Home Phone comparison Vivo iQOO 15 and Vivo X300 - Which is better?

Vivo iQOO 15 vs Vivo X300

94 out 100
Vivo iQOO 15
VS
92 out 100
Vivo X300
Vivo iQOO 15
Vivo X300

Compared 2 smartphones : Vivo iQOO 15 Manufactured in October, 2025, with display 6.85 with chipsetQualcomm Snapdragon 8 Elite Gen 5, vs Vivo X300, Manufactured in October, 2025 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 Vivo iQOO 15
  • Larger display: 6.85in
  • Higher pixel density: 508ppi
  • Higher refresh rate: 144Hz
  • Higher battery capacity: 7000mAh vs 6040mAh
  • Newer Bluetooth version: 6.0 vs 5.4
Reasons to choose Vivo X300
  • Lighter design: 190g vs 220g
  • Built-in eSIM

Versions

Available versions and configurations
Memory Options - 12/256 GB
- 12/512 GB
- 16/256 GB
- 16/512 GB
- 16/1024 GB		 - 12/256 GB
- 12/512 GB
- 16/256 GB
- 16/512 GB
- 16/1024 GB

Review

Key Specs Vivo iQOO 15 and Vivo X300
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 15
vs
Vivo X300

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.85 in 6.31 in
Resolution 1440x3168 pixels 1216x2640 pixels
Aspect ratio 20:9 19.5:9
Pixel density 508 ppi 460 ppi
Refresh rate 144 Hz 120 Hz
Adaptive refresh rate Yes (1-120 Hz) Yes (1-120 Hz)
Max brightness 2600 nits 2000 nits
HDR support Yes, HDR10+ Yes, Dolby Vision
Touch Sampling Rate n/a 300 Hz
Screen-to-body ratio 90.2 % 90.3 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
- DC dimming

Design & Build

Design and ergonomics comparison
Height 163.65 mm (6.44 in) 150.57 mm (5.93 in)
Width 76.8 mm (3.02 in) 71.92 mm (2.83 in)
Thickness 8.1 mm (0.32 in) 7.95 mm (0.31 in)
Weight 220 g (7.76 oz) 190 g (6.7 oz)
Water resistance IP69 IP69
Cooling system Vapor chamber Vapor chamber
Back panel n/a Glass
Frame Metal Metal
Colors - White
- Black
- Blue		 - Black
- Blue
- Red
- Pink
- Purple
Fingerprint sensor Yes, In-Display Yes, In-Display
Screen-to-body ratio
Vivo iQOO 15
90.2 %
Vivo X300
90.3 %

Performance

Testing Vivo iQOO 15 and Vivo X300 In benchmarks
Processor
Chipset Qualcomm Snapdragon 8 Elite Gen 5 MediaTek Dimensity 9500
Max Frequency 4600 MHz 4210 MHz
CPU Cores 8 (2 + 6) 8 (1 + 3 + 4)
Architecture 6/3.63 () - 4/2.7 (C1-Pro)
- 3/3.5 (C1-Premium)
- 1/4.21 (C1-Ultra)
Process TSMC TSMC
Transistor Size 3 nm 3 nm
Neural Processor Hexagon MediaTek NPU 990
Graphics Adreno 840 Mali-G1 Ultra MP12
GPU Cores 1536 1536
GPU Frequency 1200 MHz 1716 MHz
FLOPS 3686.4 GFLOPS 5271.5 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Vivo iQOO 15
3641
Vivo X300
3383
Geekbench 6 (Multi-Core)
Vivo iQOO 15
10982
Vivo X300
10099
Geekbench 6 (Single-Core)36413383
Geekbench 6 (Multi-Core)1098210099
Geekbench Compute (GPU)2792325462
Sources: Geekbench v6 [Vivo iQOO 15], [Vivo X300]
AnTuTu 10
AnTuTu 10
Vivo iQOO 15
4009400
Vivo X300
3367414
CPU1102463957632
GPU14296881342611
Memory516447448412
UX960802618759
NanoReview Score40094003367414

Memory

RAM
RAM Size 12 GB 12 GB
Memory Type LPDDR5X LPDDR5X
Memory Frequency 5300 MHz 5333 MHz
Channels 4 4
Storage
Storage Capacity256 GB256 GB
Storage TypeUFS 4.1UFS 4.1
Memory CardNoNo

Software

OS Android 16 Android 16
UI Skin OriginOS 6 OriginOS 6

Battery

Volume 7000 mAh 6040 mAh
Max Charging Power 100 W 90 W
Battery Type Silicon Carbon (Si/C) Silicon Carbon (Si/C)
Removable No No
Wireless Charging Yes (40 W) Yes (40 W)
Reverse Charging No Yes, (Wireless)
Fast Charging Yes Yes (73% in 30 min)
Full Charge Time n/a 0:46 h

Main camera

Matrix 50 MP 200 MP
Photo resolution 8192x6144 pixels n/a
Zoom Optical, 3x Optical, 3x
Flash Dual LED Dual LED
Stabilization Optical Optical
8K Recording Yes (Up to 30 fps) No
4K Recording Yes (Up to 60 fps) Yes (Up to 120 fps)
1080p Recording Yes (Up to 60 fps) Yes (Up to 60 fps)
Slow Motion 240 fps (1080p) 240 fps (1080p)
Wide-angle lens n/a 119 °
Lenses count Standard: 50 MP
Telephoto: 50 MP
Ultra-wide: 50 MP		 Standard: 200 MP
Telephoto: 50 MP
Ultra-wide: 50 MP
Features - Bokeh effect
- Pro mode
- RAW support		 - Bokeh effect
- Pro mode
Main lens
Matrix50 MP200 MP
Aperturef/1.9f/1.68
Focal length23 mm23 mm
Sensorn/aSamsung ISOCELL HPB
Sensor size1/1.561/1.4
Pixel size1 μm0.56 μm
AutofocusPhase autofocusLaser autofocus
StabilizationOpticalOptical
Telephoto
Matrix50 MP50 MP
Aperturef/2.7f/2.6
Focal lengthn/a70 mm
Sensorn/aSony LYT-602
Sensor size1/1.951/1.95
Pixel size0.8 μm0.8 μm
StabilizationOpticalOptical
Ultra-wide lens
Matrix50 MP50 MP
Aperturef/2.1f/2.0
Focal length15 mm15 mm
Sensorn/aSamsung S5KJN1
Sensor size1/2.761/2.76
Pixel size0.64 μm0.64 μm
StabilizationDigitalDigital

Front camera

Matrix 32 MP 50 MP
Photo resolution n/a 8192x6144 pixels
Aperture f/2.2 f/2.0
Focal length 21 mm n/a
Sensor CMOS Samsung S5KJN1
Sensor size n/a 1/2.76
Pixel size n/a 0.64 μm
Autofocus No Phase autofocus
Stabilization Digital Digital
Video resolution 2160p (4K) at 60 fps 2160p (4K) at 60 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 3.2
USB features - Charging
- USB Storage Mode
- OTG		 - Charging
- USB Storage Mode
- OTG
DisplayPort Yes Yes
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC
NFC* Yes Yes
Infrared Port Yes Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoYes
Hybrid SlotNoNo
2G BandsGSM 850/900/1800/1900MHzGSM 850/900/1800/1900 MHz
3G BandsWCDMA B1/B2/B4/B5/B6/B8/B19WCDMA B1/B2/B4/B5/B6/B8/B19
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B18/B19/B20/B26/B28/B38/B40/B41/B42/B66)LTE (B1/B2/B3/B4/B5/B7/B8/B18/B19/B20/B25/B26/B28/B34/B38/B39/B40/B41/B42/B43/B48/B66)
5G SupportYesYes

Sound

3.5 mm Jack No No
FM Radio No No
Dolby Atmos n/a No

Other

Class Flagship Flagship
Announced October, 2025 yr October, 2025 yr
Release Date October, 2025 yr October, 2025 yr
MSRP ($) 590 699
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes, 100 W Yes, 90 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

No clear favorite identified yet; updates may follow as new data arrives.

Survey

Which smartphone would you pick?
3 (50%)
3 (50%)
Total Votes: 6

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