Home Phone comparison Xiaomi Poco X3 NFC and Vivo iQOO 15 - Which is better?

Xiaomi Poco X3 NFC vs Vivo iQOO 15

53 out 100
Xiaomi Poco X3 NFC
VS
94 out 100
Vivo iQOO 15
Xiaomi Poco X3 NFC
Vivo iQOO 15

Compared 2 smartphones : Xiaomi Poco X3 NFC Manufactured in September, 2020, with display 6.67 with chipsetQualcomm Snapdragon 732G, 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 Xiaomi Poco X3 NFC
  • Lighter design: 215g vs 220g
  • Supports Dolby Atmos
Reasons to choose Vivo iQOO 15
  • Larger display: 6.85in
  • Higher pixel density: 508ppi
  • Higher refresh rate: 144Hz
  • Higher battery capacity: 7000mAh vs 5160mAh
  • Newer Bluetooth version: 6.0 vs 5.1
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Includes charger

Versions

Available versions and configurations
Memory Options - 6/64 GB
- 6/128 GB
- 8/128 GB		 - 12/256 GB
- 12/512 GB
- 16/256 GB
- 16/512 GB
- 16/1024 GB

Review

Key Specs Xiaomi Poco X3 NFC 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:
Xiaomi Poco X3 NFC
vs
Vivo iQOO 15

Display

Display quality comparison
Type IPS LCD 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 450 nits 2600 nits
HDR support Yes HDR10 Yes, HDR10+
Touch Sampling Rate 240 Hz n/a
Screen-to-body ratio 84.6 % 90.2 %
Features n/a - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Xiaomi Poco X3 NFC
629 nits
Vivo iQOO 15
n/a
sRGB gamut99.7 %n/a
PWM (Flicker)2358 Hzn/a
Response time35.4 msn/a
Sources: NotebookCheck [Xiaomi Poco X3 NFC]

Design & Build

Design and ergonomics comparison
Height 165.3 mm (6.51 in) 163.65 mm (6.44 in)
Width 76.8 mm (3.02 in) 76.8 mm (3.02 in)
Thickness 9.4 mm (0.37 in) 8.1 mm (0.32 in)
Weight 215 g (7.58 oz) 220 g (7.76 oz)
Water resistance IP53 IP69
Cooling system n/a Vapor chamber
Back panel Plastic n/a
Frame Metal Metal
Colors - Gray
- Blue		 - White
- Black
- Blue
Fingerprint sensor Yes In-Button Yes, In-Display
Screen-to-body ratio
Xiaomi Poco X3 NFC
84.6 %
Vivo iQOO 15
90.2 %

Performance

Testing Xiaomi Poco X3 NFC and Vivo iQOO 15 In benchmarks
Processor
Chipset Qualcomm Snapdragon 732G Qualcomm Snapdragon 8 Elite Gen 5
Max Frequency 2300 MHz 4600 MHz
CPU Cores 8 (2 + 6) 8 (2 + 6)
Architecture - 6/1.8 (Kryo 470 Silver (Cortex-A55))
- 2/2.3 (Kryo 470 Gold (Cortex-A76))		 6/3.63 ()
Process Samsung TSMC
Transistor Size 8 nm 3 nm
Neural Processor Hexagon 688 Hexagon
Graphics Adreno 618 Adreno 840
GPU Cores 256 1536
GPU Frequency 825 MHz 1200 MHz
FLOPS 422.4 GFLOPS 3686.4 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Xiaomi Poco X3 NFC
722
Vivo iQOO 15
3641
Geekbench 6 (Multi-Core)
Xiaomi Poco X3 NFC
1878
Vivo iQOO 15
10982
Geekbench 6 (Single-Core)7223641
Geekbench 6 (Multi-Core)187810982
Geekbench Compute (GPU)n/a27923
Sources: Geekbench v6 [Vivo iQOO 15]
AnTuTu 10
AnTuTu 10
Xiaomi Poco X3 NFC
395451
Vivo iQOO 15
4009400
CPU1324061102463
GPU793451429688
Memory75270516447
UX108430960802
NanoReview Score3954514009400
3DMark Wild Life
3DMark Wild Life
Xiaomi Poco X3 NFC
1108
Vivo iQOO 15
n/a
Max Surface Temp.42.6 °Cn/a
Stability99 %n/a
Graphics Test6 fpsn/a
Graphics Score1108n/a
Sources: 3DMark [Xiaomi Poco X3 NFC]
PCMark 3.0
PCMark 3.0
Xiaomi Poco X3 NFC
8826
Vivo iQOO 15
n/a
Writing score10279n/a
Web score7068n/a
Video editing5923n/a
Data manipulation7591n/a
NanoReview Score8826n/a

Memory

RAM
RAM Size 6 GB 12 GB
Memory Type LPDDR4X LPDDR5X
Memory Frequency 1866 MHz 5300 MHz
Channels 2 4
Storage
Storage Capacity- 64 GB
- 128 GB		256 GB
Storage TypeUFS 2.1UFS 4.1
Memory CardMicroSDNo

Software

OS Android 10 (Upgradeable to Android 12) Android 16
OS Size 20.5 GB n/a
UI Skin MIUI 14 OriginOS 6

Battery

Volume 5160 mAh 7000 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 No
Fast Charging Yes (55% in 30 min) Yes
Full Charge Time 1:15 h n/a
Battery Life Test
Battery Life
Xiaomi Poco X3 NFC
24:00
Vivo iQOO 15
n/a
Web Browsing09:56 hn/a
Video Playback13:59 hn/a
Games05:35 hn/a
Standby Mode116 hn/a

Main camera

Matrix 64 MP 50 MP
Photo resolution 9248x6920 pixels 8192x6144 pixels
Zoom Digital Optical, 3x
Flash Dual 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 960 fps (720p) 240 fps (1080p)
Wide-angle lens 119 ° n/a
Lenses count Standard: 64 MP
Ultra-wide: 13 MP
Macro: 2 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
Matrix64 MP50 MP
Aperturef/1.9f/1.9
Focal lengthn/a23 mm
SensorSony IMX682n/a
Sensor size1/1.731/1.56
Pixel size0.8 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
Matrix13 MP50 MP
Aperturef/2.2f/2.1
Focal lengthn/a15 mm
Sensor sizen/a1/2.76
Pixel size1 μm0.64 μm
StabilizationDigitalDigital
Main camera DxOMark results
Photo quality
Xiaomi Poco X3 NFC
107
Vivo iQOO 15
n/a
Video quality
Xiaomi Poco X3 NFC
98
Vivo iQOO 15
n/a
Overall camera score
Xiaomi Poco X3 NFC
103
Vivo iQOO 15
n/a
Sources: DxOMark [Xiaomi Poco X3 NFC]

Front camera

Matrix 20 MP 32 MP
Photo resolution 5963x3354 pixels n/a
Aperture f/2.2 f/2.2
Focal length n/a 21 mm
Sensor CMOS CMOS
Sensor size 1/3.4 n/a
Pixel size 0.8 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, A2DP LE
USB type USB Type-C USB Type-C
USB version 2 3.2
USB features - Charging
- USB Storage Mode
- USB-Host mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort n/a Yes
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- SBAS		 - 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 SlotYesNo
2G BandsGSM: B2/3/5/8GSM 850/900/1800/1900MHz
3G BandsWCDMA B1/2/4/5/8WCDMA B1/B2/B4/B5/B6/B8/B19
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B20/B28)LTE (B1/B2/B3/B4/B5/B7/B8/B18/B19/B20/B26/B28/B38/B40/B41/B42/B66)
LTE category15n/a
5G SupportNoYes

Sound

Speakers Stereo n/a
3.5 mm Jack Yes No
FM Radio Yes No
Dolby Atmos Yes n/a
Speaker Test
Max Volume
Xiaomi Poco X3 NFC
89.2 dB
Vivo iQOO 15
n/a

Other

Class Mid-range Flagship
Announced September, 2020 yr October, 2025 yr
Release Date September, 2020 yr October, 2025 yr
Launch Price ($) 245 n/a
MSRP ($) 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 n/a Yes, 100 W
* 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.

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