Home Phone comparison Asus Zenfone 12 Ultra and Samsung Galaxy S25 Plus - Which is better?

Asus Zenfone 12 Ultra vs Samsung Galaxy S25 Plus

85 out 100
Asus Zenfone 12 Ultra
VS
91 out 100
Samsung Galaxy S25 Plus
Asus Zenfone 12 Ultra
Samsung Galaxy S25 Plus

Compared 2 smartphones : Asus Zenfone 12 Ultra Manufactured in February, 2025, with display 6.78 with chipsetQualcomm Snapdragon 8 Elite, vs Samsung Galaxy S25 Plus, Manufactured in February, 2025 with chipsetQualcomm Snapdragon 8 Elite. 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 Asus Zenfone 12 Ultra
  • Larger display: 6.78in
  • Higher refresh rate: 144Hz
  • Higher battery capacity: 5500mAh vs 4900mAh
Reasons to choose Samsung Galaxy S25 Plus
  • Higher pixel density: 513ppi
  • Lighter design: 190g vs 220g
  • Supports DisplayPort
  • Supports Dolby Atmos

Versions

Available versions and configurations
Memory Options - 12/256 GB
- 16/512 GB		 - 12/256 GB
- 12/512 GB

Review

Key Specs Asus Zenfone 12 Ultra and Samsung Galaxy S25 Plus
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.
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Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison
Smartphones:
Zenfone 12 Ultra
vs
Samsung Galaxy S25 Plus

Display

Display quality comparison
Type AMOLED Dynamic AMOLED
Size 6.78 in 6.7 in
Resolution 1080x2400 pixels 1440x3120 pixels
Aspect ratio 20:9 19.5:9
Pixel density 388 ppi 513 ppi
Refresh rate 144 Hz 120 Hz
Adaptive refresh rate Yes Yes (1-120 Hz)
Max brightness 2500 nits 2600 nits
HDR support Yes HDR10+ Yes HDR10+
Touch Sampling Rate n/a 240 Hz
Screen-to-body ratio 88 % 91.7 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
Display test
Peak brightness (auto)
Asus Zenfone 12 Ultra
1953 nits
Samsung Galaxy S25 Plus
1444 nits
sRGB gamutn/a96.8 %
PWM (Flicker)n/a240 Hz
Response timen/a1 ms
Contrastn/a∞ Infinite
Sources: NotebookCheck [Samsung Galaxy S25 Plus]

Design & Build

Design and ergonomics comparison
Height 163.8 mm (6.45 in) 158.4 mm (6.24 in)
Width 77 mm (3.03 in) 75.8 mm (2.98 in)
Thickness 8.9 mm (0.35 in) 7.3 mm (0.29 in)
Weight 220 g (7.76 oz) 190 g (6.7 oz)
Water resistance IP68 IP68
Cooling system Vapor chamber Vapor chamber
Back panel Glass Glass
Frame Metal Metal
Colors - White
- Black
- Green
- Yellow		 - Black
- Silver
- Gray
- Blue
- Green
- Pink
Fingerprint sensor Yes In-Display Yes In-Display
Screen-to-body ratio
Asus Zenfone 12 Ultra
88 %
Samsung Galaxy S25 Plus
91.7 %

Performance

Testing Asus Zenfone 12 Ultra and Samsung Galaxy S25 Plus In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Elite Qualcomm Snapdragon 8 Elite
Max Frequency 4320 MHz 4470 MHz
CPU Cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6/3.53 (Oryon (Phoenix M))
- 2/4.32 (Oryon (Phoenix L))		 - 6/3.53 (Oryon (Phoenix M))
- 2/4.32 (Oryon (Phoenix L))
Process TSMC TSMC
Transistor Size 3 nm 3 nm
Neural Processor Hexagon Hexagon
Graphics Adreno 830 Adreno 830
GPU Cores 1536 1536
GPU Frequency 1100 MHz 1100 MHz
FLOPS 3379.2 GFLOPS 3379.2 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Asus Zenfone 12 Ultra
3164
Samsung Galaxy S25 Plus
3087
Geekbench 6 (Multi-Core)
Asus Zenfone 12 Ultra
9880
Samsung Galaxy S25 Plus
9762
Geekbench 6 (Single-Core)31643087
Geekbench 6 (Multi-Core)98809762
Geekbench Compute (GPU)2632525122
Sources: Geekbench v6 [Asus Zenfone 12 Ultra], [Samsung Galaxy S25 Plus]
AnTuTu 10
AnTuTu 10
Asus Zenfone 12 Ultra
2853794
Samsung Galaxy S25 Plus
2136093
CPU610195466147
GPU12277731014939
Memory546153326456
UX469673328551
NanoReview Score28537942136093

Memory

RAM
RAM Size - 12 GB
- 16 GB		 12 GB
Memory Type LPDDR5X LPDDR5X
Memory Frequency 5333 MHz 5333 MHz
Channels 2 2
Storage
Storage Capacity- 256 GB
- 512 GB		- 256 GB
- 512 GB
Storage TypeUFS 4.0UFS 4.0
Memory CardNoNo

Software

OS Android 15 Android 15
OS Size n/a 29.1 GB
UI Skin n/a One UI 7.0

Battery

Volume 5500 mAh 4900 mAh
Max Charging Power 65 W 45 W
Battery Type Li-Po Li-ion
Removable No No
Wireless Charging Yes (15 W) Yes (15 W)
Reverse Charging Yes Yes (Wireless)
Fast Charging Yes (77% in 30 min) Yes (75% in 30 min)
Full Charge Time 0:45 h 0:59 h
Battery Life Test
Battery Life
Asus Zenfone 12 Ultra
21:58
Samsung Galaxy S25 Plus
28:09
Web Browsing09:46 h10:20 h
Video Playback12:28 h18:29 h
Games07:02 h06:19 h
Standby Mode98 h137 h

Main camera

Matrix 50 MP 50 MP
Photo resolution 8192x6144 pixels 8160x6120 pixels
Zoom Optical, 3x Optical, 3x
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 60 fps)
Slow Motion 480 fps (720p) 240 fps (1080p)
Wide-angle lens 120 ° 120 °
Lenses count Standard: 50 MP
Telephoto: 32 MP
Ultra-wide: 13 MP		 Standard: 50 MP
Telephoto: 10 MP
Ultra-wide: 12 MP
Features - Bokeh effect
- Pro mode
- RAW support		 - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix50 MP50 MP
Aperturef/1.9f/1.8
Focal length24 mm24 mm
SensorSony LYT-700Samsung ISOCELL S5KGN3
Sensor size1/1.561/1.56
Pixel size1 μm1 μm
AutofocusPhase autofocusPhase autofocus (Dual Pixel)
StabilizationOpticalOptical
Telephoto
Matrix32 MP10 MP
Aperturef/2.4f/2.4
Focal length65 mm67 mm
Sensorn/aSamsung ISOCELL S5K3K1
Sensor size1/3.21/3.94
Pixel size0.7 μm1 μm
StabilizationOpticalOptical
Ultra-wide lens
Matrix13 MP12 MP
Aperturef/2.2f/2.2
Focal length13 mm13 mm
Sensorn/aSony IMX564
Sensor size1/3.01/2.55
Pixel size1.12 μm1.4 μm
StabilizationDigitalDigital

Front camera

Matrix 32 MP 12 MP
Photo resolution 3264x2448 pixels 4000x3000 pixels
Aperture f/2.5 f/2.2
Focal length 22 mm 26 mm
Sensor CMOS Samsung S5K3LU
Sensor size 1/3.2 1/3.2
Pixel size 0.7 μm 1.12 μm
Autofocus No Phase autofocus
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 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 7 (802.11 a/b/g/n/ac/ax/be)
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 5.4
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 n/a Yes DP 1.2
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
NFC* Yes Yes
Infrared Port No No
Connectivity
SIM Count*21
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *YesYes
Hybrid SlotNoNo
2G BandsGSM 850 / 900 / 1800 / 1900MHzGSM850,GSM900,DCS1800,PCS1900
3G BandsWCDMA 800 / 850 / 900 / 1700 / 1900 / 2100MHzUMTS B1(2100),B2(1900),B4(AWS),B5(850),B8(900)
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B17/B18/B19/B20/B25/B26/B28/B32/B34/B38/B39/B40/B41/B42/B43/B48/B66)LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B14/B18/B19/B20/B25/B26/B28/B29/B30/B66/B71)
LTE category20n/a
5G SupportYesYes

Sound

Speakers Stereo Stereo
3.5 mm Jack Yes No
FM Radio No No
Dolby Atmos No Yes
Speaker Test
Max Volume
Asus Zenfone 12 Ultra
n/a
Samsung Galaxy S25 Plus
90.9 dB

Other

Class Flagship Flagship
Announced February, 2025 yr January, 2025 yr
Release Date February, 2025 yr February, 2025 yr
Launch Price ($) 999 999
Sensors - Hall Sensor
- 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.

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