Home Phone comparison Xiaomi Poco X6 Pro and OnePlus Ace 6 Ultra - Which is better?

Xiaomi Poco X6 Pro vs OnePlus Ace 6 Ultra

71 out 100
Xiaomi Poco X6 Pro
VS
89 out 100
OnePlus Ace 6 Ultra
Xiaomi Poco X6 Pro
OnePlus Ace 6 Ultra

Compared 2 smartphones : Xiaomi Poco X6 Pro Manufactured in January, 2024, with display 6.67 with chipsetMediaTek Dimensity 8300 Ultra, vs OnePlus Ace 6 Ultra, Manufactured in April, 2026 with chipsetMediaTek Dimensity 9500. 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 Poco X6 Pro
  • Lighter design: 186g vs 217g
  • Supports Dolby Atmos
Reasons to choose OnePlus Ace 6 Ultra
  • Larger display: 6.78in
  • Higher pixel density: 450ppi
  • Higher refresh rate: 165Hz
  • Higher battery capacity: 8600mAh vs 5000mAh
  • Newer Bluetooth version: 6.0 vs 5.4

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 Poco X6 Pro and OnePlus Ace 6 Ultra
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 Poco X6 Pro
vs
OnePlus Ace 6 Ultra

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.67 in 6.78 in
Resolution 1220x2712 pixels 1272x2772 pixels
Aspect ratio 20:9 19.5:9
Pixel density 446 ppi 450 ppi
Refresh rate 120 Hz 165 Hz
Adaptive refresh rate Yes (30-120 Hz) Yes
Max brightness n/a 800 nits
HDR support Yes Dolby Vision Yes, Dolby Vision
Touch Sampling Rate 480 Hz 300 Hz
Screen-to-body ratio 90 % 89.7 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Xiaomi Poco X6 Pro
1156 nits
OnePlus Ace 6 Ultra
n/a
sRGB gamut99.7 %n/a
PWM (Flicker)1923 Hzn/a
Response time1 msn/a
Contrast∞ Infiniten/a
Sources: NotebookCheck [Xiaomi Poco X6 Pro]

Design & Build

Design and ergonomics comparison
Height 160.45 mm (6.32 in) 162.5 mm (6.4 in)
Width 74.34 mm (2.93 in) 77.5 mm (3.05 in)
Thickness 8.25 mm (0.32 in) 8.5 mm (0.33 in)
Weight 186 g (6.56 oz) 217 g (7.65 oz)
Water resistance IP54 IP69
Cooling system Vapor chamber Vapor chamber
Back panel Plastic Glass
Frame Plastic Metal
Colors - Black
- Gray
- Yellow		 - Black
- Gray
Fingerprint sensor Yes In-Display Yes, In-Display
Screen-to-body ratio
Xiaomi Poco X6 Pro
90 %
OnePlus Ace 6 Ultra
89.7 %

Performance

Testing Xiaomi Poco X6 Pro and OnePlus Ace 6 Ultra In benchmarks
Processor
Chipset MediaTek Dimensity 8300 Ultra MediaTek Dimensity 9500
Max Frequency 3350 MHz 4210 MHz
CPU Cores 8 (1 + 3 + 4) 8 (1 + 3 + 4)
Architecture - 4/2.2 (Cortex-A510)
- 3/3.2 (Cortex-A715)
- 1/3.35 (Cortex-A715)		 - 4/2.7 (C1-Pro)
- 3/3.5 (C1-Premium)
- 1/4.21 (C1-Ultra)
Process TSMC TSMC
Transistor Size 4 nm 3 nm
Neural Processor MediaTek APU 780 MediaTek NPU 990
Graphics Mali-G615 MP6 n/a
GPU Cores 768 n/a
GPU Frequency 1400 MHz n/a
FLOPS 2150.4 GFLOPS n/a
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi Poco X6 Pro
1502
OnePlus Ace 6 Ultra
3600
Geekbench 6 (Multi-Core)
Xiaomi Poco X6 Pro
4779
OnePlus Ace 6 Ultra
10616
Geekbench 6 (Single-Core)15023600
Geekbench 6 (Multi-Core)477910616
Geekbench Compute (GPU)4842n/a
Sources: Geekbench v6 [Xiaomi Poco X6 Pro], [OnePlus Ace 6 Ultra]
AnTuTu 10
AnTuTu 10
Xiaomi Poco X6 Pro
1407210
OnePlus Ace 6 Ultra
3429868
CPU2962051011104
GPU5395961311664
Memory318606383286
UX252803723814
NanoReview Score14072103429868

Memory

RAM
RAM Size 8 GB 12 GB
Memory Type LPDDR5X LPDDR5X
Memory Frequency 4200 MHz 5333 MHz
Channels 4 4
Storage
Storage Capacity256 GB256 GB
Storage TypeUFS 4.0UFS 4.1
Memory CardNoNo

Software

OS Android 14 (Upgradeable to Android 15) Android 16
OS Size 36 GB n/a
UI Skin HyperOS 2.0 ColorOS 16

Battery

Volume 5000 mAh 8600 mAh
Max Charging Power 67 W 120 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging No No
Reverse Charging No Yes
Fast Charging Yes (50% in 18 min) Yes
Full Charge Time 0:45 h n/a
Battery Life Test
Battery Life
Xiaomi Poco X6 Pro
21:20
OnePlus Ace 6 Ultra
n/a
Web Browsing08:53 hn/a
Video Playback12:36 hn/a
Games05:17 hn/a
Standby Mode101 hn/a

Main camera

Matrix 64 MP 50 MP
Photo resolution 9000x7000 pixels 8192x6144 pixels
Zoom Digital Digital
Flash LED Dual LED
Stabilization Optical Optical
8K Recording No No
4K Recording Yes (Up to 30 fps) Yes (Up to 120 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 1920 fps (720p) 240 fps (1080p)
Wide-angle lens 120 ° 112 °
Lenses count Standard: 64 MP
Ultra-wide: 8 MP
Macro: 2 MP		 Standard: 50 MP
Ultra-wide: 8 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix64 MP50 MP
Aperturef/1.7f/1.8
Focal length25 mm23 mm
SensorOmnivision OV64Bn/a
Sensor size1/21/1.55 (0.65)
Pixel size0.7 μm1 μm
AutofocusPhase autofocusPhase autofocus
StabilizationOpticalOptical
Ultra-wide lens
Matrix8 MP8 MP
Aperturef/2.2f/2.2
Focal lengthn/a16 mm
SensorOmnivision OV08D10n/a
Sensor size1/4n/a
Pixel size1.12 μm1.12 μm
StabilizationDigitalDigital

Front camera

Matrix 16 MP 16 MP
Photo resolution 4608x3456 pixels 4608x3456 pixels
Aperture f/2.6 f/2.4
Focal length n/a 23 mm
Sensor Omnivision OV16A1Q n/a
Sensor size 1/3.06 1/3 (0.33)
Pixel size 1 μm n/a
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 60 fps 1080p (Full HD) at 30 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 6 (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 5.4 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
DisplayPort No No
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
NFC* Varies by region Yes
Infrared Port Yes Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM 850/900/1800/1900MHzn/a
3G BandsWCDMA B1/2/4/5/6/8/19n/a
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B18/B19/B20/B28/B66)n/a
5G SupportYesYes

Sound

3.5 mm Jack No No
FM Radio No No
Dolby Atmos Yes No
Speaker Test
Max Volume
Xiaomi Poco X6 Pro
90.3 dB
OnePlus Ace 6 Ultra
n/a

Other

Class Mid-range Flagship
Announced January, 2024 yr April, 2026 yr
Release Date January, 2024 yr April, 2026 yr
MSRP ($) 299 555
Sensors - Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 67 W Yes, 120 W

Note

Xiaomi Poco X6 Pro:

There is an eco-leather version of the X6 Pro that is 4 grams heavier and 0.10 thicker.

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

Results

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

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