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Asus Zenfone 12 Ultra vs ROG Phone 9 Pro

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Asus Zenfone 12 Ultra vs ROG Phone 9 Pro

85 out of 100
Asus Zenfone 12 Ultra
VS
90 out of 100
Asus ROG Phone 9 Pro
Asus Zenfone 12 Ultra
Asus ROG Phone 9 Pro

Here we compared two flagship smartphones: the 6.78-inch Asus Zenfone 12 Ultra (with Qualcomm Snapdragon 8 Elite) that was released on February 6, 2025, against the Asus ROG Phone 9 Pro, which is powered by the same chip and came out 3 months before. On this page, you will find tests, full specs, strengths, and weaknesses of each of the devices.

  1. Differences
  2. Review
  3. Specs
  4. Benchmarks
  5. Battery life
  6. Camera
  7. Comments

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Asus Zenfone 12 Ultra
  • Slow-motion recording at 480FPS
  • Ready for eSIM technology
Reasons to consider the Asus ROG Phone 9 Pro
  • Shows 34% longer battery life (29:22 vs 21:58 hours)
  • Higher display refresh rate – 185 Hz
  • Has 50% more RAM: 24GB versus 16GB
  • Comes with 300 mAh larger battery capacity: 5800 vs 5500 mAh
  • Supports Dolby Atmos sound technology

Review

Evaluation of Asus Zenfone 12 Ultra and ROG Phone 9 Pro 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
Scores with a red asterisk (*) are approximate and may change in the future as we gather more data.
NanoReview Score
Final comparison evaluation
Choose the importance of each parameter to more accurately identify the smartphone that best meets your particular needs.

Tests and specifications

Comparison table of technical specifications and tests
Phone:
Zenfone 12 Ultra
vs
ROG Phone 9 Pro

Display

TypeAMOLEDAMOLED
Size6.78 inches6.78 inches
Resolution1080 x 2400 pixels1080 x 2400 pixels
Aspect ratio20:920:9
PPI388 ppi388 ppi
Refresh rate144 Hz185 Hz
Adaptive refresh rateYesYes (24-120 Hz)
Max rated brightness2500 nits2500 nits
HDR supportYes, HDR10+Yes, HDR10+
Touch sampling rate - 720 Hz
Screen protection1-120Gorilla Glass Victus 2
Screen-to-body ratio88%88%
Display features - DCI-P3
- Always-On Display
- DC Dimming		 - DCI-P3
- Always-On Display
- DC Dimming
Display tests
RGB color space - 99.4%
PWM - 670 Hz
Response time - 1 ms
Contrast - ∞ Infinity
Peak brightness test (auto)
Zenfone 12 Ultra+1%
1958 nits
ROG Phone 9 Pro
1941 nits

Design and build

Height163.8 mm (6.45 inches)163.8 mm (6.45 inches)
Width77 mm (3.03 inches)77 mm (3.03 inches)
Thickness8.9 mm (0.35 inches)8.9 mm (0.35 inches)
Weight220 g (7.76 oz)227 g (8.01 oz)
WaterproofIP68IP68
Advanced coolingVapor chamberVapor chamber
Rear materialGlassGlass
Frame materialMetalMetal
ColorsWhite, Black, Green, YellowBlack
Fingerprint scannerYes, in-displayYes, in-display
Screen-to-body ratio

Performance

Tests of Asus Zenfone 12 Ultra and Asus ROG Phone 9 Pro in the benchmarks
SoC
ChipsetQualcomm Snapdragon 8 EliteQualcomm Snapdragon 8 Elite
Max clock4320 MHz4320 MHz
CPU cores8 (2 + 6)8 (2 + 6)
Architecture- 6 cores at 3.53 GHz: Oryon (Phoenix M)
- 2 cores at 4.32 GHz: Oryon (Phoenix L)		- 6 cores at 3.53 GHz: Oryon (Phoenix M)
- 2 cores at 4.32 GHz: Oryon (Phoenix L)
ManufacturingTSMCTSMC
Lithography process3 nanometers3 nanometers
Neural processor (NPU)HexagonHexagon
GraphicsAdreno 830Adreno 830
GPU shading units15361536
GPU clock1100 MHz1100 MHz
FLOPS~3379.2 GFLOPS~3379.2 GFLOPS

Benchmarks

Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
AnTuTu Benchmark 10
CPU610195647780
GPU12277731225858
Memory546153635230
UX469673524695
Total score28537943033563
SamplesLess than 3Less than 3

Memory

RAM
RAM size12, 16 GB16, 24 GB
Memory typeLPDDR5XLPDDR5X
Memory clock5333 MHz -
Channels22
Storage
Storage size256, 512 GB512, 1024 GB
Storage typeUFS 4.0UFS 4.0
Memory cardNoNo

Software

Operating systemAndroid 15 Android 15
ROM - ROG UI
OS size - 24 GB

Battery

Capacity5500 mAh5800 mAh
Max charge power65 W65 W
Battery typeLi-PoLi-Po
ReplaceableNoNo
Wireless chargingYes (15 W)Yes (15 W)
Reverse chargingYesYes
Fast chargingYes (77% in 30 min)Yes (76% in 30 min)
Full charging time0:45 hr0:47 hr
Battery life tests
Web browsing09:46 hr13:09 hr
Watching video12:28 hr19:36 hr
Gaming07:02 hr06:55 hr
Standby98 hr121 hr
General battery life

Main camera

Matrix50 megapixels50 megapixels
Image resolution8192 x 61448192 x 6144
ZoomOptical, 3xOptical, 3x
FlashLEDLED
StabilizationOpticalOptical
8K video recordingUp to 30FPSUp to 30FPS
4K video recordingUp to 60FPSUp to 60FPS
1080p video recordingUp to 60FPSUp to 60FPS
Slow motion480 FPS (720p)120 FPS (2160p)
Angle of widest lens120°120°
Lenses1) Standard: 50 MP
2) Telephoto: 32 MP
3) Ultrawide: 13 MP
1) Standard: 50 MP
2) Telephoto: 32 MP
3) Ultrawide: 13 MP
Camera features - Bokeh mode
- Pro mode
- RAW support		 - Bokeh mode
- Pro mode
Standard lens
Image resolution50 MP50 MP
Aperturef/1.9f/1.9
Focal length24 mm24 mm
SensorSony LYT-700Sony Lytia LYT-700
Sensor size1/1.56"1/1.56"
Pixel size1 micron1 micron
AutofocusPhase autofocusPhase autofocus
StabilizationOpticalOptical
Telephoto lens
Image resolution32 MP32 MP
Aperturef/2.4f/2.4
Focal length65 mm -
Sensor - OmniVision OV32C
Sensor size1/3.2"1/3.2"
Pixel size0.7 micron0.7 micron
StabilizationOpticalOptical
Ultra-wide lens
Image resolution13 MP13 MP
Aperturef/2.2f/2.2
Focal length13 mm13 mm
Sensor - OmniVision OV13B
Sensor size1/3.0"1/3"
Pixel size1.12 micron1.12 micron
StabilizationDigitalDigital

Selfie camera

Megapixels32 megapixels32 megapixels
Image resolution3264 x 24483264 x 2448
Aperturef/2.5f/2.5
Focal length22 mm22 mm
SensorCMOSOmniVision OV8856
Sensor size1/3.2"1/3.2"
Pixel size0.7 micron1.12 micron
AutofocusNoNo
StabilizationDigitalDigital
Video resolution1080p (Full HD) at 30 FPS1080p (Full HD) at 30 FPS
Depth sensor (TOF 3D)NoNo

Connectivity

Wi-Fi standardWi-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 version5.45.4
Bluetooth featuresLELE
USB typeUSB Type-CUSB Type-C
USB version3.23.2
USB features - Charging
- USB-Storage mode
- OTG		 - Charging
- USB-Storage mode
- OTG
DisplayPort - Yes, DP 1.4
GPSGPS, GLONASS, Beidou, Galileo, QZSS, NAVICGPS, GLONASS, Beidou, Galileo, QZSS, NAVIC
NFC*YesYes
Infrared portNoNo
Network
Number of SIM*22
Type of SIM cardNanoNano
Multi SIM modeStandbyStandby
eSIM support*YesNo
Hybrid slotNoNo
LTE Cat*2018
5G supportYesYes

Sound

SpeakersStereoStereo
Headphone audio jackYesYes
FM radioNoNo
Dolby AtmosNoYes
Speakers test
Max loudness

Other

CategoryFlagshipFlagship
AnnouncedFebruary 2025November 2024
Release dateFebruary 2025November 2024
Launch price$999$1199
Sensors - Hall-effect sensor
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint		 - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
Bundled chargerNot includedYes, 65 W
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.
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