Home Phone comparison Vivo iQOO Z9x 5G and Vivo iQOO 15 - Which is better?

Vivo iQOO Z9x 5G vs Vivo iQOO 15

64 out 100
Vivo iQOO Z9x 5G
VS
94 out 100
Vivo iQOO 15
Vivo iQOO Z9x 5G
Vivo iQOO 15

Compared 2 smartphones : Vivo iQOO Z9x 5G Manufactured in April, 2024, with display 6.72 with chipsetQualcomm Snapdragon 6 Gen 1, vs Vivo iQOO 15, Manufactured in October, 2025 with chipsetQualcomm Snapdragon 8 Elite 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 Vivo iQOO Z9x 5G
  • Lighter design: 199g vs 220g
Reasons to choose Vivo iQOO 15
  • Larger display: 6.85in
  • Higher pixel density: 508ppi
  • Higher refresh rate: 144Hz
  • Higher battery capacity: 7000mAh vs 6000mAh
  • Newer Bluetooth version: 6.0 vs 5.1
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Infrared port

Versions

Available versions and configurations
Memory Options - 4/128 GB
- 6/128 GB
- 8/128 GB
- 8/256 GB
- 12/256 GB		 - 12/256 GB
- 12/512 GB
- 16/256 GB
- 16/512 GB
- 16/1024 GB

Review

Key Specs Vivo iQOO Z9x 5G and Vivo iQOO 15
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:
Vivo iQOO Z9x 5G
vs
Vivo iQOO 15

Display

Display quality comparison
Type IPS LCD AMOLED
Size 6.72 in 6.85 in
Resolution 1080x2408 pixels 1440x3168 pixels
Aspect ratio 20:9 20:9
Pixel density 393 ppi 508 ppi
Refresh rate 120 Hz 144 Hz
Adaptive refresh rate Yes Yes (1-120 Hz)
Max brightness 1000 nits 2600 nits
HDR support No Yes, HDR10+
Touch Sampling Rate 300 Hz n/a
Screen-to-body ratio 86.5 % 90.2 %
Features DCI-P3 - DCI-P3
- Always-On Display
- DC dimming

Design & Build

Design and ergonomics comparison
Height 165.7 mm (6.52 in) 163.65 mm (6.44 in)
Width 76 mm (2.99 in) 76.8 mm (3.02 in)
Thickness 7.99 mm (0.31 in) 8.1 mm (0.32 in)
Weight 199 g (7.02 oz) 220 g (7.76 oz)
Water resistance IP64 IP69
Cooling system n/a Vapor chamber
Back panel Plastic n/a
Frame Plastic Metal
Colors - Black
- Green		 - White
- Black
- Blue
Fingerprint sensor Yes In-Button Yes, In-Display
Screen-to-body ratio
Vivo iQOO Z9x 5G
86.5 %
Vivo iQOO 15
90.2 %

Performance

Testing Vivo iQOO Z9x 5G and Vivo iQOO 15 In benchmarks
Processor
Chipset Qualcomm Snapdragon 6 Gen 1 Qualcomm Snapdragon 8 Elite Gen 5
Max Frequency 2200 MHz 4600 MHz
CPU Cores 8 (4 + 4) 8 (2 + 6)
Architecture - 4/1.8 (Cortex-A55)
- 4/2.2 (Cortex-A78)		 6/3.63 ()
Process Samsung TSMC
Transistor Size 4 nm 3 nm
Neural Processor Yes Hexagon
Graphics Adreno 710 Adreno 840
GPU Cores 256 1536
GPU Frequency 676 MHz 1200 MHz
FLOPS 346.1 GFLOPS 3686.4 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Vivo iQOO Z9x 5G
933
Vivo iQOO 15
3641
Geekbench 6 (Multi-Core)
Vivo iQOO Z9x 5G
2799
Vivo iQOO 15
10982
Geekbench 6 (Single-Core)9333641
Geekbench 6 (Multi-Core)279910982
Geekbench Compute (GPU)n/a27923
Sources: Geekbench v6 [Vivo iQOO Z9x 5G], [Vivo iQOO 15]
AnTuTu 10
AnTuTu 10
Vivo iQOO Z9x 5G
573302
Vivo iQOO 15
4009400
CPU2029221102463
GPU1097551429688
Memory128600516447
UX132025960802
NanoReview Score5733024009400

Memory

RAM
RAM Size - 8 GB
- 12 GB		 12 GB
Memory Type LPDDR4X LPDDR5X
Memory Frequency 2133 MHz 5300 MHz
Channels 2 4
Storage
Storage Capacity- 128 GB
- 256 GB		256 GB
Storage TypeUFS 2.2UFS 4.1
Memory CardMicroSDNo

Software

OS Android 14 Android 16
UI Skin Funtouch OS 14 OriginOS 6

Battery

Volume 6000 mAh 7000 mAh
Max Charging Power 44 W 100 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging No Yes (40 W)
Reverse Charging No No
Fast Charging Yes (50% in 26 min) Yes
Full Charge Time 1:11 h n/a

Main camera

Matrix 50 MP 50 MP
Photo resolution n/a 8192x6144 pixels
Zoom Digital Optical, 3x
Flash LED Dual LED
Stabilization Digital Optical
8K Recording No Yes (Up to 30 fps)
4K Recording Yes (Up to 30 fps) Yes (Up to 60 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 240 fps (720p) 240 fps (1080p)
Lenses count Standard: 50 MP
Depth: 2 MP		 Standard: 50 MP
Telephoto: 50 MP
Ultra-wide: 50 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
- RAW support
Main lens
Matrix50 MP50 MP
Aperturef/1.8f/1.9
Focal lengthn/a23 mm
SensorSamsung S5KJN1n/a
Sensor size1/1.951/1.56
Pixel size0.64 μm1 μm
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalOptical
Telephoto
Matrixn/a50 MP
Aperturen/af/2.7
Sensor sizen/a1/1.95
Pixel sizen/a0.8 μm
Stabilizationn/aOptical
Ultra-wide lens
Matrixn/a50 MP
Aperturen/af/2.1
Focal lengthn/a15 mm
Sensor sizen/a1/2.76
Pixel sizen/a0.64 μm
Stabilizationn/aDigital

Front camera

Matrix 8 MP 32 MP
Aperture f/2.1 f/2.2
Focal length n/a 21 mm
Sensor Samsung S5K4H7 CMOS
Sensor size 1/4 n/a
Pixel size 1.12 μm n/a
Autofocus No No
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 30 fps 2160p (4K) at 60 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 5 (802.11 a/b/g/n/ac) Wi-Fi 7 (802.11 a/b/g/n/ac/ax/be)
Wi-Fi features - Dual Band
- 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 5.1 6.0
Bluetooth features LE LE
USB type USB Type-C USB Type-C
USB version 2 3.2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort No Yes
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
NFC* Varies by region Yes
Infrared Port No Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoNo
Hybrid SlotNoNo
2G BandsGSM 850/900/1800 MHzGSM 850/900/1800/1900MHz
3G BandsWCDMA B1/B5/B8WCDMA B1/B2/B4/B5/B6/B8/B19
LTE Bands*LTE (B1/B3/B5/B7/B8/B20/B28/B38/B40/B41)LTE (B1/B2/B3/B4/B5/B7/B8/B18/B19/B20/B26/B28/B38/B40/B41/B42/B66)
5G SupportYesYes

Sound

Speakers Stereo n/a
3.5 mm Jack Yes No
FM Radio No No

Other

Class Mid-range Flagship
Announced April, 2024 yr October, 2025 yr
Release Date April, 2024 yr October, 2025 yr
Launch Price ($) 165 n/a
MSRP ($) n/a 590
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 44 W Yes, 100 W

Note

Vivo iQOO Z9x 5G:

Chinese version of Vivo T3x.

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

Results

After analyzing the data, we consider Vivo iQOO 15 the clear winner in this comparison.

Survey

Which smartphone would you pick?
0 (0%)
0 (0%)
Total Votes: 0

User comments

Share your opinion or ask questions below