 84.2 % 87.5 %
Features - DCI-P3
- Always-On Display		 Always-On Display
Display test
Peak brightness (auto)
Oppo Realme 9
642 nits
Samsung Galaxy A51
631 nits
sRGB gamutn/a98.8 %
PWM (Flicker)n/a242 Hz
Response timen/a25 ms
Contrastn/a∞ Infinite
Sources: NotebookCheck [Samsung Galaxy A51]

Design & Build

Design and ergonomics comparison
Height 160.2 mm (6.31 in) 158.5 mm (6.24 in)
Width 73.3 mm (2.89 in) 73.6 mm (2.9 in)
Thickness 7.99 mm (0.31 in) 7.9 mm (0.31 in)
Weight 178 g (6.28 oz) 172 g (6.07 oz)
Water resistance IP54 No
Back panel Plastic Plastic
Frame Plastic Plastic
Colors - White
- Black
- Gold		 - White
- Black
Fingerprint sensor Yes In-Display Yes In-Display
Screen-to-body ratio
Oppo Realme 9
84.2 %
Samsung Galaxy A51
87.5 %

Performance

Testing Oppo Realme 9 and Samsung Galaxy A51 In benchmarks
Processor
Chipset Qualcomm Snapdragon 680 Samsung Exynos 9 Octa 9611
Max Frequency 2400 MHz 2300 MHz
CPU Cores 8 (4 + 4) 8 (4 + 4)
Architecture - 4/1.9 (Kryo 265 Silver (Cortex-A53))
- 4/2.4 (Kryo 265 Gold (Cortex-A73))		 - 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 610 Mali-G72 MP3
GPU Cores 128 54
GPU Frequency 1114 MHz 850 MHz
FLOPS 284 GFLOPS 113.8 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Oppo Realme 9
413
Samsung Galaxy A51
512
Geekbench 6 (Multi-Core)
Oppo Realme 9
1425
Samsung Galaxy A51
1556
Geekbench 6 (Single-Core)413512
Geekbench 6 (Multi-Core)14251556
Sources: Geekbench v6 [Oppo Realme 9]
AnTuTu 10
AnTuTu 10
Oppo Realme 9
317925
Samsung Galaxy A51
268760
CPU11118383857
GPU3995045166
Memory8290363828
UX8388975909
NanoReview Score317925268760
3DMark Wild Life
3DMark Wild Life
Oppo Realme 9
446
Samsung Galaxy A51
812
Max Surface Temp.n/a42.2 °C
Stability99 %95 %
Graphics Test2 fps4 fps
Graphics Score446812
Sources: 3DMark [Oppo Realme 9], [Samsung Galaxy A51]
PCMark 3.0
PCMark 3.0
Oppo Realme 9
8053
Samsung Galaxy A51
n/a
Writing score10149n/a
Web score7446n/a
Video editing4322n/a
Data manipulation5731n/a
NanoReview Score8053n/a

Memory

RAM
RAM Size - 6 GB
- 8 GB		 - 4 GB
- 6 GB
Memory Type LPDDR4X LPDDR4X
Memory Frequency 2133 MHz 1866 MHz
Channels 2 2
Storage
Storage Capacity128 GB- 64 GB
- 128 GB
Storage TypeUFS 2.2UFS 2.0
Memory CardMicroSDMicroSD

Software

OS Android 12 (Upgradeable to Android 14) Android 10 (Upgradeable to Android 13)
OS Size n/a 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 (50% in 30 min) Yes (40% in 35 min)
Full Charge Time 1:16 h 1:50 h
Battery Life Test
Battery Life
Oppo Realme 9
26:31
Samsung Galaxy A51
17:53
Web Browsing09:51 h07:15 h
Video Playback14:59 h11:25 h
Games06:05 h04:49 h
Standby Mode140 h81 h

Main camera

Matrix 108 MP 48 MP
Photo resolution 12000x9000 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 120 fps (720p) 960 fps (720p)
Wide-angle lens 120 ° 120 °
Lenses count Standard: 108 MP
Ultra-wide: 8 MP
Macro: 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
Matrix108 MP48 MP
Aperturef/1.8f/2.0
Focal length26 mm26 mm
SensorSamsung HM6Sony IMX582
Sensor size1/1.671/2
Pixel size0.64 μm0.8 μm
AutofocusPhase autofocus (Dual Pixel)Phase autofocus
StabilizationDigitalDigital
Ultra-wide lens
Matrix8 MP12 MP
Aperturef/2.2f/2.2
Focal lengthn/a13 mm
SensorOmniVision OV08D10n/a
Sensor size1/4n/a
Pixel size1.12 μm1.12 μm
StabilizationNoDigital

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 Sony IMX471 Samsung S5KGD1
Sensor size 1/3.13 1/2.8
Pixel size 1 μm 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, A2DP 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 SlotNoNo
2G BandsGSM/GPRS/EDGE 850/900/1800/1900GSM 850 / 900 / 1800 / 2100 / 2600
3G BandsWCDMA 1/5/8UMTS 850 / 900 / 1900 / 2100
LTE Bands*LTE (B1/B3/B5/B8/B38/B40/B41)LTE (B850/B900/B1800/B2100/B2600)
LTE categoryn/a12
5G SupportNoNo

Sound

Speakers Mono Mono
3.5 mm Jack Yes Yes
FM Radio No Yes
Dolby Atmos n/a Yes
Speaker Test
Max Volume
Oppo Realme 9
n/a
Samsung Galaxy A51
81.7 dB

Other

Class Mid-range Mid-range
Announced April, 2022 yr December, 2019 yr
Release Date April, 2022 yr December, 2019 yr
Launch Price ($) 320 399
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 33 W n/a
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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