Samsung Galaxy S25 vs Samsung Galaxy S23 Ultra

Compared 2 smartphones : Samsung Galaxy S25 Manufactured in February, 2025, with display 6.2 with chipsetQualcomm Snapdragon 8 Elite, vs Samsung Galaxy S23 Ultra, Manufactured in February, 2023with chipsetSnapdragon 8 Gen 2 Mobile Platform for Galaxy. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Samsung Galaxy S25
  • Lighter design: 162g vs 233g
  • Newer Bluetooth version: 5.4 vs 5.3
Reasons to choose Samsung Galaxy S23 Ultra
  • Larger display: 6.8in
  • Higher pixel density: 500ppi
  • Higher battery capacity: 5000mAh vs 4000mAh

Versions

Available versions and configurations
Memory Options - 12/128 GB
- 12/256 GB
- 12/512 GB
- 8/256 GB
- 12/256 GB
- 12/512 GB
- 12/1024 GB

Review

Key Specs Samsung Galaxy S25 and Samsung Galaxy S23 Ultra
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 6.2 in 6.8 in
Resolution 1080x2340 pixels 1440x3088 pixels
Aspect ratio 19.5:9 19.3:9
Pixel density 416 ppi 500 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (1-120 Hz) Yes (1-120 Hz)
Max brightness 2600 nits 850 nits
HDR support Yes HDR10+ Yes HDR10+
Touch Sampling Rate 240 Hz 240 Hz
Screen-to-body ratio 91.1 % 89.5 %
Features - DCI-P3
- Always-On Display
- DCI-P3
- Always-On Display
Display test
Peak brightness (auto)
Samsung Galaxy S25
1406 nits
Samsung Galaxy S23 Ultra
1269 nits
sRGB gamut97.4 %96.9 %
PWM (Flicker)240 Hz240 Hz
Response time2 ms2 ms
Contrast∞ Infinite∞ Infinite

Design & Build

Design and ergonomics comparison
Height 146.9 mm (5.78 in) 163.4 mm (6.43 in)
Width 70.5 mm (2.78 in) 78.1 mm (3.07 in)
Thickness 7.2 mm (0.28 in) 8.9 mm (0.35 in)
Weight 162 g (5.71 oz) 233 g (8.22 oz)
Water resistance IP68 IP68
Cooling system Vapor chamber Vapor chamber
Back panel Glass Glass
Frame Metal Metal
Colors - Black
- Silver
- Gray
- Blue
- Green
- Pink
- White
- Black
- Gray
- Blue
- Green
- Red
- Purple
Fingerprint sensor Yes In-Display Yes In-Display
Screen-to-body ratio
Samsung Galaxy S25
91.1 %
Samsung Galaxy S23 Ultra
89.5 %

Performance

Testing Samsung Galaxy S25 and Samsung Galaxy S23 Ultra In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Elite Snapdragon 8 Gen 2 Mobile Platform for Galaxy
Max Frequency 4470 MHz 3360 MHz
CPU Cores 8 (2 + 6) 8 (1 + 2 + 2 + 3)
Architecture - 6/3.53 (Oryon (Phoenix M))
- 2/4.32 (Oryon (Phoenix L))
- 3/2 (Cortex-A510)
- 2/2.8 (Cortex-A710)
- 2/2.8 (Cortex-A715)
- 1/3.2 (Cortex-X3)
Process TSMC TSMC
Transistor Size 3 nm 4 nm
Neural Processor Hexagon Hexagon
Graphics Adreno 830 Adreno 740
GPU Cores 1536 1536
GPU Frequency 1100 MHz 719 MHz
FLOPS 3379.2 GFLOPS 2089 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Samsung Galaxy S25
3075
Samsung Galaxy S23 Ultra
1976
Geekbench 6 (Multi-Core)
Samsung Galaxy S25
9822
Samsung Galaxy S23 Ultra
5221
Geekbench 6 (Single-Core)30751976
Geekbench 6 (Multi-Core)98225221
Geekbench Compute (GPU)26264n/a
AnTuTu 10
AnTuTu 10
Samsung Galaxy S25
2382973
Samsung Galaxy S23 Ultra
1541246
CPU580139371084
GPU961299600732
Memory478741299004
UX362794270462
NanoReview Score23829731541246
3DMark Wild Life
3DMark Wild Life
Samsung Galaxy S25
n/a
Samsung Galaxy S23 Ultra
12160
Max Surface Temp.n/a34.8 °C
Stabilityn/a64 %
Graphics Testn/a72 fps
Graphics Scoren/a12160
PCMark 3.0
PCMark 3.0
Samsung Galaxy S25
n/a
Samsung Galaxy S23 Ultra
16130
Writing scoren/a19799
Web scoren/a16101
Video editingn/a7815
Data manipulationn/a13142
NanoReview Scoren/a16130

Memory

RAM
RAM Size 12 GB - 8 GB
- 12 GB
Memory Type LPDDR5X LPDDR5X
Memory Frequency 5333 MHz 4200 MHz
Channels 2 4
Storage
Storage Capacity128 GB- 256 GB
- 512 GB
- 1024 GB
Storage TypeUFS 4.0UFS 4.0
Memory CardNoNo

Software

OS Android 15 Android 13 (Upgradeable to Android 14)
OS Size 30.1 GB 39.9 GB
UI Skin One UI 7.0 One UI 6.1

Battery

Volume 4000 mAh 5000 mAh
Max Charging Power 25 W 45 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 (56% in 30 min) Yes (68% in 30 min)
Full Charge Time 1:17 h 0:59 h
Battery Life Test
Battery Life
Samsung Galaxy S25
24:10
Samsung Galaxy S23 Ultra
26:01
Web Browsing09:09 h09:57 h
Video Playback17:15 h15:38 h
Games05:32 h06:22 h
Standby Mode108 h130 h

Main camera

Matrix 50 MP 200 MP
Photo resolution 8160x6120 pixels 16320x12240 pixels
Zoom Optical, 3x Optical, 10x
Flash LED LED
Stabilization Optical Optical
8K Recording Yes (Up to 30 fps) Yes (Up to 30 fps)
4K Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 120 fps)
Slow Motion 240 fps (1080p) 960 fps (1080p)
Wide-angle lens 120 ° 120 °
Lenses count Standard: 50 MP
Telephoto: 10 MP
Ultra-wide: 12 MP
Standard: 200 MP
Telephoto: 10 MP
Telephoto: 10 MP
Ultra-wide: 12 MP
Features - Bokeh effect
- Pro mode
- RAW support
- Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix50 MP200 MP
Aperturef/1.8f/1.7
Focal length24 mm23 mm
SensorSamsung ISOCELL S5KGN3Samsung ISOCELL HP2
Sensor size1/1.561/1.3
Pixel size1 μm0.64 μm
AutofocusPhase autofocus (Dual Pixel)Laser autofocus
StabilizationOpticalOptical
Telephoto
Matrix10 MP10 MP
Aperturef/2.4f/4.9
Focal length67 mm230 mm
SensorSamsung ISOCELL S5K3K1Sony IMX754
Sensor size1/3.941/3.52
Pixel size1 μm1.12 μm
StabilizationOpticalOptical
Ultra-wide lens
Matrix12 MP12 MP
Aperturef/2.2f/2.2
Focal length13 mm13 mm
SensorSony IMX564Sony IMX564
Sensor size1/2.551/2.55
Pixel size1.4 μm1.4 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Samsung Galaxy S25
n/a
Samsung Galaxy S23 Ultra
139
Video quality
Samsung Galaxy S25
n/a
Samsung Galaxy S23 Ultra
137
Overall camera score
Samsung Galaxy S25
n/a
Samsung Galaxy S23 Ultra
140
Bokehn/a70
Previewn/a73
Zoomn/a141

Front camera

Matrix 12 MP 12 MP
Photo resolution 4000x3000 pixels 4000x3000 pixels
Aperture f/2.2 f/2.2
Focal length 26 mm 26 mm
Sensor Samsung S5K3LU Samsung S5K3LU
Sensor size 1/3.2 1/3.24
Pixel size 1.12 μm 1.12 μm
Autofocus Phase autofocus Phase autofocus
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 fps 2160p (4K) at 60 fps
TOF 3D sensor No No
Selfie camera DxOMark results
Photo quality
Samsung Galaxy S25
n/a
Samsung Galaxy S23 Ultra
139
Video quality
Samsung Galaxy S25
n/a
Samsung Galaxy S23 Ultra
145

Connectivity

Wi-Fi version Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be) Wi-Fi 6E (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 5.3
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 Yes DP 1.2
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- GPS
- GLONASS
- Beidou
- Galileo
- QZSS
NFC* Yes Yes
Infrared Port No No
Connectivity
SIM Count*11
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *YesYes
Hybrid SlotNoNo
2G BandsGSM850,GSM900,DCS1800,PCS1900n/a
3G BandsUMTS B1(2100),B2(1900),B4(AWS),B5(850),B8(900)n/a
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B14/B18/B19/B20/B25/B26/B28/B29/B30/B66/B71)n/a
LTE categoryn/a20
5G SupportYesYes

Sound

Speakers n/a Stereo
3.5 mm Jack No No
FM Radio No No
Dolby Atmos Yes Yes
Speaker Test
Max Volume
Samsung Galaxy S25
91.7 dB
Samsung Galaxy S23 Ultra
91.8 dB

Other

Class Flagship Flagship
Announced January, 2025 yr February, 2023 yr
Release Date February, 2025 yr February, 2023 yr
Launch Price ($) n/a 1199
MSRP ($) 799 n/a
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:

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

No clear favorite identified yet; updates may follow as new data arrives.

Survey

Which smartphone would you pick?
3 (37.5%)
5 (62.5%)
Total Votes: 8

User comments

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