Home Phone comparison Xiaomi 14 Ultra and OnePlus Ace 6 - Which is better?

Xiaomi 14 Ultra vs OnePlus Ace 6

87 out 100
Xiaomi 14 Ultra
VS
89 out 100
OnePlus Ace 6
Xiaomi 14 Ultra
OnePlus Ace 6

Compared 2 smartphones : Xiaomi 14 Ultra Manufactured in February, 2024, with display 6.73 with chipsetQualcomm Snapdragon 8 Gen 3, vs OnePlus Ace 6, Manufactured in October, 2025with 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 Xiaomi 14 Ultra
  • Higher pixel density: 522ppi
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Supports Dolby Atmos
  • Includes charger
Reasons to choose OnePlus Ace 6
  • Larger display: 6.83in
  • Higher refresh rate: 165Hz
  • Lighter design: 213g vs 219.8g
  • Higher battery capacity: 7800mAh vs 5000mAh

Versions

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

Review

Key Specs Xiaomi 14 Ultra and OnePlus Ace 6
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:
Xiaomi 14 Ultra
vs
OnePlus Ace 6

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 522 ppi 450 ppi
Refresh rate 120 Hz 165 Hz
Adaptive refresh rate Yes (1-120 Hz) Yes (1-120 Hz)
Max brightness 3000 nits 800 nits
HDR support Yes Dolby Vision Yes, Dolby Vision
Touch Sampling Rate 240 Hz 300 Hz
Screen-to-body ratio 89.9 % 91 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Xiaomi 14 Ultra
1269 nits
OnePlus Ace 6
n/a
sRGB gamut98.9 %n/a
PWM (Flicker)120 Hzn/a
Response time1 msn/a
Contrast∞ Infiniten/a
Sources: NotebookCheck [Xiaomi 14 Ultra]

Design & Build

Design and ergonomics comparison
Height 161.4 mm (6.35 in) 163.4 mm (6.43 in)
Width 75.3 mm (2.96 in) 77 mm (3.03 in)
Thickness 9.2 mm (0.36 in) 8.3 mm (0.33 in)
Weight 219.8 g (7.75 oz) 213 g (7.51 oz)
Water resistance IP68 IP69
Cooling system Vapor chamber Vapor chamber
Back panel Glass Glass
Frame Metal Metal
Colors - White
- Black		 - White
- Black
- Silver
Fingerprint sensor Yes In-Display Yes, In-Display
Screen-to-body ratio
Xiaomi 14 Ultra
89.9 %
OnePlus Ace 6
91 %

Performance

Testing Xiaomi 14 Ultra and OnePlus Ace 6 In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Gen 3 Qualcomm Snapdragon 8 Elite
Max Frequency 3300 MHz 4320 MHz
CPU Cores 8 (1 + 3 + 2 + 2) 8 (2 + 6)
Architecture - 2/2.27 (Cortex-A520)
- 2/2.96 (Cortex-A720)
- 3/3.15 (Cortex-A720)
- 1/3.3 (Cortex-X4)		 - 6/3.53 (Oryon (Phoenix M))
- 2/4.32 (Oryon (Phoenix L))
Process TSMC TSMC
Transistor Size 4 nm 3 nm
Neural Processor Hexagon Hexagon
Graphics Adreno 750 Adreno 830
GPU Cores 1536 1536
GPU Frequency 903-1000 MHz 1100 MHz
FLOPS 2774 GFLOPS 3379.2 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi 14 Ultra
2197
OnePlus Ace 6
3160
Geekbench 6 (Multi-Core)
Xiaomi 14 Ultra
7058
OnePlus Ace 6
9736
Geekbench 6 (Single-Core)21973160
Geekbench 6 (Multi-Core)70589736
Geekbench Compute (GPU)16435n/a
Sources: Geekbench v6 [Xiaomi 14 Ultra], [OnePlus Ace 6]
AnTuTu 10
AnTuTu 10
Xiaomi 14 Ultra
2019519
OnePlus Ace 6
3114604
CPU436541856857
GPU8406631148661
Memory431435455327
UX328880653759
NanoReview Score20195193114604
3DMark Wild Life
3DMark Wild Life
Xiaomi 14 Ultra
15437
OnePlus Ace 6
n/a
Max Surface Temp.47.7 °Cn/a
Stability86 %n/a
Graphics Test92 fpsn/a
Graphics Score15437n/a
Sources: 3DMark [Xiaomi 14 Ultra]
PCMark 3.0
PCMark 3.0
Xiaomi 14 Ultra
16417
OnePlus Ace 6
n/a
Writing score19642n/a
Web score14876n/a
Video editing7929n/a
Data manipulation15903n/a
NanoReview Score16417n/a

Memory

RAM
RAM Size - 12 GB
- 16 GB		 12 GB
Memory Type LPDDR5X LPDDR5X
Memory Frequency 4200 MHz 5300 MHz
Channels 4 4
Storage
Storage Capacity- 256 GB
- 512 GB
- 1024 GB		256 GB
Storage TypeUFS 4.0UFS 4.1
Memory CardNoNo

Software

OS Android 14 (Upgradeable to Android 15) Android 16
OS Size 31 GB n/a
UI Skin HyperOS 2.0 ColorOS 16

Battery

Volume 5000 mAh 7800 mAh
Max Charging Power 90 W 120 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging Yes (80 W) No
Reverse Charging Yes (Wireless) Yes
Fast Charging Yes (52% in 15 min) Yes (58% in 20 min)
Full Charge Time 0:34 h 0:44 h
Battery Life Test
Battery Life
Xiaomi 14 Ultra
22:08
OnePlus Ace 6
n/a
Web Browsing09:23 hn/a
Video Playback12:26 hn/a
Games04:35 hn/a
Standby Mode109 hn/a

Main camera

Matrix 50 MP 50 MP
Photo resolution 8192x6144 pixels 8192x6144 pixels
Zoom Optical, 5x Digital
Flash Dual LED Dual LED
Stabilization Optical Optical
8K Recording Yes (Up to 30 fps) No
4K Recording Yes (Up to 120 fps) Yes (Up to 120 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 1920 fps (1080p) 240 fps (1080p)
Wide-angle lens 122 ° 112 °
Lenses count Standard: 50 MP
Telephoto: 50 MP
Telephoto: 50 MP
Ultra-wide: 50 MP
Depth		 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/1.6 - 4.0f/1.8
Focal length23 mm24 mm
SensorSony LYT-900Sony LYTIA-T808
Sensor size1/1.01/1.43
Pixel size1.6 μm1.12 μm
AutofocusLaser autofocusPhase autofocus
StabilizationOpticalOptical
Telephoto
Matrix50 MPn/a
Aperturef/1.8n/a
Focal length120 mmn/a
SensorSony IMX858n/a
Sensor size1/2.51n/a
Pixel size0.7 μmn/a
StabilizationOpticaln/a
Ultra-wide lens
Matrix50 MP8 MP
Aperturef/1.8f/2.2
Focal length12 mm16 mm
SensorSony IMX858Omnivision OV08D10
Sensor size1/2.511/4.0
Pixel size0.7 μm1.12 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Xiaomi 14 Ultra
144
OnePlus Ace 6
n/a
Video quality
Xiaomi 14 Ultra
150
OnePlus Ace 6
n/a
Overall camera score
Xiaomi 14 Ultra
149
OnePlus Ace 6
n/a
Bokeh75n/a
Preview83n/a
Zoom160n/a
Sources: DxOMark [Xiaomi 14 Ultra]

Front camera

Matrix 32 MP 16 MP
Photo resolution 6528x4896 pixels 4608x3456 pixels
Aperture f/2.0 f/2.4
Focal length 22 mm 23 mm
Sensor Omnivision OV32B Sony IMX480
Sensor size 1/3.14 1/3.09
Pixel size 0.7 μm 1 μm
Autofocus No No
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 fps 1080p (Full HD) at 30 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 2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort Yes DP 1.2 No
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 BandsGSM 2/3/5/8n/a
3G BandsWCDMA 1/2/4/5/6/8/19n/a
LTE Bands*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 No No
FM Radio No No
Dolby Atmos Yes No
Speaker Test
Max Volume
Xiaomi 14 Ultra
90.3 dB
OnePlus Ace 6
n/a

Other

Class Flagship Flagship
Announced February, 2024 yr October, 2025 yr
Release Date February, 2024 yr October, 2025 yr
Launch Price ($) 1499 n/a
Sensors - Barometer
- Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 90 W n/a

Note

Xiaomi 14 Ultra:

The rear cover is available in glass or eco-leather, while the frame can be aluminum or titanium. The front glass is either Xiaomi Shield Glass or Xiaomi Longjing Glass.

* Attention! Config, frequencies, NFC, and other specs may vary by region.

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