Asus Zenfone 12 Ultra vs Xiaomi 15 Ultra

Comparing the Asus Zenfone 12 Ultra vs Xiaomi 15 Ultra across performance, display, camera, battery and storage to help determine the better smartphone.

Here is the summary of the results:

Performance: Both Asus Zenfone 12 Ultra and Xiaomi 15 Ultra run at the same processing speed of 4.32 GHz.

Display: Asus Zenfone 12 Ultra offers a screen size of 6.78 inches, while Xiaomi 15 Ultra offers 6.73 inches, making Asus Zenfone 12 Ultra the larger display of the two. Both Asus Zenfone 12 Ultra and Xiaomi 15 Ultra feature the same LTPO AMOLED display.

Rear Camera: Both Asus Zenfone 12 Ultra and Xiaomi 15 Ultra feature a 50 MP primary rear camera.

Front Camera: Both Asus Zenfone 12 Ultra and Xiaomi 15 Ultra feature a 32 MP primary front camera.

Battery: Xiaomi 15 Ultra delivers longer battery life with 12h 07m, while Asus Zenfone 12 Ultra delivers None, making Xiaomi 15 Ultra the better pick for all day usage.

Storage: Xiaomi 15 Ultra offers higher internal storage with 512 GB, while Asus Zenfone 12 Ultra offers 256 GB, making Xiaomi 15 Ultra the better option for storage.

Asus Zenfone 12 Ultra

(Not Released in India)

Xiaomi 15 Ultra

₹89,990

(Out of Stock)

Summary

Release Date

N/A

19 Mar, 2025

14 May, 2026

Performance


Snapdragon 8 Elite	Snapdragon 8 Elite	Snapdragon 8 Elite Gen 5
Octa Core (upto 4.32 GHz)	Octa Core (upto 4.32 GHz)	Octa Core (upto 4.61 GHz)
12 GB RAM	16 GB RAM	16 GB RAM

Display


6.78 inches (17.22 cm)	6.73 inches (17.09 cm)	6.82 inches (17.32 cm)
LTPO AMOLED	LTPO AMOLED	AMOLED
1080x2400 px (FHD+)	1440x3200 px (QHD+)	1440x3168 px (QHD+)
144 Hz Refresh Rate	120 Hz Refresh Rate	144 Hz Refresh Rate

Rear Camera


50 MP Wide Angle Primary Camera	50 MP Wide Angle Primary Camera	200 MP Primary Camera (upto 3.7x Optical Zoom)
13 MP Ultra-Wide Angle Camera	50 MP Ultra-Wide Angle Camera	200 MP Telephoto Camera
32 MP Telephoto Camera (upto 3x Optical Zoom)	50 MP Telephoto Camera (upto 3x Optical Zoom)	50 MP Ultra-Wide Angle Camera
N/A	200 MP Camera (upto 4.3x Optical Zoom)	N/A

Front Camera


32 MP Wide Angle Lens	32 MP Wide Angle Lens	50 MP

Battery


5500 mAh	5410 mAh	6600 mAh
65W Hyper Charging	90W Hyper Charging	100W Flash Charging
Wireless Charging	Wireless Charging	Wireless Charging

Storage

256 GB	512 GB	512 GB
UFS 4.0	UFS 4.1	UFS 4.1

Expert Review

N/A

8.5/10

Read Expert Review

8.7/10

Read Expert Review

Pros

Device yet to be reviewed

Brilliant display
Reliable Leica cameras
Solid battery
Smooth performance

Stellar and versatile three-lens camera system
Excellent performance
Bright and crisp 2K AMOLED display

Cons

Device yet to be reviewed

Limited productivity AI features
Only one colour option

Battery life could have been better
Very expensive with camera kit
No shortcut key

User Ratings

N/A

4.4/5

(94 ratings)

4.6/5

(29 ratings)

Benchmarks (The higher, the better)

N/A	2,407,499 AnTuTu Score	3,977,648 AnTuTu Score
N/A	12h 07m Battery Life (PC Mark)	15h 10m Battery Life (PC Mark)

Compare Prices

Not Available in any store

₹159,999

@ Amazon

Video

There are no videos available for the device.

1 Video

User Feedback

General

Launch Date

N/A

Mar 19, 2025

(Official)

May 06, 2026

(Official)

Operating System

Android v15

Android v16

OS Updates

N/A

4 Years

5 Year

Security Updates

N/A

6 Years

7 Year

Custom UI

N/A

HyperOS

Origin OS

Performance

Performance Rating

Excellent

Best In Class

Chipset

Qualcomm Snapdragon 8 Elite

Qualcomm Snapdragon 8 Elite Gen 5 SM8850-AC

Processor

Octa core

4.32 GHz, Dual core, Oryon 3.53 GHz, Hexa Core, Oryon

Octa core

4.61 GHz, Dual core, Oryon 3.62 GHz, Hexa Core, Oryon

Architecture (The higher, the better)

64 bit

Fabrication (The lower, the better)

3 nm

Graphics (GPU)

Adreno 830

Adreno 840

RAM

12 GB

16 GB

RAM Type

LPDDR5X

LPDDR5X Ultra

Performance Test Results

AnTuTu Score (The higher, the better) AnTuTu benchmark measures overall performance of a phone by stress-testing CPU, GPU, RAM, etc.

N/A

2,407,499

3,977,648

Bootup Time (The lower, the better)

N/A

13.0 s

14.0 s

Gaming Test Results

Wild Life Extreme (The higher, the better) Wild Life Extreme is a classic mobile benchmark; it renders in 4K to test the peak performance of a wide range of devices.

N/A

6,450

Battery Drain* (The lower, the better)

N/A

8.0 %

7.0 %

Heating* (The lower, the better)

N/A

23.4 %

21.7 %

* after 30 mins of gaming

Display

Display Rating

Excellent

Best In Class

Display Type

LTPO AMOLED

LTPO AMOLED (Curved Display)

AMOLED

Screen Size

6.78 inches (17.22 cm)

6.73 inches (17.09 cm)

6.82 inches (17.32 cm)

Resolution

1080x2400 px (FHD+)

1440x3200 px (QHD+)

1440x3168 px (QHD+)

Peak Brightness

2500 nits

3200 nits

4500 nits

HBM Brightness

1600 nits

N/A

Refresh Rate

144 Hz

120 Hz

144 Hz

Aspect Ratio

20:9

19.8:9

Pixel Density

388 ppi

521 ppi

510 ppi

Screen to Body Ratio (calculated)

87.99 %

90.03 %

89.7 %

Screen Protection

Corning Gorilla Glass Glass Victus 2

Yes

Bezel-less Display

Yes with punch-hole display

HDR 10 / HDR+ Support

Yes HDR 10+

Yes

Screen to Body Ratio (claimed by the brand)

N/A

94.49 %

Design

Height

163.8 mm

161.3 mm

162.98 mm

Width

77 mm

75.3 mm

76.81 mm

Thickness

8.9 mm

9.48 mm

8.19 mm

Weight

220 grams

229 grams

232 grams

Build Material

Back: Mineral Glass

N/A

Back: Glass

Water Resistance

Yes Water resistant IP68

Yes Water resistant IP68 (up to 30 minutes in a depth of 1.5 meter)

N/A

Ruggedness

Dust proof

N/A

Rear Camera

Rear Camera Rating

Excellent

Best In Class

Resolution

50 MP
Primary Cameraf/1.9 Wide Angle23.8 mm focal length 1/1.56" sensor size LYT 700 1µm pixel size

50 MP
Primary Cameraf/1.63 Wide Angle23 mm focal length 1/1" sensor size LYT 900 1.6µm pixel size

200 MP
Primary Camera105x Digital Zoom 3.7x Optical Zoomf/1.8535 mm focal length LYT 901 0.7µm pixel size

13 MP
f/2.2 Ultra-Wide Angle Camera13 mm focal length 1/3" sensor size 1.12µm pixel size

50 MP
f/2.2 Ultra-Wide Angle Camera14 mm focal length 1/2.76" sensor size 0.64µm pixel size

200 MP
f/2.67 Telephoto Camera85 mm focal length 1/1.28" sensor size

32 MP
f/2.4 Telephoto Camera65.3 mm focal length 1/3.2" sensor size 0.7µm pixel size

50 MP
f/1.8 Telephoto Camera70 mm focal length 1/2.51" sensor size 0.7µm pixel size

50 MP
f/2.0 Ultra-Wide Angle Camera14 mm focal length

N/A

200 MP
f/2.6100 mm focal length 1/1.4" sensor size 0.56µm pixel size

N/A

Autofocus

Yes Phase Detection Autofocus

Yes

OIS

Yes

Flash

Yes LED Flash

Yes Dual LED Flash

Image Resolution

8150 x 6150 Pixels

N/A

Settings

Exposure compensation ISO control

N/A

Shooting Modes

Continuous Shooting
High Dynamic Range mode (HDR)

Continuous Shooting
High Dynamic Range mode (HDR)
Burst mode
SuperMoon

N/A

Camera Features

Digital Zoom
Auto Flash
Face detection
Touch to focus

Digital Zoom
Auto Flash
Custom Watermark
Filters
Touch to focus
Xiaomi ProFocus

105 x Digital Zoom
3.7 x Optical Zoom

Video Recording

8k @30 fps
4k @120 fps
Full HD @240 fps
HD @480 fps

8k @30 fps
4k @120 fps
Full HD @1920 fps
HD @1920 fps

8k @30 fps
4k @30/60/120 fps
Full HD @30/60/120 fps

Video Recording Features

Slow Motion

Dual Video Recording
Slow Motion
Video Pro Mode

N/A

Front Camera

Front Camera Rating

Excellent

Best In Class

Resolution

32 MP
Wide Angle Primary Camera22 mm focal length 1/3.2" sensor size 0.7µm pixel size

32 MP
f/2.0 Wide Angle Primary Camera21 mm focal length 1/3.14" sensor size 0.7µm pixel size

50 MP
f/2.45 Primary Camera

Flash

N/A

Yes Screen flash

Video Recording

Full HD @30 fps
HD @60 fps

4k @60 fps
Full HD @60 fps
HD @30 fps

N/A

Battery

Battery Rating

Excellent

Capacity

5500 mAh

5410 mAh

6600 mAh

Battery Type

N/A

Silicon Carbon

Li-ion

Quick Charging

Yes 65W Hyper Charging

Yes 90W Hyper Charging

Yes 100W Flash Charging

Wireless Charging

Yes 15W Wireless Charging

Yes 80W Wireless Charging

Yes 40W Wireless Charging

Wireless Reverse Charging

N/A

Yes 10W Wireless Reverse Charging

N/A

Battery Test Results

Battery Life (PC Mark) (The higher, the better) PCMark Battery benchmark measures battery life of a phone with various activities such as web browsing, photo editing, writing, video editing, etc.

N/A

12h 07m

15h 10m

Charging Time (20% to 100%) (The lower, the better)

N/A

0h 47m 0s

0h 36m 0s

Storage

Internal Storage

256 GB

512 GB

Storage Type

UFS 4.0

UFS 4.1

Expandable Storage

N/A

Network & Connectivity

SIM Slot(s)

Dual SIM

SIM Type

SIM1: Nano SIM2: Nano

Network Support

5G 4G

VoLTE

Yes

SIM 1

5G Bands:

FDD N1 / N2 / N3 / N5 / N7 / N12 / N20 / N28
TDD N38 / N40 / N41 / N48 / N66 / N77 / N78 / N79

5G Bands:

FDD N1 / N2 / N3 / N5 / N7 / N8 / N12 / N20 / N25 / N26 / N28
TDD N38 / N40 / N41 / N48 / N66 / N71 / N75 / N77 / N78 / N79

5G Bands:

FDD N1 / N2 / N3 / N5 / N7 / N8 / N12 / N18 / N20 / N25 / N26 / N28 / N66
TDD N38 / N40 / N41 / N48 / N77 / N78 / N79 / N80 / N81 / N83 / N84 / N89

4G Bands:

TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 2100(band 34) / 1900(band 39) / 3500(band 42)
FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 17) / 850(band 18) / 850(band 19) / 800(band 20) / 1900(band 25) / 850(band 26)

4G Bands:

TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 1900(band 39) / 3500(band 42)
FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 13) / 700(band 17) / 850(band 18) / 850(band 19) / 800(band 20) / 1900(band 25) / 850(band 26)

4G Bands:

TD-LTE 3500(band 48) / 2600(band 38) / 2300(band 40) / 2500(band 41) / 2100(band 34) / 1900(band 39) / 3500(band 42) / 3700(band 43)
FD-LTE 1700(band 66) / 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 17) / 850(band 18) / 850(band 19) / 800(band 20) / 1900(band 25) / 850(band 26)

SIM 2

5G Bands:

FDD N1 / N2 / N3 / N5 / N7 / N8 / N12 / N25 / N26 / N28
TDD N38 / N40 / N41 / N48 / N66 / N77 / N78 / N79

5G Bands:

FDD N1 / N2 / N3 / N5 / N7 / N8 / N12 / N20 / N25 / N26 / N28
TDD N38 / N40 / N41 / N48 / N66 / N71 / N75 / N77 / N78 / N79

5G Bands:

FDD N1 / N2 / N3 / N5 / N7 / N8 / N12 / N18 / N20 / N25 / N26 / N28 / N66
TDD N38 / N40 / N41 / N48 / N77 / N78 / N79 / N80 / N81 / N83 / N84 / N89

4G Bands:

TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 1900(band 39) / 3500(band 42)
FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 13) / 700(band 17) / 850(band 18) / 850(band 19) / 800(band 20) / 1900(band 25) / 850(band 26)

4G Bands:

TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41) / 2100(band 34) / 1900(band 39) / 3500(band 42) / 3700(band 43) / 3500(band 48)
FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 700(band 12) / 700(band 17) / 850(band 18) / 850(band 19) / 800(band 20) / 1900(band 25) / 850(band 26) / 1700(band 66)

Wi-Fi

Yes Wi-Fi 7 (802.11 a/b/g/n/ac/be/ax) 5GHz 6GHz

Yes Wi-Fi 7 (802.11 a/b/g/n/ac/be/ax) 5GHz 6GHz MIMO

Yes Wi-Fi 7 (802.11 be/ax) MIMO

Wi-Fi Features

Wi-Fi Direct Mobile Hotspot

Mobile Hotspot

Wi-Fi Direct Mobile Hotspot

Bluetooth

Yes v5.4

Yes v6.0

GPS

Yes with A-GPS Glonass

NFC

Yes

IR Blaster

N/A

Yes

Multimedia

Stereo Speakers

Yes

N/A

Audio Jack

3.5 mm

USB Type-C

Audio Features

N/A

Dolby Atmos

N/A

Sensors

Fingerprint Sensor

Yes

Fingerprint Sensor Position

On-screen

Fingerprint Sensor Type

Optical

Ultrasonic

Other Sensors

Light sensor Proximity sensor Accelerometer Compass Gyroscope

Proximity sensor Accelerometer Barometer Compass Gyroscope

Light sensor Proximity sensor Accelerometer Compass Gyroscope

Compare Prices

Not Available in any store

₹159,999

@ Amazon