Home Phone comparison OnePlus 12 and Samsung Galaxy M21 - Which is better?

OnePlus 12 vs Samsung Galaxy M21

86 out 100
OnePlus 12
VS
45 out 100
Samsung Galaxy M21
OnePlus 12
Samsung Galaxy M21

Compared 2 smartphones : OnePlus 12 Manufactured in February, 2024, with display 6.82 with chipsetQualcomm Snapdragon 8 Gen 3, vs Samsung Galaxy M21, Manufactured in March, 2020 with chipsetSamsung Exynos 7 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 OnePlus 12
  • Larger display: 6.82in
  • Higher pixel density: 510ppi
  • Higher refresh rate: 120Hz
  • Newer Bluetooth version: 5.4 vs 5
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Infrared port
  • Built-in eSIM
  • Includes charger
Reasons to choose Samsung Galaxy M21
  • Lighter design: 188g vs 220g
  • Higher battery capacity: 6000mAh vs 5400mAh

Versions

Available versions and configurations
Memory Options - 12/256 GB
- 16/256 GB
- 16/512 GB
- 16/1024 GB
- 24/1024 GB		 - 4/64 GB
- 6/128 GB

Review

Key Specs OnePlus 12 and Samsung Galaxy M21
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:
OnePlus 12
vs
Samsung Galaxy M21

Display

Display quality comparison
Type AMOLED Super AMOLED
Size 6.82 in 6.4 in
Resolution 1440x3168 pixels 1080x2340 pixels
Aspect ratio 19.8:9 19.5:9
Pixel density 510 ppi 403 ppi
Refresh rate 120 Hz 60 Hz
Adaptive refresh rate Yes (1-120 Hz) No
Max brightness 1600 nits 630 nits
HDR support Yes HDR10+ No
Touch Sampling Rate 240 Hz n/a
Screen-to-body ratio 91.3 % 84.2 %
Features - DCI-P3
- Always-On Display
- DC dimming		 Always-On Display
Display test
Peak brightness (auto)
OnePlus 12
1149 nits
Samsung Galaxy M21
608 nits
sRGB gamut99.5 %141.3 %
PWM (Flicker)n/a215 Hz
Response time11 ms9 ms
Contrast∞ Infinite∞ Infinite
Sources: NotebookCheck [OnePlus 12], [Samsung Galaxy M21]

Design & Build

Design and ergonomics comparison
Height 163.3 mm (6.43 in) 159 mm (6.26 in)
Width 75.8 mm (2.98 in) 75.1 mm (2.96 in)
Thickness 9.15 mm (0.36 in) 8.9 mm (0.35 in)
Weight 220 g (7.76 oz) 188 g (6.63 oz)
Water resistance IP65 No
Cooling system Vapor chamber n/a
Back panel Glass Plastic
Frame Metal Plastic
Colors - White
- Black
- Green		 - Black
- Blue
- Green
Fingerprint sensor Yes In-Display Yes rear
Screen-to-body ratio
OnePlus 12
91.3 %
Samsung Galaxy M21
84.2 %

Performance

Testing OnePlus 12 and Samsung Galaxy M21 In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Gen 3 Samsung Exynos 7 Octa 9611
Max Frequency 3300 MHz 2300 MHz
CPU Cores 8 (1 + 3 + 2 + 2) 8 (4 + 4)
Architecture - 2/2.27 (Cortex-A520)
- 2/2.96 (Cortex-A720)
- 3/3.15 (Cortex-A720)
- 1/3.3 (Cortex-X4)		 - 4/1.7 (Cortex-A53)
- 4/2.3 (Cortex-A73)
Process TSMC Samsung
Transistor Size 4 nm 10 nm
Neural Processor Hexagon Yes
Graphics Adreno 750 Mali-G72 MP3
GPU Cores 1536 54
GPU Frequency 903-1000 MHz 850 MHz
FLOPS 2774 GFLOPS 113.8 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
OnePlus 12
2314
Samsung Galaxy M21
514
Geekbench 6 (Multi-Core)
OnePlus 12
7063
Samsung Galaxy M21
1558
Geekbench 6 (Single-Core)2314514
Geekbench 6 (Multi-Core)70631558
Sources: Geekbench v6 [OnePlus 12]
AnTuTu 10
AnTuTu 10
OnePlus 12
1927806
Samsung Galaxy M21
266455
CPU37520776468
GPU82238745756
Memory38926170269
UX34095173962
NanoReview Score1927806266455
3DMark Wild Life
3DMark Wild Life
OnePlus 12
17208
Samsung Galaxy M21
816
Max Surface Temp.50.5 °C44.1 °C
Stability70 %73 %
Graphics Test103 fps4 fps
Graphics Score17208816
Sources: 3DMark [OnePlus 12], [Samsung Galaxy M21]
PCMark 3.0
PCMark 3.0
OnePlus 12
13384
Samsung Galaxy M21
n/a
Writing score17540n/a
Web score12385n/a
Video editing6200n/a
Data manipulation13585n/a
NanoReview Score13384n/a

Memory

RAM
RAM Size - 12 GB
- 16 GB
- 24 GB		 - 4 GB
- 6 GB
Memory Type LPDDR5X LPDDR4X
Memory Frequency 4266 MHz 1866 MHz
Channels 4 2
Storage
Storage Capacity- 256 GB
- 512 GB
- 1024 GB		- 64 GB
- 128 GB
Storage TypeUFS 4.0UFS 2.1
Memory CardNoMicroSD

Software

OS Android 14 (Upgradeable to Android 15) Android 10.0 (Upgradeable to Android 12.0)
OS Size 30 GB 14.5 GB
UI Skin OxygenOS 15 One Ui 4.1

Battery

Volume 5400 mAh 6000 mAh
Max Charging Power 100 W 15 W
Battery Type Li-Po Li-ion
Removable No No
Wireless Charging Yes (50 W) No
Reverse Charging Yes (Wireless) No
Fast Charging Yes (70% in 15 min) Yes Samsung Adaptive Fast Charge (25% in 30 min)
Full Charge Time 0:24 h 2:35 h
Battery Life Test
Battery Life
OnePlus 12
28:16
Samsung Galaxy M21
24:03
Web Browsing13:10 h10:07 h
Video Playback18:49 h13:59 h
Games06:05 h05:35 h
Standby Mode114 h115 h

Main camera

Matrix 50 MP 48 MP
Photo resolution 8192x6144 pixels 8000x6000 pixels
Zoom Optical, 3x Digital
Flash Dual LED LED
Stabilization Optical Digital
8K Recording Up to 24FPS No
4K Recording Yes (Up to 60 fps) Yes (Up to 30 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 30 fps)
Slow Motion 960 fps (1080p) 240 fps (720p)
Wide-angle lens 114 ° 123 °
Lenses count Standard: 50 MP
Telephoto: 64 MP
Ultra-wide: 48 MP		 Standard: 48 MP
Ultra-wide: 8 MP
Depth: 5 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
Main lens
Matrix50 MP48 MP
Aperturef/1.6f/2.0
Focal length23 mm26 mm
SensorSony LYT-T808Samsung S5KGM2
Sensor size1/1.431/2.0
Pixel size1.12 μm0.8 μm
AutofocusPhase autofocus (Dual Pixel)Phase autofocus
StabilizationOpticalDigital
Telephoto
Matrix64 MPn/a
Aperturef/2.6n/a
Focal length70 mmn/a
SensorOmnivision OV64Bn/a
Sensor size1/2n/a
Pixel size0.7 μmn/a
StabilizationOpticaln/a
Ultra-wide lens
Matrix48 MP8 MP
Aperturef/2.2f/2.2
Focal length14 mm12 mm
SensorSony IMX581n/a
Sensor size1/21/4.0
Pixel size0.8 μm1.12 μm
StabilizationDigitalDigital

Front camera

Matrix 32 MP 20 MP
Photo resolution 6560x4928 pixels 5184x3888 pixels
Aperture f/2.4 f/2.0
Focal length 21 mm 26 mm
Sensor Sony IMX615 CMOS
Sensor size 1/2.74 n/a
Pixel size 0.8 μm n/a
Autofocus No No
Stabilization Digital Digital
Video resolution 2160p (4K) at 30 fps 1080p (Full HD) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 7 (802.11 a/b/g/n/ac/ax) Wi-Fi 5 (802.11 a/b/g/n/ac)
Wi-Fi features - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display		 - Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
Bluetooth version 5.4 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 3.2 2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort Yes n/a
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC		 - GPS
- GLONASS
- Beidou
- Galileo
NFC* Yes Yes
Infrared Port Yes No
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *YesNo
Hybrid SlotNoNo
2G BandsGSM 850/900/1800/1900MHzGSM850, GSM900, DCS1800, PCS1900
3G BandsWCDMA 1/2/4/5/6/8/19B1 (2100), B2 (1900), B5(850), B8 (900)
LTE Bands*LTE (B/B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/B28B/B30/B32/B66/B71)LTE (B1/B3/B5/B7/B8/B20/B38/B40/B41)
LTE category2012
5G SupportYesNo

Sound

Speakers Stereo Mono
3.5 mm Jack No Yes
FM Radio No Yes
Dolby Atmos Yes Yes
Speaker Test
Max Volume
OnePlus 12
82.6 dB
Samsung Galaxy M21
83.8 dB

Other

Class Flagship Mid-range
Announced December, 2023 yr March, 2020 yr
Release Date February, 2024 yr March, 2020 yr
Launch Price ($) 799 210
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 100 W n/a
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider OnePlus 12 the clear winner in this comparison.

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