Home Phone comparison Xiaomi Poco X5 and Vivo iQOO 15 Ultra - Which is better?

Xiaomi Poco X5 vs Vivo iQOO 15 Ultra

54 out 100
Xiaomi Poco X5
VS
94 out 100
Vivo iQOO 15 Ultra
Xiaomi Poco X5
Vivo iQOO 15 Ultra

Compared 2 smartphones : Xiaomi Poco X5 Manufactured in February, 2023, with display 6.67 with chipsetQualcomm Snapdragon 695, vs Vivo iQOO 15 Ultra, Manufactured in February, 2026 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 Xiaomi Poco X5
  • Lighter design: 189g vs 227g
Reasons to choose Vivo iQOO 15 Ultra
  • Larger display: 6.85in
  • Higher pixel density: 508ppi
  • Higher refresh rate: 144Hz
  • Higher battery capacity: 7400mAh vs 5000mAh
  • Newer Bluetooth version: 5.4 vs 5.1
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Built-in eSIM

Versions

Available versions and configurations
Memory Options - 6/128 GB
- 8/256 GB		 - 16/256 GB
- 16/512 GB
- 16/1024 GB
- 24/1024 GB

Review

Key Specs Xiaomi Poco X5 and Vivo iQOO 15 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 X5
vs
Vivo iQOO 15 Ultra

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.67 in 6.85 in
Resolution 1080x2400 pixels 1440x3168 pixels
Aspect ratio 20:9 20:9
Pixel density 395 ppi 508 ppi
Refresh rate 120 Hz 144 Hz
Adaptive refresh rate No Yes (1-120 Hz)
Max brightness 700 nits 2600 nits
HDR support No Yes, HDR10+
Touch Sampling Rate 240 Hz n/a
Screen-to-body ratio 84.9 % 90.1 %
Features - DCI-P3
- Always-On Display		 - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Xiaomi Poco X5
725 nits
Vivo iQOO 15 Ultra
n/a
sRGB gamut99.3 %n/a
PWM (Flicker)486 Hzn/a
Response time1 msn/a
Contrast∞ Infiniten/a
Sources: NotebookCheck [Xiaomi Poco X5]

Design & Build

Design and ergonomics comparison
Height 165.88 mm (6.53 in) 163.7 mm (6.44 in)
Width 76.21 mm (3 in) 76.8 mm (3.02 in)
Thickness 7.98 mm (0.31 in) 8.7 mm (0.34 in)
Weight 189 g (6.67 oz) 227 g (8.01 oz)
Water resistance IP53 IP69
Cooling system n/a Active fan
Back panel Plastic Glass
Frame Plastic Metal
Colors - Black
- Blue
- Green		 - Black
- Silver
Fingerprint sensor Yes In-Button Yes, In-Display
Screen-to-body ratio
Xiaomi Poco X5
84.9 %
Vivo iQOO 15 Ultra
90.1 %

Performance

Testing Xiaomi Poco X5 and Vivo iQOO 15 Ultra In benchmarks
Processor
Chipset Qualcomm Snapdragon 695 Qualcomm Snapdragon 8 Elite Gen 5
Max Frequency 2200 MHz 4600 MHz
CPU Cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6/1.8 (Kryo 660 Silver (Cortex-A55))
- 2/2.2 (Kryo 660 Gold (Cortex-A78))		 - 6/3.63 (Oryon Gen 3 Performance)
- 2/4.61 (Oryon Gen 3 Prime)
Process TSMC TSMC
Transistor Size 6 nm 3 nm
Neural Processor Hexagon 686 Hexagon
Graphics Adreno 619 Adreno 840
GPU Cores 256 1536
GPU Frequency 950 MHz 1200 MHz
FLOPS 430.1 GFLOPS 3686.4 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi Poco X5
888
Vivo iQOO 15 Ultra
3615
Geekbench 6 (Multi-Core)
Xiaomi Poco X5
1918
Vivo iQOO 15 Ultra
11366
Geekbench 6 (Single-Core)8883615
Geekbench 6 (Multi-Core)191811366
Sources: Geekbench v6 [Vivo iQOO 15 Ultra]
AnTuTu 10
AnTuTu 10
Xiaomi Poco X5
440731
Vivo iQOO 15 Ultra
4518403
CPU1557781322001
GPU818071594848
Memory96142593523
UX1070041008031
NanoReview Score4407314518403
3DMark Wild Life
3DMark Wild Life
Xiaomi Poco X5
1204
Vivo iQOO 15 Ultra
n/a
Max Surface Temp.35.2 °Cn/a
Stability99 %n/a
Graphics Test7 fpsn/a
Graphics Score1204n/a
Sources: 3DMark [Xiaomi Poco X5]
PCMark 3.0
PCMark 3.0
Xiaomi Poco X5
9182
Vivo iQOO 15 Ultra
n/a
Writing score12410n/a
Web score8418n/a
Video editing4684n/a
Data manipulation8099n/a
NanoReview Score9182n/a

Memory

RAM
RAM Size - 6 GB
- 8 GB		 16 GB
Memory Type LPDDR4X LPDDR5X
Memory Frequency 2133 MHz n/a
Channels 2 4
Storage
Storage Capacity- 128 GB
- 256 GB		256 GB
Storage TypeUFS 2.2UFS 4.1
Memory CardMicroSDNo

Software

OS Android 12 (Upgradeable to Android 14) Android 16
OS Size 17 GB n/a
UI Skin HyperOS 1.0 OriginOS 6

Battery

Volume 5000 mAh 7400 mAh
Max Charging Power 33 W 100 W
Battery Type Li-Po Silicon Carbon (Si/C)
Removable No No
Wireless Charging No Yes (40 W)
Reverse Charging No Yes, (Wireless)
Fast Charging Yes (63% in 30 min) Yes
Full Charge Time 1:06 h n/a
Battery Life Test
Battery Life
Xiaomi Poco X5
21:22
Vivo iQOO 15 Ultra
n/a
Web Browsing07:11 hn/a
Video Playback11:58 hn/a
Games04:56 hn/a
Standby Mode120 hn/a

Main camera

Matrix 48 MP 50 MP
Photo resolution 8000x6000 pixels 8192x6144 pixels
Zoom Digital Optical, 3x
Flash LED Dual LED
Stabilization Digital Optical
8K Recording No Yes (Up to 30 fps)
4K Recording No Yes (Up to 60 fps)
1080p Recording Yes (Up to 30 fps) Yes (Up to 60 fps)
Slow Motion 120 fps (720p) 240 fps (1080p)
Wide-angle lens 118 ° 107 °
Lenses count Standard: 48 MP
Ultra-wide: 8 MP
Macro: 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
Matrix48 MP50 MP
Aperturef/1.8f/1.9
Focal lengthn/a23 mm
SensorOmniVision OV48BSony IMX921
Sensor size1/2.01/1.56 (0.64)
Pixel size0.8 μm1 μm
AutofocusPhase autofocusPhase autofocus
StabilizationDigitalOptical
Telephoto
Matrixn/a50 MP
Aperturen/af/2.7
Sensorn/aSony IMX882
Sensor sizen/a1/1.95 (0.51)
Pixel sizen/a0.8 μm
Stabilizationn/aOptical
Ultra-wide lens
Matrix8 MP50 MP
Aperturef/2.2f/2.1
Focal lengthn/a15 mm
SensorOmniVisionn/a
Sensor size1/4.41/2.76 (0.36)
Pixel size1 μm0.64 μm
StabilizationDigitalDigital

Front camera

Matrix 13 MP 32 MP
Photo resolution 4208x3120 pixels n/a
Aperture f/2.5 f/2.2
Focal length n/a 21 mm
Sensor Samsung 3L6 CMOS
Sensor size 1/3 1/3.1 (0.32)
Pixel size 1.12 μm 0.7 μm
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 5.4
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 n/a Yes
GPS - GPS
- GLONASS
- Beidou
- Galileo		 - 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 *NoYes
Hybrid SlotYesNo
2G BandsGSM 850 900 1800 1900MHzn/a
3G BandsWCDMA B1/2/4/5/8n/a
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B20/B28/B38/B40/B41/B66)n/a
LTE category18n/a
5G SupportYesYes

Sound

Speakers Mono n/a
3.5 mm Jack Yes No
FM Radio Yes No
Dolby Atmos Yes Yes
Speaker Test
Max Volume
Xiaomi Poco X5
93 dB
Vivo iQOO 15 Ultra
n/a

Other

Class Mid-range Flagship
Announced February, 2023 yr February, 2026 yr
Release Date February, 2023 yr February, 2026 yr
Launch Price ($) 250 n/a
MSRP ($) n/a 820
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 33 W Yes, 100 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

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

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