Samsung Galaxy S25 Plus vs Samsung Galaxy S21 FE 5G

Compared 2 smartphones : Samsung Galaxy S25 Plus Manufactured in February, 2025, with display 6.7 with chipsetQualcomm Snapdragon 8 Elite, vs Samsung Galaxy S21 FE 5G, Manufactured in January, 2022with chipsetQualcomm Snapdragon 888. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Samsung Galaxy S25 Plus
  • Larger display: 6.7in
  • Higher pixel density: 513ppi
  • Higher battery capacity: 4900mAh vs 4500mAh
  • Newer Bluetooth version: 5.4 vs 5
  • Supports DisplayPort
  • Built-in eSIM
Reasons to choose Samsung Galaxy S21 FE 5G
  • Lighter design: 177g vs 190g

Versions

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

Review

Key Specs Samsung Galaxy S25 Plus and Samsung Galaxy S21 FE 5G
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

Display

Display quality comparison
Type Dynamic AMOLED Dynamic AMOLED
Size 6.7 in 6.4 in
Resolution 1440x3120 pixels 1080x2340 pixels
Aspect ratio 19.5:9 19.5:9
Pixel density 513 ppi 403 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (1-120 Hz) No
Max brightness 2600 nits 800 nits
HDR support Yes HDR10+ Yes HDR10+
Touch Sampling Rate 240 Hz n/a
Screen-to-body ratio 91.7 % 86.7 %
Features - DCI-P3
- Always-On Display
- DCI-P3
- Always-On Display
Display test
Peak brightness (auto)
Samsung Galaxy S25 Plus
1444 nits
Samsung Galaxy S21 FE 5G
785 nits
sRGB gamut96.8 %97 %
PWM (Flicker)240 Hz247 Hz
Response time1 ms6 ms
Contrast∞ Infinite∞ Infinite

Design & Build

Design and ergonomics comparison
Height 158.4 mm (6.24 in) 155.7 mm (6.13 in)
Width 75.8 mm (2.98 in) 74.5 mm (2.93 in)
Thickness 7.3 mm (0.29 in) 7.9 mm (0.31 in)
Weight 190 g (6.7 oz) 177 g (6.24 oz)
Water resistance IP68 IP68
Cooling system Vapor chamber n/a
Back panel Glass Plastic
Frame Metal Metal
Colors - Black
- Silver
- Gray
- Blue
- Green
- Pink
- White
- Gray
- Green
- Purple
Fingerprint sensor Yes In-Display Yes In-Display
Screen-to-body ratio
Samsung Galaxy S25 Plus
91.7 %
Samsung Galaxy S21 FE 5G
86.7 %

Performance

Testing Samsung Galaxy S25 Plus and Samsung Galaxy S21 FE 5G In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Elite Qualcomm Snapdragon 888
Max Frequency 4470 MHz 2840 MHz
CPU Cores 8 (2 + 6) 8 (1 + 3 + 4)
Architecture - 6/3.53 (Oryon (Phoenix M))
- 2/4.32 (Oryon (Phoenix L))
- 4/1.8 (Kryo 680 Silver (Cortex-A55))
- 3/2.42 (Kryo 680 Gold (Cortex-A78))
- 1/2.84 (Kryo 680 Prime (Cortex-X1))
Process TSMC Samsung
Transistor Size 3 nm 5 nm
Neural Processor Hexagon Hexagon 780
Graphics Adreno 830 Adreno 660
GPU Cores 1536 1024
GPU Frequency 1100 MHz 840 MHz
FLOPS 3379.2 GFLOPS 1290.2 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Samsung Galaxy S25 Plus
3087
Samsung Galaxy S21 FE 5G
1371
Geekbench 6 (Multi-Core)
Samsung Galaxy S25 Plus
9762
Samsung Galaxy S21 FE 5G
3396
Geekbench 6 (Single-Core)30871371
Geekbench 6 (Multi-Core)97623396
Geekbench Compute (GPU)25122n/a
AnTuTu 10
AnTuTu 10
Samsung Galaxy S25 Plus
2136093
Samsung Galaxy S21 FE 5G
894898
CPU466147247848
GPU1014939311997
Memory326456152639
UX328551182414
NanoReview Score2136093894898
3DMark Wild Life
3DMark Wild Life
Samsung Galaxy S25 Plus
n/a
Samsung Galaxy S21 FE 5G
5704
Max Surface Temp.n/a39.1 °C
Stabilityn/a69 %
Graphics Testn/a34 fps
Graphics Scoren/a5704
PCMark 3.0
PCMark 3.0
Samsung Galaxy S25 Plus
n/a
Samsung Galaxy S21 FE 5G
12441
Writing scoren/a14216
Web scoren/a11960
Video editingn/a7049
Data manipulationn/a10196
NanoReview Scoren/a12441

Memory

RAM
RAM Size 12 GB - 6 GB
- 8 GB
Memory Type LPDDR5X LPDDR5
Memory Frequency 5333 MHz 3200 MHz
Channels 2 4
Storage
Storage Capacity- 256 GB
- 512 GB
- 128 GB
- 256 GB
Storage TypeUFS 4.0UFS 3.1
Memory CardNoNo

Software

OS Android 15 Android 12 (Upgradeable to Android 14)
OS Size 29.1 GB 17.5 GB
UI Skin One UI 7.0 One UI 6

Battery

Volume 4900 mAh 4500 mAh
Max Charging Power 45 W 25 W
Battery Type Li-ion Li-ion
Removable No No
Wireless Charging Yes (15 W) Yes (15 W)
Reverse Charging Yes (Wireless) Yes (Wireless)
Fast Charging Yes (75% in 30 min) Yes (51% in 30 min)
Full Charge Time 0:59 h 1:15 h
Battery Life Test
Battery Life
Samsung Galaxy S25 Plus
28:09
Samsung Galaxy S21 FE 5G
18:37
Web Browsing10:20 h06:11 h
Video Playback18:29 h11:05 h
Games06:19 h04:48 h
Standby Mode137 h100 h

Main camera

Matrix 50 MP 12 MP
Photo resolution 8160x6120 pixels 4032x3024 pixels
Zoom Optical, 3x Optical, 3x
Flash LED LED
Stabilization Optical Optical
8K Recording Yes (Up to 30 fps) No
4K Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 240 fps (1080p) 960 fps (720p)
Wide-angle lens 120 ° 123 °
Lenses count Standard: 50 MP
Telephoto: 10 MP
Ultra-wide: 12 MP
Standard: 12 MP
Telephoto: 8 MP
Ultra-wide: 12 MP
Features - Bokeh effect
- Pro mode
- RAW support
- Bokeh effect
- Pro mode
Main lens
Matrix50 MP12 MP
Aperturef/1.8f/1.8
Focal length24 mm26 mm
SensorSamsung ISOCELL S5KGN3Sony IMX555
Sensor size1/1.561/1.76
Pixel size1 μm1.8 μm
AutofocusPhase autofocus (Dual Pixel)Phase autofocus (Dual Pixel)
StabilizationOpticalOptical
Telephoto
Matrix10 MP8 MP
Aperturef/2.4f/2.4
Focal length67 mm76 mm
SensorSamsung ISOCELL S5K3K1Hynix Hi847
Sensor size1/3.941/4.5
Pixel size1 μm1 μm
StabilizationOpticalOptical
Ultra-wide lens
Matrix12 MP12 MP
Aperturef/2.2f/2.2
Focal length13 mm13 mm
SensorSony IMX564Sony IMX258
Sensor size1/2.551/3.0
Pixel size1.4 μm1.12 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Samsung Galaxy S25 Plus
n/a
Samsung Galaxy S21 FE 5G
119
Video quality
Samsung Galaxy S25 Plus
n/a
Samsung Galaxy S21 FE 5G
107
Overall camera score
Samsung Galaxy S25 Plus
n/a
Samsung Galaxy S21 FE 5G
117

Front camera

Matrix 12 MP 32 MP
Photo resolution 4000x3000 pixels 6464x4864 pixels
Aperture f/2.2 f/2.2
Focal length 26 mm 26 mm
Sensor Samsung S5K3LU Sony IMX616
Sensor size 1/3.2 1/2.74
Pixel size 1.12 μm 0.8 μm
Autofocus Phase autofocus No
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 fps 2160p (4K) at 60 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) Wi-Fi 6 (802.11 a/b/g/n/ac/ax)
Wi-Fi features - Dual Band
- Wi-Fi MiMO
- 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 5.4 5
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 3.2 3.2
USB features - Charging
- USB Storage Mode
- OTG
- Charging
- USB Storage Mode
- OTG
DisplayPort Yes DP 1.2 n/a
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- GPS
- GLONASS
- Beidou
- Galileo
NFC* Yes Yes
Infrared Port No No
Connectivity
SIM Count*12
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *YesNo
Hybrid SlotNoNo
2G BandsGSM850,GSM900,DCS1800,PCS1900GSM GSM850, GSM900, DCS1800, PCS1900
3G BandsUMTS B1(2100),B2(1900),B4(AWS),B5(850),B8(900)UMTS B1 (2100), B2 (1900), B4(AWS), B5(850), B8 (900)
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B14/B18/B19/B20/B25/B26/B28/B29/B30/B66/B71)LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/B32/B38/B39/B40/B41/B66)
LTE categoryn/a19
5G SupportYesYes

Sound

Speakers Stereo Stereo
3.5 mm Jack No No
FM Radio No No
Dolby Atmos Yes Yes
Speaker Test
Max Volume
Samsung Galaxy S25 Plus
90.9 dB
Samsung Galaxy S21 FE 5G
88.9 dB

Other

Class Flagship Flagship
Announced January, 2025 yr January, 2022 yr
Release Date February, 2025 yr January, 2022 yr
Launch Price ($) 999 790
Sensors - Hall Sensor
- Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
- Hall Sensor
- Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included No No

Note

Samsung Galaxy S25 Plus:

You can connect up to 2 eSIMs. The international model has 2 physical SIM slots, while the U.S. model has only one.

* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Samsung Galaxy S25 Plus the clear winner in this comparison.

Survey

Which smartphone would you pick?
3 (100%)
0 (0%)
Total Votes: 3

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