Samsung Galaxy S25 vs Google Pixel 4a

Compared 2 smartphones : Samsung Galaxy S25 Manufactured in February, 2025, with display 6.2 with chipsetQualcomm Snapdragon 8 Elite, vs Google Pixel 4a, Manufactured in October, 2020 with chipsetQualcomm Snapdragon 730G. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Samsung Galaxy S25
  • Larger display: 6.2in
  • Higher refresh rate: 120Hz
  • Higher battery capacity: 4000mAh vs 3140mAh
  • Newer Bluetooth version: 5.4 vs 5.1
  • Supports newer USB: 3.2 vs 3.1
  • Supports DisplayPort
Reasons to choose Google Pixel 4a
  • Higher pixel density: 443ppi
  • Lighter design: 143g vs 162g

Versions

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

Review

Key Specs Samsung Galaxy S25 and Google Pixel 4a
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 OLED
Size 6.2 in 5.81 in
Resolution 1080x2340 pixels 1080x2340 pixels
Aspect ratio 19.5:9 19.5:9
Pixel density 416 ppi 443 ppi
Refresh rate 120 Hz 60 Hz
Adaptive refresh rate Yes (1-120 Hz) No
Max brightness 2600 nits 700 nits
HDR support Yes HDR10+ Yes HDR10
Touch Sampling Rate 240 Hz n/a
Screen-to-body ratio 91.1 % 82.9 %
Features - DCI-P3
- Always-On Display
Always-On Display
Display test
Peak brightness (auto)
Samsung Galaxy S25
1406 nits
Google Pixel 4a
802 nits
sRGB gamut97.4 %95.3 %
PWM (Flicker)240 Hz255 Hz
Response time2 ms6.2 ms
Contrast∞ Infinite∞ Infinite

Design & Build

Design and ergonomics comparison
Height 146.9 mm (5.78 in) 144 mm (5.67 in)
Width 70.5 mm (2.78 in) 69.4 mm (2.73 in)
Thickness 7.2 mm (0.28 in) 8.2 mm (0.32 in)
Weight 162 g (5.71 oz) 143 g (5.04 oz)
Water resistance IP68 No
Cooling system Vapor chamber n/a
Back panel Glass Plastic
Frame Metal Plastic
Colors - Black
- Silver
- Gray
- Blue
- Green
- Pink
Black
Fingerprint sensor Yes In-Display Yes rear
Screen-to-body ratio
Samsung Galaxy S25
91.1 %
Google Pixel 4a
82.9 %

Performance

Testing Samsung Galaxy S25 and Google Pixel 4a In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Elite Qualcomm Snapdragon 730G
Max Frequency 4470 MHz 2200 MHz
CPU Cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6/3.53 (Oryon (Phoenix M))
- 2/4.32 (Oryon (Phoenix L))
- 6/1.8 (Kryo 470 Silver (Cortex-A55))
- 2/2.2 (Kryo 470 Gold (Cortex-A76))
Process TSMC Samsung
Transistor Size 3 nm 8 nm
Neural Processor Hexagon Hexagon 688
Graphics Adreno 830 Adreno 618
GPU Cores 1536 256
GPU Frequency 1100 MHz 825 MHz
FLOPS 3379.2 GFLOPS 422.4 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Samsung Galaxy S25
3075
Google Pixel 4a
680
Geekbench 6 (Multi-Core)
Samsung Galaxy S25
9822
Google Pixel 4a
1816
Geekbench 6 (Single-Core)3075680
Geekbench 6 (Multi-Core)98221816
Geekbench Compute (GPU)26264n/a
AnTuTu 10
AnTuTu 10
Samsung Galaxy S25
2382973
Google Pixel 4a
357020
CPU580139115287
GPU96129970626
Memory47874178602
UX36279492505
NanoReview Score2382973357020
3DMark Wild Life
3DMark Wild Life
Samsung Galaxy S25
n/a
Google Pixel 4a
1003
Max Surface Temp.n/a41.4 °C
Stabilityn/a99 %
Graphics Testn/a6 fps
Graphics Scoren/a1003

Memory

RAM
RAM Size 12 GB 6 GB
Memory Type LPDDR5X LPDDR4X
Memory Frequency 5333 MHz 2133 MHz
Channels 2 2
Storage
Storage Capacity128 GB128 GB
Storage TypeUFS 4.0UFS 2.1
Memory CardNoNo

Software

OS Android 15 Android 10 (Upgradeable to Android 13)
OS Size 30.1 GB 15 GB
UI Skin One UI 7.0 Stock Android

Battery

Volume 4000 mAh 3140 mAh
Max Charging Power 25 W 18 W
Battery Type Li-ion Li-Po
Removable No No
Wireless Charging Yes (15 W) No
Reverse Charging Yes (Wireless) No
Fast Charging Yes (56% in 30 min) Yes (50% in 25 min)
Full Charge Time 1:17 h 1:27 h
Battery Life Test
Battery Life
Samsung Galaxy S25
24:10
Google Pixel 4a
17:58
Web Browsing09:09 h06:35 h
Video Playback17:15 h11:24 h
Games05:32 h04:08 h
Standby Mode108 h90 h

Main camera

Matrix 50 MP 122 MP
Photo resolution 8160x6120 pixels 4000x3000 pixels
Zoom Optical, 3x Digital
Flash LED Dual LED
Stabilization Optical Optical
8K Recording Yes (Up to 30 fps) No
4K Recording Yes (Up to 60 fps) Yes (Up to 30 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 240 fps (1080p) 120 fps (1080p)
Wide-angle lens 120 ° n/a
Lenses count Standard: 50 MP
Telephoto: 10 MP
Ultra-wide: 12 MP
Standard: 12.2 MP
Features - Bokeh effect
- Pro mode
- RAW support
- Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix50 MP122 MP
Aperturef/1.8f/1.7
Focal length24 mm27 mm
SensorSamsung ISOCELL S5KGN3Sony IMX363
Sensor size1/1.561/2.55
Pixel size1 μm1.4 μm
AutofocusPhase autofocus (Dual Pixel)Phase autofocus (Dual Pixel)
StabilizationOpticalOptical
Telephoto
Matrix10 MPn/a
Aperturef/2.4n/a
Focal length67 mmn/a
SensorSamsung ISOCELL S5K3K1n/a
Sensor size1/3.94n/a
Pixel size1 μmn/a
StabilizationOpticaln/a
Ultra-wide lens
Matrix12 MPn/a
Aperturef/2.2n/a
Focal length13 mmn/a
SensorSony IMX564n/a
Sensor size1/2.55n/a
Pixel size1.4 μmn/a
StabilizationDigitaln/a
Main camera DxOMark results
Photo quality
Samsung Galaxy S25
n/a
Google Pixel 4a
116
Video quality
Samsung Galaxy S25
n/a
Google Pixel 4a
100
Overall camera score
Samsung Galaxy S25
n/a
Google Pixel 4a
100
Bokehn/a55
Previewn/a47
Zoomn/a48

Front camera

Matrix 12 MP 8 MP
Photo resolution 4000x3000 pixels 3264x2448 pixels
Aperture f/2.2 f/2.0
Focal length 26 mm 24 mm
Sensor Samsung S5K3LU Sony IMX355
Sensor size 1/3.2 1/2.8
Pixel size 1.12 μm 1.12 μm
Autofocus Phase autofocus No
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 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/be) 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
- Wi-Fi Display
Bluetooth version 5.4 5.1
Bluetooth features LE LE, A2DP
USB type USB Type-C USB Type-C
USB version 3.2 3.1
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
- QZSS
NFC* Yes Yes
Infrared Port No No
Connectivity
SIM Count*12
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *YesYes
Hybrid SlotNoNo
2G BandsGSM850,GSM900,DCS1800,PCS1900GSM 700 / 800 / 850 / 900 / 1700 / 1800 / 1900 / 2100 / 2600 / 2300 / 2500 / 5200 / 3500 / 600
3G BandsUMTS B1(2100),B2(1900),B4(AWS),B5(850),B8(900)UMTS 850 / 900 / 1700 / 1900 / 2100
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B14/B18/B19/B20/B25/B26/B28/B29/B30/B66/B71)LTE (B600/B700/B800/B850/B900/B1700/B1800/B1900/B2100/B2300/B2500/B2600/B3500/B5200)
LTE categoryn/a15
5G SupportYesNo

Sound

Speakers n/a Stereo
3.5 mm Jack No Yes
FM Radio No No
Dolby Atmos Yes Yes
Speaker Test
Max Volume
Samsung Galaxy S25
91.7 dB
Google Pixel 4a
86 dB

Other

Class Flagship Mid-range
Announced January, 2025 yr August, 2020 yr
Release Date February, 2025 yr October, 2020 yr
Launch Price ($) n/a 350
MSRP ($) 799 n/a
Sensors - Hall Sensor
- Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
- Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included No n/a

Note

Samsung Galaxy S25:

Supports up to 2 eSIMs. The international model has 2 physical SIM slots, while the U.S. model has 1.

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

Results

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

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