Xiaomi 15 Ultra vs Vivo iQOO Z9 Turbo Plus

Compared 2 smartphones : Xiaomi 15 Ultra Manufactured in February, 2025, with display 6.73 with chipsetQualcomm Snapdragon 8 Elite, vs Vivo iQOO Z9 Turbo Plus, Manufactured in September, 2024 with chipsetMediatek Dimensity 9300 Plus. Below are specs, tests, pros and cons for each device

Key Differences

Device key advantages
Reasons to choose Xiaomi 15 Ultra
  • Higher pixel density: 522ppi
  • Newer Bluetooth version: 6.0 vs 5.4
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Supports Dolby Atmos
  • Built-in eSIM
Reasons to choose Vivo iQOO Z9 Turbo Plus
  • Larger display: 6.78in
  • Higher refresh rate: 144Hz
  • Lighter design: 196g vs 226g
  • Higher battery capacity: 6400mAh vs 5410mAh

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

Review

Key Specs Xiaomi 15 Ultra and Vivo iQOO Z9 Turbo Plus
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

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.73 in 6.78 in
Resolution 1440x3200 pixels 1260x2800 pixels
Aspect ratio 20:9 20:9
Pixel density 522 ppi 453 ppi
Refresh rate 120 Hz 144 Hz
Adaptive refresh rate Yes (1-120 Hz) Yes
Max brightness n/a 1300 nits
HDR support Yes Dolby Vision Yes HDR10+
Touch Sampling Rate 300 Hz 300 Hz
Screen-to-body ratio 90 % 89.3 %
Features - DCI-P3
- Always-On Display
- DC dimming
- DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Xiaomi 15 Ultra
1599 nits
Vivo iQOO Z9 Turbo Plus
n/a
sRGB gamut99.7 %n/a
PWM (Flicker)120 Hzn/a
Response time1 msn/a
Contrast∞ Infiniten/a

Design & Build

Design and ergonomics comparison
Height 161.3 mm (6.35 in) 163.72 mm (6.45 in)
Width 75.3 mm (2.96 in) 75.88 mm (2.99 in)
Thickness 9.35 mm (0.37 in) 7.98 mm (0.31 in)
Weight 226 g (7.97 oz) 196 g (6.91 oz)
Water resistance IP68 IP64
Cooling system Vapor chamber Vapor chamber
Back panel Glass Plastic
Frame Metal Plastic
Colors - White
- Black
- Silver
- Green
- White
- Black
- Gray
Fingerprint sensor Yes In-Display Yes In-Display
Screen-to-body ratio
Xiaomi 15 Ultra
90 %
Vivo iQOO Z9 Turbo Plus
89.3 %

Performance

Testing Xiaomi 15 Ultra and Vivo iQOO Z9 Turbo Plus In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Elite Mediatek Dimensity 9300 Plus
Max Frequency 4320 MHz 3400 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 (Cortex-A720)
- 3/2.85 (Cortex-X4)
- 1/3.4 (Cortex-X4)
Process TSMC TSMC
Transistor Size 3 nm 4 nm
Neural Processor Hexagon MediaTek APU 790
Graphics Adreno 830 Mali-G720 Immortalis MP12
GPU Cores 1536 1536
GPU Frequency 1100 MHz 1300 MHz
FLOPS 3379.2 GFLOPS 3993.6 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi 15 Ultra
3008
Vivo iQOO Z9 Turbo Plus
2226
Geekbench 6 (Multi-Core)
Xiaomi 15 Ultra
9065
Vivo iQOO Z9 Turbo Plus
7125
Geekbench 6 (Single-Core)30082226
Geekbench 6 (Multi-Core)90657125
Geekbench Compute (GPU)n/a15507
AnTuTu 10
AnTuTu 10
Xiaomi 15 Ultra
2544373
Vivo iQOO Z9 Turbo Plus
2117738
CPU558586509925
GPU1040161852992
Memory520300394643
UX425326360178
NanoReview Score25443732117738

Memory

RAM
RAM Size 12 GB - 12 GB
- 16 GB
Memory Type LPDDR5X LPDDR5X
Memory Frequency 5333 MHz 2417 MHz
Channels 2 4
Storage
Storage Capacity256 GB- 256 GB
- 512 GB
Storage TypeUFS 4.1UFS 4.0
Memory CardNoNo

Software

OS Android 15 Android 14
OS Size 23.9 GB n/a
UI Skin HyperOS 2.0 OriginOS 4

Battery

Volume 5410 mAh 6400 mAh
Max Charging Power 90 W 80 W
Battery Type Silicon Carbon (Si/C) Li-Po
Removable No No
Wireless Charging Yes (80 W) No
Reverse Charging Yes (Wireless) Yes
Fast Charging Yes (72% in 30 min) Yes (50% in 23 min)
Full Charge Time 0:51 h 0:47 h
Battery Life Test
Battery Life
Xiaomi 15 Ultra
30:03
Vivo iQOO Z9 Turbo Plus
n/a
Web Browsing12:19 hn/a
Video Playback18:43 hn/a
Games06:45 hn/a
Standby Mode141 hn/a

Main camera

Matrix 50 MP 50 MP
Photo resolution 8192x6144 pixels 8192x6144 pixels
Zoom Optical, 4.3x Digital
Flash Dual LED LED
Stabilization Optical Optical
8K Recording Yes (Up to 30 fps) No
4K Recording Yes (Up to 120 fps) Yes (Up to 60 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 1920 fps (1080p) 240 fps (1080p)
Wide-angle lens 115 ° n/a
Lenses count Standard: 50 MP
Telephoto: 200 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
Main lens
Matrix50 MP50 MP
Aperturef/1.63f/1.8
Focal length23 mmn/a
SensorSony LYT-900Sony LYT-600
Sensor size1/1.01/1.95
Pixel size1.6 μm0.7 μm
AutofocusLaser autofocusPhase autofocus
StabilizationOpticalOptical
Telephoto
Matrix200 MPn/a
Aperturef/2.6n/a
Focal length100 mmn/a
SensorSamsung ISOCELL S5KHP9n/a
Sensor size1/1.4n/a
Pixel size0.56 μmn/a
StabilizationOpticaln/a
Ultra-wide lens
Matrix50 MP8 MP
Aperturef/2.2f/2.2
Focal length14 mmn/a
SensorSamsung S5KJN5GalaxyCore GC08A3
Sensor size1/2.761/4
Pixel size0.64 μm1.12 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Xiaomi 15 Ultra
158
Vivo iQOO Z9 Turbo Plus
n/a
Video quality
Xiaomi 15 Ultra
134
Vivo iQOO Z9 Turbo Plus
n/a
Overall camera score
Xiaomi 15 Ultra
153
Vivo iQOO Z9 Turbo Plus
n/a
Bokeh80n/a
Preview89n/a

Front camera

Matrix 32 MP 16 MP
Photo resolution 6528x4896 pixels n/a
Aperture f/2.0 f/2.5
Focal length 22 mm n/a
Sensor Omnivision OV32B Samsung S5K3P9
Sensor size 1/3.14 1/3.0
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 6.0 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 No
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC
- GPS
- GLONASS
- Galileo
- QZSS
- NAVIC
NFC* Yes Yes
Infrared Port Yes Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *YesNo
Hybrid SlotNoNo
2G BandsGSM 2/3/5/8GSM 850/900/1800MHz
3G BandsWCDMA 1/2/4/5/6/8/19WCDMA B1/B5/B8
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B17/B18/B19/B20/B26/B28/B34/B38/B39/B40/B41/B42/B48/B66)LTE (B1/B3/B5/B8/B28/B34/B38/B39/B40/B41)
5G SupportYesYes

Sound

Speakers n/a Stereo
3.5 mm Jack No No
FM Radio No No
Dolby Atmos Yes No
Speaker Test
Max Volume
Xiaomi 15 Ultra
92.1 dB
Vivo iQOO Z9 Turbo Plus
n/a

Other

Class Flagship Flagship
Announced February, 2025 yr September, 2024 yr
Release Date February, 2025 yr September, 2024 yr
Launch Price ($) n/a 310
MSRP ($) 1099 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 Yes 80 W

Note

Xiaomi 15 Ultra:

The Chinese version of the Xiaomi 15 Ultra has a 6000 mAh battery, while the international model comes with 5410 mAh, leading to a noticeable difference in battery life.

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

Results

After analyzing the data, we consider Xiaomi 15 Ultra the clear winner in this comparison.

Survey

Which smartphone would you pick?
2 (66.67%)
1 (33.33%)
Total Votes: 3

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