Home Phone comparison Samsung Galaxy A31 and OnePlus 15 - Which is better?

Samsung Galaxy A31 vs OnePlus 15

43 out 100
Samsung Galaxy A31
VS
91 out 100
OnePlus 15
Samsung Galaxy A31
OnePlus 15

Compared 2 smartphones : Samsung Galaxy A31 Manufactured in April, 2020, with display 6.4 with chipsetMediatek Helio P65, vs OnePlus 15, Manufactured in October, 2025 with chipsetQualcomm Snapdragon 8 Elite 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 A31
  • Lighter design: 185g vs 211g
  • Supports Dolby Atmos
Reasons to choose OnePlus 15
  • Larger display: 6.78in
  • Higher pixel density: 450ppi
  • Higher refresh rate: 165Hz
  • Higher battery capacity: 7300mAh vs 5000mAh
  • Newer Bluetooth version: 6.0 vs 5
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Infrared port
  • Built-in eSIM
  • Includes charger

Versions

Available versions and configurations
Memory Options - 4/64 GB
- 4/128 GB
- 6/128 GB
- 8/128 GB		 - 12/256 GB
- 12/512 GB
- 16/256 GB
- 16/512 GB
- 16/1024 GB

Review

Key Specs Samsung Galaxy A31 and OnePlus 15
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 A31
vs
OnePlus 15

Display

Display quality comparison
Type Super AMOLED AMOLED
Size 6.4 in 6.78 in
Resolution 1080x2400 pixels 1272x2772 pixels
Aspect ratio 20:9 19.5:9
Pixel density 411 ppi 450 ppi
Refresh rate 60 Hz 165 Hz
Adaptive refresh rate No Yes (1-120 Hz)
Max brightness 600 nits 1800 nits
HDR support No Yes, Dolby Vision
Screen-to-body ratio 84.9 % 91.2 %
Features Always-On Display - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Samsung Galaxy A31
629 nits
OnePlus 15
n/a
sRGB gamut96.8 %n/a
PWM (Flicker)238 Hzn/a
Response time8 msn/a
Contrast∞ Infiniten/a
Sources: NotebookCheck [Samsung Galaxy A31]

Design & Build

Design and ergonomics comparison
Height 159.3 mm (6.27 in) 161.4 mm (6.35 in)
Width 73.1 mm (2.88 in) 76.7 mm (3.02 in)
Thickness 8.6 mm (0.34 in) 8.1 mm (0.32 in)
Weight 185 g (6.53 oz) 211 g (7.44 oz)
Water resistance No IP69
Cooling system n/a Vapor chamber
Back panel Plastic Glass
Frame Plastic Metal
Colors - White
- Black
- Blue
- Red		 - Black
- Gold
- Purple
Fingerprint sensor Yes In-Display Yes, In-Display
Screen-to-body ratio
Samsung Galaxy A31
84.9 %
OnePlus 15
91.2 %

Performance

Testing Samsung Galaxy A31 and OnePlus 15 In benchmarks
Processor
Chipset Mediatek Helio P65 Qualcomm Snapdragon 8 Elite Gen 5
Max Frequency 2000 MHz 4600 MHz
CPU Cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6/1.7 (Cortex-A55)
- 2/2 (Cortex-A75)		 6/3.63 ()
Process TSMC TSMC
Transistor Size 12 nm 3 nm
Neural Processor Yes Hexagon
Graphics Mali-G52 MP2 Adreno 840
GPU Cores 48 1536
GPU Frequency 820 MHz 1200 MHz
FLOPS 78.7 GFLOPS 3686.4 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Samsung Galaxy A31
509
OnePlus 15
3726
Geekbench 6 (Multi-Core)
Samsung Galaxy A31
1553
OnePlus 15
11199
Geekbench 6 (Single-Core)5093726
Geekbench 6 (Multi-Core)155311199
Geekbench Compute (GPU)n/a27829
Sources: Geekbench v6 [OnePlus 15]
AnTuTu 10
AnTuTu 10
Samsung Galaxy A31
197929
OnePlus 15
3434737
CPU74327968935
GPU242181235307
Memory45491489823
UX53893740672
NanoReview Score1979293434737
3DMark Wild Life
3DMark Wild Life
Samsung Galaxy A31
572
OnePlus 15
n/a
Max Surface Temp.45.2 °Cn/a
Stability97 %n/a
Graphics Test3 fpsn/a
Graphics Score572n/a
Sources: 3DMark [Samsung Galaxy A31]
PCMark 3.0
PCMark 3.0
Samsung Galaxy A31
5615
OnePlus 15
n/a
Writing score5825n/a
Web score4447n/a
Video editing4920n/a
Data manipulation4420n/a
NanoReview Score5615n/a

Memory

RAM
RAM Size 4 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 TypeeMMC 5.1UFS 4.1
Memory CardMicroSDNo

Software

OS Android 10 (Upgradeable to Android 12) Android 16
OS Size 27 GB n/a
UI Skin One UI 4.1 OxygenOS 16

Battery

Volume 5000 mAh 7300 mAh
Max Charging Power 15 W 120 W
Battery Type Li-ion Silicon Carbon (Si/C)
Removable No No
Wireless Charging No Yes (50 W)
Reverse Charging No Yes, (Wireless)
Fast Charging Yes Samsung Adaptive Fast Charge (50% in 60 min) Yes (50% in 15 min)
Full Charge Time 2:25 h 0:43 h
Battery Life Test
Battery Life
Samsung Galaxy A31
25:27
OnePlus 15
n/a
Web Browsing10:26 hn/a
Video Playback14:36 hn/a
Games05:44 hn/a
Standby Mode126 hn/a

Main camera

Matrix 48 MP 50 MP
Photo resolution 8000x6000 pixels 8192x6144 pixels
Zoom Digital Optical, 3.5x
Flash LED Dual LED
Stabilization Digital Optical
8K Recording No Yes (Up to 30 fps)
4K Recording No Yes (Up to 120 fps)
1080p Recording Yes (Up to 30 fps) Yes (Up to 60 fps)
Slow Motion No n/a
Wide-angle lens 123 ° 116 °
Lenses count Standard: 48 MP
Ultra-wide: 8 MP
Macro: 5 MP
Depth: 5 MP		 Standard: 50 MP
Telephoto: 50 MP
Ultra-wide: 50 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
SensorSamsung S5KGM2Sony LYTIA-T808
Sensor size1/2.01/1.56
Pixel size0.8 μm1 μm
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalOptical
Telephoto
Matrixn/a50 MP
Aperturen/af/2.8
Focal lengthn/a85 mm
Sensorn/aSamsung S5KJN5
Sensor sizen/a1/2.76
Pixel sizen/a0.64 μm
Stabilizationn/aOptical
Ultra-wide lens
Matrix8 MP50 MP
Aperturef/2.2f/2.0
Focal length13 mm15 mm
Sensorn/aSamsung S5KJN5
Sensor size1/4.01/2.76
Pixel size1.12 μm0.64 μm
StabilizationDigitalDigital

Front camera

Matrix 20 MP 32 MP
Photo resolution 5963x3354 pixels 6560x4928 pixels
Aperture f/2.2 f/2.4
Focal length n/a 21 mm
Sensor CMOS Sony IMX615
Sensor size n/a 1/2.74
Pixel size n/a 0.8 μm
Autofocus No Phase autofocus
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 2160p (4K) at 60 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		 - 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 3.2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort n/a Yes
GPS - GPS
- GLONASS
- Beidou
- Galileo		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC
NFC* Yes Yes
Infrared Port No Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoYes
Hybrid SlotNoNo
2G BandsGSM850, GSM900, DCS1800, PCS1900n/a
3G BandsB1 (2100), B2 (1900), B5(850), B8 (900)n/a
LTE Bands*LTE (B1/B2/B3/B5/B7/B8/B20/B38/B40/B41)n/a
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 A31
78.5 dB
OnePlus 15
n/a

Other

Class Mid-range Flagship
Announced March, 2020 yr October, 2025 yr
Release Date April, 2020 yr October, 2025 yr
Launch Price ($) 210 n/a
MSRP ($) n/a 899
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 Yes, 120 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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

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