Home Phone comparison Xiaomi 12S Ultra and OnePlus Ace 6T - Which is better?

Xiaomi 12S Ultra vs OnePlus Ace 6T

74 out 100
Xiaomi 12S Ultra
VS
92 out 100
OnePlus Ace 6T
Xiaomi 12S Ultra
OnePlus Ace 6T

Compared 2 smartphones : Xiaomi 12S Ultra Manufactured in July, 2022, with display 6.73 with chipsetQualcomm Snapdragon 8 Plus Gen 1, vs OnePlus Ace 6T, Manufactured in December, 2025 with chipsetQualcomm Snapdragon 8 Gen 5. 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 Xiaomi 12S Ultra
  • Higher pixel density: 521ppi
  • Supports Dolby Atmos
Reasons to choose OnePlus Ace 6T
  • Larger display: 6.83in
  • Higher refresh rate: 165Hz
  • Lighter design: 211g vs 225g
  • Higher battery capacity: 8300mAh vs 4860mAh
  • Newer Bluetooth version: 6.0 vs 5.2

Versions

Available versions and configurations
Memory Options - 8/256 GB
- 12/256 GB
- 12/512 GB		 - 12/256 GB
- 12/512 GB
- 16/256 GB
- 16/512 GB
- 16/1024 GB

Review

Key Specs Xiaomi 12S Ultra and OnePlus Ace 6T
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.
Customize your score
Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison
Smartphones:
Xiaomi 12S Ultra
vs
OnePlus Ace 6T

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.73 in 6.83 in
Resolution 1440x3200 pixels 1272x2800 pixels
Aspect ratio 20:9 19.5:9
Pixel density 521 ppi 450 ppi
Refresh rate 120 Hz 165 Hz
Adaptive refresh rate Yes (60-120 Hz) Yes (60-120 Hz)
Max brightness 1000 nits 1800 nits
HDR support Yes HDR10+ Yes, Dolby Vision
Touch Sampling Rate 240 Hz 300 Hz
Screen-to-body ratio 89.4 % 91 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Xiaomi 12S Ultra
1064 nits
OnePlus Ace 6T
n/a
sRGB gamut99.7 %n/a
PWM (Flicker)186 Hzn/a
Response time2 msn/a
Contrast∞ Infiniten/a
Sources: NotebookCheck [Xiaomi 12S Ultra]

Design & Build

Design and ergonomics comparison
Height 163.17 mm (6.42 in) 163.41 mm (6.43 in)
Width 74.92 mm (2.95 in) 77.04 mm (3.03 in)
Thickness 9.06 mm (0.36 in) 8.1 mm (0.32 in)
Weight 225 g (7.94 oz) 211 g (7.44 oz)
Water resistance IP68 IP69
Cooling system Vapor chamber Vapor chamber
Back panel n/a Glass
Frame Metal Metal
Colors - Black
- Green		 - Black
- Green
- Purple
Fingerprint sensor Yes In-Display Yes, In-Display
Screen-to-body ratio
Xiaomi 12S Ultra
89.4 %
OnePlus Ace 6T
91 %

Performance

Testing Xiaomi 12S Ultra and OnePlus Ace 6T In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Plus Gen 1 Qualcomm Snapdragon 8 Gen 5
Max Frequency 3190 MHz 3840 MHz
CPU Cores 8 (1 + 3 + 4) 8 (2 + 6)
Architecture - 4/2 (Cortex-A510)
- 3/2.75 (Cortex-A710)
- 1/3.2 (Cortex-X2)		 6/3.32 ()
Process TSMC TSMC
Transistor Size 4 nm 3 nm
Neural Processor Hexagon Hexagon
Graphics Adreno 730 Adreno 829
GPU Cores 1024 1024
GPU Frequency 900 MHz 1200 MHz
FLOPS 1843.2 GFLOPS 2457.6 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi 12S Ultra
1458
OnePlus Ace 6T
2923
Geekbench 6 (Multi-Core)
Xiaomi 12S Ultra
3970
OnePlus Ace 6T
10007
Geekbench 6 (Single-Core)14582923
Geekbench 6 (Multi-Core)397010007
Geekbench Compute (GPU)n/a21256
Sources: Geekbench v6 [Xiaomi 12S Ultra], [OnePlus Ace 6T]
AnTuTu 10
AnTuTu 10
Xiaomi 12S Ultra
1234229
OnePlus Ace 6T
3561559
CPU3312761061167
GPU4858621160801
Memory182917538316
UX234174801275
NanoReview Score12342293561559
3DMark Wild Life
3DMark Wild Life
Xiaomi 12S Ultra
9860
OnePlus Ace 6T
n/a
Max Surface Temp.49.2 °Cn/a
Stability70 %n/a
Graphics Test59 fpsn/a
Graphics Score9860n/a
Sources: 3DMark [Xiaomi 12S Ultra]
PCMark 3.0
PCMark 3.0
Xiaomi 12S Ultra
13365
OnePlus Ace 6T
n/a
Writing score15792n/a
Web score11773n/a
Video editing7444n/a
Data manipulation9984n/a
NanoReview Score13365n/a

Memory

RAM
RAM Size - 8 GB
- 12 GB		 12 GB
Memory Type LPDDR5 LPDDR5X
Memory Frequency 3200 MHz 5300 MHz
Channels 4 4
Storage
Storage Capacity- 256 GB
- 512 GB		256 GB
Storage TypeUFS 3.1UFS 4.1
Memory CardNoNo

Software

OS Android 12 Android 16
OS Size 32 GB n/a
UI Skin MIUI 13 ColorOS 16

Battery

Volume 4860 mAh 8300 mAh
Max Charging Power 67 W 100 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging Yes (50 W) No
Reverse Charging Yes (Wireless) Yes
Fast Charging Yes (73% in 30 min) Yes (58% in 23 min)
Full Charge Time 0:50 h n/a
Battery Life Test
Battery Life
Xiaomi 12S Ultra
21:00
OnePlus Ace 6T
n/a
Web Browsing08:46 hn/a
Video Playback13:01 hn/a
Games05:25 hn/a
Standby Mode96 hn/a

Main camera

Matrix 50 MP 50 MP
Photo resolution n/a 8192x6144 pixels
Zoom Optical, 5x Digital
Flash Dual LED Dual LED
Stabilization Optical Optical
8K Recording Up to 24FPS No
4K Recording Yes (Up to 60 fps) Yes (Up to 120 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 3840 fps (720p) 240 fps (1080p)
Wide-angle lens 128 ° 112 °
Lenses count Standard: 50 MP
Telephoto: 48 MP
Ultra-wide: 48 MP
Depth: 0.3 MP		 Standard: 50 MP
Ultra-wide: 8 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 length23 mm24 mm
SensorSony IMX989Sony IMX906
Sensor size1/11/1.56 (0.64)
Pixel size1.6 μm1 μm
AutofocusLaser autofocusPhase autofocus
StabilizationOpticalOptical
Telephoto
Matrix48 MPn/a
Aperturef/4.1n/a
Focal length120 mmn/a
SensorSony IMX586n/a
Sensor size1/2.0n/a
Pixel size0.8 μmn/a
StabilizationOpticaln/a
Ultra-wide lens
Matrix48 MP8 MP
Aperturef/2.2f/2.2
Focal length13 mm16 mm
SensorSony IMX586Omnivision OV08D10
Sensor size1/2.01/4.0 (0.25)
Pixel size0.8 μm1.12 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Xiaomi 12S Ultra
137
OnePlus Ace 6T
n/a
Video quality
Xiaomi 12S Ultra
129
OnePlus Ace 6T
n/a
Overall camera score
Xiaomi 12S Ultra
136
OnePlus Ace 6T
n/a
Bokeh65n/a
Preview63n/a
Zoom136n/a
Sources: DxOMark [Xiaomi 12S Ultra]

Front camera

Matrix 32 MP 16 MP
Photo resolution 6528x4896 pixels 4608x3456 pixels
Aperture f/2.5 f/2.4
Focal length 26 mm 23 mm
Sensor Omnivision OV32C Sony IMX480
Sensor size 1/3.2 1/3.09 (0.32)
Pixel size 0.7 μm 1 μm
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 1080p (Full HD) at 30 fps
TOF 3D sensor No No
Selfie camera DxOMark results
Photo quality
Xiaomi 12S Ultra
103
OnePlus Ace 6T
n/a
Video quality
Xiaomi 12S Ultra
132
OnePlus Ace 6T
n/a

Connectivity

Wi-Fi version Wi-Fi 6E (802.11 a/b/g/n/ac/ax) 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 5.2 6.0
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 2 2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
NFC* Yes Yes
Infrared Port Yes Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G Bandsn/aGSM 850/900/1800MHz
3G Bandsn/aWCDMA 1/4/5/6/8/19
LTE Bands*n/aLTE (B1/B3/B4/B5/B8/B18/B19/B26/B28/B34/B38/B39/B40/B41/B42/B43/B48/B66)
LTE category20n/a
5G SupportYesYes

Sound

Speakers Stereo n/a
3.5 mm Jack No No
FM Radio No No
Dolby Atmos Yes No
Speaker Test
Max Volume
Xiaomi 12S Ultra
83.2 dB
OnePlus Ace 6T
n/a

Other

Class Flagship Flagship
Announced July, 2022 yr December, 2025 yr
Release Date July, 2022 yr December, 2025 yr
Launch Price ($) 890 n/a
MSRP ($) n/a 350
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 67 W Yes, 100 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider OnePlus Ace 6T the clear winner in this comparison.

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