Samsung Galaxy S25 Ultra vs S23 Plus

Here we compared two flagship smartphones: the 6.9-inch Samsung Galaxy S25 Ultra (with Qualcomm Snapdragon 8 Elite) that was released on January 22, 2025, against the Samsung Galaxy S23 Plus, which is powered by Snapdragon 8 Gen 2 Mobile Platform for Galaxy and came out 2 years before. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.

Select the amount of RAM to evaluate performance and value for money more precisely
Memory

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Samsung Galaxy S25 Ultra
  • 79% better performance in AnTuTu Benchmark (3128K versus 1744K)
  • Better camera quality (According to DxOMark rating)
  • 27% higher pixel density (498 vs 393 PPI)
  • Shows 8% longer battery life (28:43 vs 26:32 hours)
  • The rear camera has a 5x optical zoom
  • Has 50% more RAM: 12GB versus 8GB
  • Newer Bluetooth version (v5.4)
  • Has a 0.3 inch larger screen size
  • Compatible with Wi-Fi 7 wireless networks
  • Delivers 18% higher peak brightness (1429 against 1216 nits)
  • The phone is 2 years newer
Reasons to consider the Samsung Galaxy S23 Plus
  • Slow-motion recording at 960FPS
  • Weighs 23 grams less

Review

Evaluation of Samsung Galaxy S25 Ultra and S23 Plus crucial features
Display
Screen quality, color accuracy, brightness
Camera
Photo and video recording quality
Performance
CPU and memory performance (apps, system)
Gaming
Capabilities for playing modern games
Battery
Battery life, charging type and speed
Connectivity
Networks, ports, data transmission
NanoReview Score
Final comparison evaluation
Select your primary usage scenario to get a more accurate NanoReview Score
📱 Primary usage:

Value for money (Beta)

Should I update?
No 80% Yes
Yes, this is a clear and meaningful upgrade.
Updating from Samsung Galaxy S23 Plus to Samsung Galaxy S25 Ultra is a clear step forward, and the improvements should be easy to notice.
Main improvements: gaming, performance, and camera.

Tests and specifications

Comparison table of technical specifications and tests

Display

Type Dynamic AMOLED Dynamic AMOLED
Size 6.9 inches 6.6 inches
Resolution 1440 x 3120 pixels 1080 x 2340 pixels
Aspect ratio 19.5:9 19.5:9
PPI 498 ppi 393 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (1-120 Hz) Yes (24-120 Hz)
Max rated brightness - 1200 nits
Max rated brightness in HDR 2600 nits 1750 nits
HDR support Yes, HDR10+ Yes, HDR10+
Touch sampling rate 240 Hz -
Screen protection Corning Gorilla Armor 2 Gorilla Glass Victus 2
Screen-to-body ratio 92.4% 89%
Display features - DCI-P3
- Always-On Display
- DC Dimming
- DCI-P3
- Always-On Display
Display tests
RGB color space 97.7% 97.4%
PWM 240 Hz 240 Hz
Response time 1 ms 1 ms
Contrast ∞ Infinity ∞ Infinity
Screen space comparison
Galaxy S25 Ultra
6.9″ (19.5:9 ratio) = 18.1 in2
Galaxy S23 Plus
6.6″ (19.5:9 ratio) = 16.6 in2
~9% more screen space
Peak brightness test (auto)
1429 nits
1216 nits
Sources: NotebookCheck [3], [4]

Design and build

Height 162.8 mm (6.41 inches) 157.8 mm (6.21 inches)
Width 77.6 mm (3.06 inches) 76.2 mm (3 inches)
Thickness 8.2 mm (0.32 inches) 7.6 mm (0.3 inches)
Weight 218 g (7.69 oz) 195 g (6.88 oz)
Waterproof IP68 IP68
Advanced cooling Vapor chamber Vapor chamber
Rear material Glass Glass
Frame material Metal Metal
Colors Black, Silver, Gray, Blue White, Black, Gray, Green, Purple, Yellow
Fingerprint scanner Yes, in-display Yes, in-display
Repairability Good (3.23/5) -
Drop resistance Excellent (A) · 270 drops -
Screen-to-body ratio

Performance

Chipset specifications of Samsung Galaxy S25 Ultra and Samsung Galaxy S23 Plus
SoC
Chipset Qualcomm Snapdragon 8 Elite Snapdragon 8 Gen 2 Mobile Platform for Galaxy
Max clock 4470 MHz 3360 MHz
CPU cores 8 (2 + 6) 8 (1 + 2 + 2 + 3)
Architecture - 6 cores at 3.53 GHz: Oryon (Phoenix M)
- 2 cores at 4.32 GHz: Oryon (Phoenix L)
- 3 cores at 2 GHz: Cortex-A510
- 2 cores at 2.8 GHz: Cortex-A710
- 2 cores at 2.8 GHz: Cortex-A715
- 1 core at 3.2 GHz: Cortex-X3
L3 cache 8 MB 8 MB
Manufacturing TSMC TSMC
Lithography process 3 nanometers 4 nanometers
Neural processor (NPU) Hexagon Hexagon
GPU
Graphics Adreno 830 Adreno 740
GPU shading units 1536 1536
GPU clock 1100 MHz 680 MHz
FLOPS ~3379.2 GFLOPS ~2089 GFLOPS

Benchmarks

Benchmark comparison of Samsung Galaxy S25 Ultra and Samsung Galaxy S23 Plus
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
Compute Score (GPU)
Compute Score (GPU) 26581 8934
Single-core score 3202 2064
Multi-core score 10347 5334
Sources: Geekbench [3], [4]
AnTuTu Benchmark 11
3128552
1744323
CPU 987646 581203
GPU 1190760 446806
Memory 362214 272465
UX 587932 443849
Total score 3128552 1744323
Samples [66 tests] [23 tests]
3DMark Steel Nomad Light
Stability 61% 79%
Graphics test 17 FPS 8 FPS
Graphics score 2272 1068
3DMark Solar Bay
Stability - 78%
Graphics test 40 FPS 20 FPS
Section 1 50 FPS 23 FPS
Section 2 40 FPS 20 FPS
Section 3 29 FPS 18 FPS
Graphics score 10441 5364
3DMark Wild Life Extreme
Stability 56% 66%
Graphics test 34 FPS 22 FPS
Graphics score 5827 3712
Sources: 3DMark [5], [6]
PCMark 3.0
Web score 21582 14728
Video editing 8625 7866
Photo editing 34425 33422
Data manipulation 17556 12880
Writing score 26844 18951

Recent User Tests

The latest benchmark tests that have been submitted by users
Samsung Galaxy S25 Ultra
DateBenchmarkResult
📘 2026-09-29 (VortexGen)AnTuTu 123414404
📘 2026-09-06 (Trexsotiy)Battery lifeSOT 12:30 / 03:16
📘 2026-09-02 -> Mohamed_136Battery lifeSOT 8:02 / 17:11
📘 2026-08-29 (PaWK)AnTuTu 113034536
📘 2026-08-23 (Apple Slayer)AnTuTu 113254557
Samsung Galaxy S23 Plus
DateBenchmarkResult
📘 2026-09-26 (Moha_X)AnTuTu 121931558
📘 2026-09-26 (Bo)AnTuTu 121822126
📘 2026-09-25 (Ishmael Erraman)Geekbench 7 GPU3238
📘 2026-09-25 (Ishmael Erraman)Geekbench 7 CPU1714 / 4802
📘 2026-09-25 (Ishmael Erraman)Geekbench 6 GPU9058

Memory

RAM
RAM size 12 GB 8 GB
Memory type LPDDR5X LPDDR5X
Memory clock 5300 MHz -
Channels 4 4
Storage
Storage size 256 GB 256 GB
Storage type UFS 4.0 UFS 4.0
Memory card No No

Software

Operating system Android 15 (Can be upgraded to Android 16) Android 13 (Can be upgraded to Android 16)
ROM One UI 8.0 One UI 8.0
OS size 30.4 GB 42.5 GB
OS updates 7 years 4 years
Security updates 7 years 5 years

Battery

Capacity 5000 mAh 4700 mAh
Max charge power 45 W 45 W
Battery type Li-Ion Li-Ion
Replaceable No No
Wireless charging Yes (25 W) Yes (10 W)
Reverse charging Yes, (wireless) Yes, (wireless)
Bypass charging Yes -
Fast charging Yes (72% in 30 min) Yes (57% in 30 min)
Full charging time 0:59 hr 1:05 hr
Battery cycles 2000 cycles -
Battery life tests
Web browsing 11:10 hr 10:37 hr
Watching video 19:32 hr 15:54 hr
Gaming 06:22 hr 06:37 hr
Standby 132 hr 128 hr
General battery life
28:43 hr
26:32 hr
Smartphones With Long Battery Life (69th and 119th place)

Main camera

Matrix 200 megapixels 50 megapixels
Image resolution 16320 x 12240 8160 x 6120
Zoom Optical, 5x Optical, 3x
Flash LED LED
Stabilization Optical Optical
8K video recording Up to 30FPS Up to 30FPS
4K video recording Up to 120FPS Up to 60FPS
1080p video recording Up to 240FPS Up to 120FPS
Slow motion 240 FPS (1080p) 960 FPS (1080p)
Angle of widest lens 120° 120°
Lenses 1) Standard: 200 MP
2) Telephoto: 50 MP
3) Telephoto: 10 MP
4) Ultrawide: 50 MP
1) Standard: 50 MP
2) Telephoto: 10 MP
3) Ultrawide: 12 MP
Camera features - Bokeh mode
- Pro mode
- RAW support
- Bokeh mode
- Pro mode
- RAW support
Standard lens
Image resolution 200 MP 50 MP
Aperture f/1.7 f/1.8
Focal length 23 mm 23 mm
Sensor Samsung ISOCELL S5KHP2 Samsung S5KGN3
Sensor size 1/1.3" (≈ 0.77 inch) 1/1.57" (≈ 0.64 inch)
Pixel size 0.6 micron 1 micron
Autofocus Laser autofocus Phase autofocus (Dual Pixel)
Stabilization Optical Optical
Telephoto lens
Image resolution 50 MP 10 MP
Aperture f/3.4 f/2.4
Focal length 111 mm 70 mm
Sensor Sony IMX854 Samsung S5K3K1
Sensor size 1/2.52" (≈ 0.4 inch) 1/3.94" (≈ 0.25 inch)
Pixel size 0.7 micron 1 micron
Stabilization Optical Optical
Ultra-wide lens
Image resolution 50 MP 12 MP
Aperture f/1.9 f/2.2
Focal length 13 mm 13 mm
Sensor Samsung ISOCELL S5KJN3 Sony IMX564
Sensor size 1/2.5" (≈ 0.4 inch) 1/2.55" (≈ 0.39 inch)
Pixel size 0.7 micron 1.4 micron
Stabilization Digital Digital

DxOMark main camera tests

Photo quality
Video quality
Generic main camera score
Bokeh 165 70
Preview 81 72
Zoom 137 126
Samples Photo samples of Samsung Galaxy S25 Ultra from DxOMark Photo samples of Samsung Galaxy S23 Plus from DxOMark

Selfie camera

Megapixels 12 megapixels 12 megapixels
Image resolution 4000 x 3000 4000 x 3000
Aperture f/2.2 f/2.2
Focal length 26 mm 26 mm
Sensor Samsung S5K3LU Samsung S5K3LU
Sensor size 1/3.2" (≈ 0.31 inch) 1/3.24" (≈ 0.31 inch)
Pixel size 1.12 micron 1.12 micron
Autofocus Phase autofocus (Dual Pixel) Phase autofocus
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 FPS 2160p (4K) at 60 FPS
Depth sensor (TOF 3D) No No

Connectivity

Wi-Fi standard 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
Network
Number of SIM* 1 1
Type of SIM card Nano Nano
Multi SIM mode Standby Standby
eSIM support* Yes Yes
Hybrid slot No No
LTE Cat* - 20
5G support Yes Yes

Sound

Speakers Stereo Stereo
Headphone audio jack No No
FM radio No No
Dolby Atmos Yes Yes
Speakers test
Max loudness
93 dB
91.8 dB

Other

Category Flagship Flagship
Announced January 2025 February 2023
Release date February 2025 February 2023
Launch price (MSRP) $1299 $999
Successor - Samsung Galaxy S26 Ultra - Samsung Galaxy S25 Plus
SAR (head) 1.25 W/kg 0.57 W/kg
SAR (body) 1.42 W/kg 1.4 W/kg
Sensors - Hall-effect sensor
- Barometer
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- Hall-effect sensor
- Barometer
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
Bundled charger Not included Not included
Further details
Notes on Galaxy S25 Ultra:
    - Supports up to 2 eSIMs. The international model has 2 physical SIM slots, while the U.S. version has 1.
    - Uses Grade 5 titanium and Corning Gorilla Armor 2 glass on both sides.
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

After analyzing all the data, we think that the Samsung Galaxy S25 Ultra is definitely a better buy.

Cast your vote

So, which phone would you choose?
55 (56.7%)
42 (43.3%)
Total votes: 97

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