Home Phone comparison Asus Zenfone 12 Ultra and Xiaomi Poco X8 Pro Max - Which is better?

Asus Zenfone 12 Ultra vs Xiaomi Poco X8 Pro Max

85 out 100
Asus Zenfone 12 Ultra
VS
88 out 100
Xiaomi Poco X8 Pro Max
Asus Zenfone 12 Ultra
Xiaomi Poco X8 Pro Max

Compared 2 smartphones : Asus Zenfone 12 Ultra Manufactured in February, 2025, with display 6.78 with chipsetQualcomm Snapdragon 8 Elite, vs Xiaomi Poco X8 Pro Max, Manufactured in March, 2026 with chipsetMediaTek Dimensity 9500s. 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
  • Higher refresh rate: 144Hz
  • Supports newer USB: 3.2 vs 2
Reasons to choose Xiaomi Poco X8 Pro Max
  • Larger display: 6.83in
  • Higher pixel density: 447ppi
  • Lighter design: 218g vs 220g
  • Higher battery capacity: 8500mAh vs 5500mAh
  • Newer Bluetooth version: 6.0 vs 5.4
  • Supports Dolby Atmos
  • Infrared port
  • Includes charger

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 Xiaomi Poco X8 Pro Max
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
Xiaomi Poco X8 Pro Max

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.78 in 6.83 in
Resolution 1080x2400 pixels 1280x2772 pixels
Aspect ratio 20:9 19.5:9
Pixel density 388 ppi 447 ppi
Refresh rate 144 Hz 120 Hz
Adaptive refresh rate Yes Yes (30-120 Hz)
Max brightness 2500 nits 2000 nits
HDR support Yes HDR10+ Yes, Dolby Vision
Touch Sampling Rate n/a 480 Hz
Screen-to-body ratio 88 % 90.2 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Asus Zenfone 12 Ultra
1953 nits
Xiaomi Poco X8 Pro Max
3552 nits

Design & Build

Design and ergonomics comparison
Height 163.8 mm (6.45 in) 162.9 mm (6.41 in)
Width 77 mm (3.03 in) 77.9 mm (3.07 in)
Thickness 8.9 mm (0.35 in) 8.2 mm (0.32 in)
Weight 220 g (7.76 oz) 218 g (7.69 oz)
Water resistance IP68 IP68
Cooling system Vapor chamber Vapor chamber
Back panel Glass Glass
Frame Metal Metal
Colors - White
- Black
- Green
- Yellow		 - White
- Black
- Blue
Fingerprint sensor Yes In-Display Yes, In-Display
Screen-to-body ratio
Asus Zenfone 12 Ultra
88 %
Xiaomi Poco X8 Pro Max
90.2 %

Performance

Testing Asus Zenfone 12 Ultra and Xiaomi Poco X8 Pro Max In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Elite MediaTek Dimensity 9500s
Max Frequency 4320 MHz 3300 MHz
CPU Cores 8 (2 + 6) 8 (1 + 3 + 4)
Architecture - 6/3.53 (Oryon (Phoenix M))
- 2/4.32 (Oryon (Phoenix L))		 - 4/2.4 (Cortex-A720)
- 3/3.3 (Cortex-X4)
- 1/3.73 (Cortex-X925)
Process TSMC TSMC
Transistor Size 3 nm 3 nm
Neural Processor Hexagon MediaTek NPU
Graphics Adreno 830 Mali-G925 Immortalis MP12
GPU Cores 1536 1536
GPU Frequency 1100 MHz 1612 MHz
FLOPS 3379.2 GFLOPS 4952.1 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Asus Zenfone 12 Ultra
3164
Xiaomi Poco X8 Pro Max
2733
Geekbench 6 (Multi-Core)
Asus Zenfone 12 Ultra
9880
Xiaomi Poco X8 Pro Max
8690
Geekbench 6 (Single-Core)31642733
Geekbench 6 (Multi-Core)98808690
Geekbench Compute (GPU)2632521093
Sources: Geekbench v6 [Asus Zenfone 12 Ultra], [Xiaomi Poco X8 Pro Max]
AnTuTu 10
AnTuTu 10
Asus Zenfone 12 Ultra
2853794
Xiaomi Poco X8 Pro Max
2830028
CPU610195832309
GPU1227773966427
Memory546153454998
UX469673576294
NanoReview Score28537942830028

Memory

RAM
RAM Size - 12 GB
- 16 GB		 12 GB
Memory Type LPDDR5X LPDDR5X
Memory Frequency 5333 MHz n/a
Channels 2 4
Storage
Storage Capacity- 256 GB
- 512 GB		256 GB
Storage TypeUFS 4.0UFS 4.1
Memory CardNoNo

Software

OS Android 15 Android 16
UI Skin n/a HyperOS 3.0

Battery

Volume 5500 mAh 8500 mAh
Max Charging Power 65 W 100 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging Yes (15 W) No
Reverse Charging Yes Yes
Fast Charging Yes (77% in 30 min) Yes (65% in 30 min)
Full Charge Time 0:45 h 0:52 h
Battery Life Test
Battery Life
Asus Zenfone 12 Ultra
21:58
Xiaomi Poco X8 Pro Max
41:26
Web Browsing09:46 h18:13 h
Video Playback12:28 h30:00 h
Games07:02 h11:54 h
Standby Mode98 h157 h

Main camera

Matrix 50 MP 50 MP
Photo resolution 8192x6144 pixels 8192x6144 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 60 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 480 fps (720p) 960 fps (1080p)
Wide-angle lens 120 ° n/a
Lenses count Standard: 50 MP
Telephoto: 32 MP
Ultra-wide: 13 MP		 Standard: 50 MP
Ultra-wide: 8 MP
Features - Bokeh effect
- Pro mode
- RAW support		 - Bokeh effect
- Pro mode
Main lens
Matrix50 MP50 MP
Aperturef/1.9f/1.5
Focal length24 mm26 mm
SensorSony LYT-700Omnivision Light Fusion 600
Sensor size1/1.561/1.95 (0.51)
Pixel size1 μm0.8 μm
AutofocusPhase autofocusPhase autofocus
StabilizationOpticalOptical
Telephoto
Matrix32 MPn/a
Aperturef/2.4n/a
Focal length65 mmn/a
Sensor size1/3.2n/a
Pixel size0.7 μmn/a
StabilizationOpticaln/a
Ultra-wide lens
Matrix13 MP8 MP
Aperturef/2.2f/2.2
Focal length13 mm15 mm
Sensorn/aSmartSens SC821CS
Sensor size1/3.01/4.0 (0.25)
Pixel size1.12 μm1.12 μm
StabilizationDigitalDigital

Front camera

Matrix 32 MP 20 MP
Photo resolution 3264x2448 pixels 5184x3888 pixels
Aperture f/2.5 f/2.2
Focal length 22 mm 25 mm
Sensor CMOS OmniVision OV20B
Sensor size 1/3.2 1/4.0 (0.25)
Pixel size 0.7 μm 0.7 μm
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 1080p (Full HD) 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 6.0
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 3.2 2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort n/a No
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC
NFC* Yes Varies by region
Infrared Port No Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *YesYes
Hybrid SlotNoNo
2G BandsGSM 850 / 900 / 1800 / 1900MHzGSM B3/B5/B8
3G BandsWCDMA 800 / 850 / 900 / 1700 / 1900 / 2100MHzWCDMA 1/2/4/5/8
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/B18/B19/B20/B26/B28/B38/B40/B41/B42/B48/B66)
LTE category20n/a
5G SupportYesYes

Sound

Speakers Stereo n/a
3.5 mm Jack Yes No
FM Radio No No
Dolby Atmos No Yes

Other

Class Flagship Mid-range
Announced February, 2025 yr March, 2026 yr
Release Date February, 2025 yr March, 2026 yr
Launch Price ($) 999 n/a
MSRP ($) n/a 429
Sensors - Hall Sensor
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included No Yes, 100 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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