Home Phone comparison Samsung Galaxy A51 and OnePlus 15R - Which is better?

Samsung Galaxy A51 vs OnePlus 15R

41 out 100
Samsung Galaxy A51
VS
90 out 100
OnePlus 15R
Samsung Galaxy A51
OnePlus 15R

Compared 2 smartphones : Samsung Galaxy A51 Manufactured in December, 2019, with display 6.5 with chipsetSamsung Exynos 9 Octa 9611, vs OnePlus 15R, Manufactured in January, 2025 with chipsetQualcomm Snapdragon 8 Gen 5. 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 Samsung Galaxy A51
  • Lighter design: 172g vs 214g
  • Supports Dolby Atmos
Reasons to choose OnePlus 15R
  • Larger display: 6.83in
  • Higher pixel density: 450ppi
  • Higher refresh rate: 165Hz
  • Higher battery capacity: 7400mAh vs 4000mAh
  • Newer Bluetooth version: 6.0 vs 5
  • Infrared port

Versions

Available versions and configurations
Memory Options - 4/64 GB
- 4/128 GB
- 6/128 GB
- 8/128 GB
- 8/256 GB		 - 12/256 GB
- 12/512 GB

Review

Key Specs Samsung Galaxy A51 and OnePlus 15R
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:
Samsung Galaxy A51
vs
OnePlus 15R

Display

Display quality comparison
Type Super AMOLED AMOLED
Size 6.5 in 6.83 in
Resolution 1080x2400 pixels 1272x2800 pixels
Aspect ratio 20:9 19.5:9
Pixel density 405 ppi 450 ppi
Refresh rate 60 Hz 165 Hz
Adaptive refresh rate No Yes (60-120 Hz)
Max brightness 400 nits 1800 nits
HDR support No Yes, Dolby Vision
Touch Sampling Rate n/a 300 Hz
Screen-to-body ratio 87.5 % 91 %
Features Always-On Display - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Samsung Galaxy A51
631 nits
OnePlus 15R
n/a
sRGB gamut98.8 %n/a
PWM (Flicker)242 Hzn/a
Response time25 msn/a
Contrast∞ Infiniten/a
Sources: NotebookCheck [Samsung Galaxy A51]

Design & Build

Design and ergonomics comparison
Height 158.5 mm (6.24 in) 163.41 mm (6.43 in)
Width 73.6 mm (2.9 in) 77.04 mm (3.03 in)
Thickness 7.9 mm (0.31 in) 8.3 mm (0.33 in)
Weight 172 g (6.07 oz) 214 g (7.55 oz)
Water resistance No IP69
Cooling system n/a Vapor chamber
Back panel Plastic Glass
Frame Plastic Metal
Colors - White
- Black		 - Black
- Green
- Purple
Fingerprint sensor Yes In-Display Yes, In-Display
Screen-to-body ratio
Samsung Galaxy A51
87.5 %
OnePlus 15R
91 %

Performance

Testing Samsung Galaxy A51 and OnePlus 15R In benchmarks
Processor
Chipset Samsung Exynos 9 Octa 9611 Qualcomm Snapdragon 8 Gen 5
Max Frequency 2300 MHz 3840 MHz
CPU Cores 8 (4 + 4) 8 (2 + 6)
Architecture - 4/1.7 (Cortex-A53)
- 4/2.3 (Cortex-A73)		 6/3.32 ()
Process Samsung TSMC
Transistor Size 10 nm 3 nm
Neural Processor Yes Hexagon
Graphics Mali-G72 MP3 Adreno 829
GPU Cores 54 1024
GPU Frequency 850 MHz 1200 MHz
FLOPS 113.8 GFLOPS 2457.6 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Samsung Galaxy A51
512
OnePlus 15R
2847
Geekbench 6 (Multi-Core)
Samsung Galaxy A51
1556
OnePlus 15R
9422
Geekbench 6 (Single-Core)5122847
Geekbench 6 (Multi-Core)15569422
Geekbench Compute (GPU)n/a20796
Sources: Geekbench v6 [OnePlus 15R]
AnTuTu 10
AnTuTu 10
Samsung Galaxy A51
268760
OnePlus 15R
2969231
CPU83857954408
GPU45166939113
Memory63828385833
UX75909689877
NanoReview Score2687602969231
3DMark Wild Life
3DMark Wild Life
Samsung Galaxy A51
812
OnePlus 15R
n/a
Max Surface Temp.42.2 °Cn/a
Stability95 %n/a
Graphics Test4 fpsn/a
Graphics Score812n/a
Sources: 3DMark [Samsung Galaxy A51]

Memory

RAM
RAM Size - 4 GB
- 6 GB		 12 GB
Memory Type LPDDR4X LPDDR5X
Memory Frequency 1866 MHz 5300 MHz
Channels 2 4
Storage
Storage Capacity- 64 GB
- 128 GB		256 GB
Storage TypeUFS 2.0UFS 4.1
Memory CardMicroSDNo

Software

OS Android 10 (Upgradeable to Android 13) Android 16
OS Size 23 GB n/a
UI Skin One UI 5.1 OxygenOS 16

Battery

Volume 4000 mAh 7400 mAh
Max Charging Power 15 W 80 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging No No
Reverse Charging No Yes
Fast Charging Yes (40% in 35 min) Yes (60% in 20 min)
Full Charge Time 1:50 h n/a
Battery Life Test
Battery Life
Samsung Galaxy A51
17:53
OnePlus 15R
n/a
Web Browsing07:15 hn/a
Video Playback11:25 hn/a
Games04:49 hn/a
Standby Mode81 hn/a

Main camera

Matrix 48 MP 50 MP
Photo resolution 8000x6000 pixels 8192x6144 pixels
Zoom Digital Digital
Flash LED Dual LED
Stabilization Digital Optical
8K Recording No No
4K Recording Yes (Up to 30 fps) Yes (Up to 120 fps)
1080p Recording Yes (Up to 30 fps) Yes (Up to 60 fps)
Slow Motion 960 fps (720p) 240 fps (1080p)
Wide-angle lens 120 ° 112 °
Lenses count Standard: 48 MP
Ultra-wide: 12 MP
Macro: 5 MP
Depth: 5 MP		 Standard: 50 MP
Ultra-wide: 8 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix48 MP50 MP
Aperturef/2.0f/1.8
Focal length26 mm24 mm
SensorSony IMX582Sony IMX906
Sensor size1/21/1.56 (0.64)
Pixel size0.8 μm1 μm
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalOptical
Ultra-wide lens
Matrix12 MP8 MP
Aperturef/2.2f/2.2
Focal length13 mm16 mm
Sensorn/aOmnivision OV08D10
Sensor sizen/a1/4.0 (0.25)
Pixel size1.12 μm1.12 μm
StabilizationDigitalDigital

Front camera

Matrix 32 MP 32 MP
Photo resolution 6560x4928 pixels n/a
Aperture f/2.2 f/2.0
Focal length 26 mm n/a
Sensor Samsung S5KGD1 CMOS
Sensor size 1/2.8 n/a
Pixel size 0.8 μm n/a
Autofocus No n/a
Stabilization Digital Optical
Video resolution 2160p (4K) 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 7 (802.11 a/b/g/n/ac/ax/be)
Wi-Fi features - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5 6.0
Bluetooth features PBAP/PAB, PAN, OPP, MAP, HSP, HID, HFP, DIP, AVRCP, A2DP 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
GPS - GPS
- GLONASS
- Beidou
- Galileo		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
NFC* Yes 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 / 2100 / 2600GSM 850/900/1800/1900MHz
3G BandsUMTS 850 / 900 / 1900 / 2100WCDMA 1/2/4/5/6/8/19
LTE Bands*LTE (B850/B900/B1800/B2100/B2600)LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/B30/B32/B34/B38/B39/B40/B41/B42/B48/B66/B71)
LTE category12n/a
5G SupportNoYes

Sound

Speakers Mono n/a
3.5 mm Jack Yes No
FM Radio Yes No
Dolby Atmos Yes No
Speaker Test
Max Volume
Samsung Galaxy A51
81.7 dB
OnePlus 15R
n/a

Other

Class Mid-range Flagship
Announced December, 2019 yr December, 2025 yr
Release Date December, 2019 yr January, 2025 yr
Launch Price ($) 399 n/a
MSRP ($) n/a 699
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included n/a No
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider OnePlus 15R the clear winner in this comparison.

Survey

Which smartphone would you pick?
0 (0%)
0 (0%)
Total Votes: 0

User comments

Share your opinion or ask questions below