Home Phone comparison Realme P3 Ultra 5G and Vivo X300 Pro - Which is better?

Realme P3 Ultra 5G vs Vivo X300 Pro

75 out 100
Realme P3 Ultra 5G
VS
90 out 100
Vivo X300 Pro
Realme P3 Ultra 5G
Vivo X300 Pro

Compared 2 smartphones : Realme P3 Ultra 5G Manufactured in March, 2025, with display 6.83 with chipsetMediaTek Dimensity 8350 Ultra, vs Vivo X300 Pro, Manufactured in October, 2025with 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 Realme P3 Ultra 5G
  • Larger display: 6.83in
  • Lighter design: 183g vs 226g
  • Supports Dolby Atmos
Reasons to choose Vivo X300 Pro
  • Higher pixel density: 452ppi
  • Higher battery capacity: 6510mAh vs 6000mAh
  • Supports newer USB: 3.2 vs 2
  • Supports DisplayPort
  • Built-in eSIM

Versions

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

Review

Key Specs Realme P3 Ultra 5G and Vivo X300 Pro
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.
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Function
Importance (Weight)
Display:
Camera:
Performance:
Gaming:
Battery:
Connectivity:
Higher weight means greater impact on NanoReview score.

Tests & specs

Specs & test comparison
Smartphones:
Realme P3 Ultra 5G
vs
Vivo X300 Pro

Display

Display quality comparison
Type AMOLED AMOLED
Size 6.83 in 6.78 in
Resolution 1272x2800 pixels 1260x2800 pixels
Aspect ratio 20:9 20:9
Pixel density 450 ppi 452 ppi
Refresh rate 120 Hz 120 Hz
Adaptive refresh rate Yes (60-120 Hz) Yes (1-120 Hz)
Max brightness 1500 nits 2000 nits
HDR support n/a Yes, Dolby Vision
Touch Sampling Rate 240 Hz 300 Hz
Screen-to-body ratio 89.8 % 90.8 %
Features - DCI-P3
- Always-On Display
- DC dimming		 - DCI-P3
- Always-On Display
- DC dimming
Display test
Peak brightness (auto)
Realme P3 Ultra 5G
n/a
Vivo X300 Pro
2611 nits

Design & Build

Design and ergonomics comparison
Height 163.1 mm (6.42 in) 161.98 mm (6.38 in)
Width 76.9 mm (3.03 in) 75.48 mm (2.97 in)
Thickness 7.38 mm (0.29 in) 7.99 mm (0.31 in)
Weight 183 g (6.46 oz) 226 g (7.97 oz)
Water resistance IP69 IP69
Cooling system n/a Vapor chamber
Back panel Plastic Glass
Frame Metal Metal
Colors - White
- Blue
- Red		 - White
- Black
- Blue
- Brown
Fingerprint sensor Yes In-Display Yes, In-Display
Screen-to-body ratio
Realme P3 Ultra 5G
89.8 %
Vivo X300 Pro
90.8 %

Performance

Testing Realme P3 Ultra 5G and Vivo X300 Pro In benchmarks
Processor
Chipset MediaTek Dimensity 8350 Ultra MediaTek Dimensity 9500
Max Frequency 3350 MHz 4210 MHz
CPU Cores 8 (1 + 3 + 4) 8 (1 + 3 + 4)
Architecture - 4/2.2 (Cortex-A510)
- 3/3.2 (Cortex-A715)
- 1/3.35 (Cortex-A715)		 - 4/2.7 (C1-Pro)
- 3/3.5 (C1-Premium)
- 1/4.21 (C1-Ultra)
Process TSMC TSMC
Transistor Size 4 nm 3 nm
Neural Processor MediaTek APU 780 MediaTek NPU 990
Graphics Mali-G615 MP6 Mali-G1 Ultra MP12
GPU Cores 768 1536
GPU Frequency 1400 MHz 1716 MHz
FLOPS 2150.4 GFLOPS 5271.5 GFLOPS
GeekBench v6
Geekbench 6 (Single-Core)
Realme P3 Ultra 5G
1216
Vivo X300 Pro
3447
Geekbench 6 (Multi-Core)
Realme P3 Ultra 5G
4012
Vivo X300 Pro
10378
Geekbench 6 (Single-Core)12163447
Geekbench 6 (Multi-Core)401210378
Geekbench Compute (GPU)861125723
Sources: Geekbench v6 [Realme P3 Ultra 5G], [Vivo X300 Pro]
AnTuTu 10
AnTuTu 10
Realme P3 Ultra 5G
1433933
Vivo X300 Pro
4011932
CPU3188711043247
GPU5514931510982
Memory276524667254
UX287045790449
NanoReview Score14339334011932

Memory

RAM
RAM Size - 8 GB
- 12 GB		 12 GB
Memory Type LPDDR5X LPDDR5X
Memory Frequency 4200 MHz 5333 MHz
Channels 4 4
Storage
Storage Capacity- 128 GB
- 256 GB		256 GB
Storage TypeUFS 3.1UFS 4.1
Memory CardNoNo

Software

OS Android 15 Android 16
UI Skin Realme UI 6.0 OriginOS 6

Battery

Volume 6000 mAh 6510 mAh
Max Charging Power 80 W 90 W
Battery Type Silicon Carbon (Si/C) Silicon Carbon (Si/C)
Removable No No
Wireless Charging No Yes (40 W)
Reverse Charging Yes Yes, (Wireless)
Fast Charging Yes (76% in 30 min) Yes (55% in 15 min)
Full Charge Time 1:00 h 0:29 h
Battery Life Test
Battery Life
Realme P3 Ultra 5G
n/a
Vivo X300 Pro
20:40
Web Browsingn/a08:45 h
Video Playbackn/a14:55 h
Gamesn/a06:08 h
Standby Moden/a81 h

Main camera

Matrix 50 MP 50 MP
Photo resolution 8192x6144 pixels 8192x6144 pixels
Zoom Digital Optical, 3.7x
Flash LED Dual LED
Stabilization Optical Optical
8K Recording No Yes (Up to 30 fps)
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 (720p) 240 fps (1080p)
Wide-angle lens 112 ° 119 °
Lenses count Standard: 50 MP
Ultra-wide: 8 MP		 Standard: 50 MP
Telephoto: 200 MP
Ultra-wide: 50 MP
Features - Bokeh effect
- Pro mode		 - Bokeh effect
- Pro mode
Main lens
Matrix50 MP50 MP
Aperturef/1.8f/1.6
Focal length24 mm24 mm
SensorSony IMX896Sony LYT-828
Sensor size1/1.561/1.28
Pixel size1 μm1.22 μm
AutofocusPhase autofocusLaser autofocus
StabilizationOpticalOptical
Telephoto
Matrixn/a200 MP
Aperturen/af/2.7
Focal lengthn/a85 mm
Sensorn/aSamsung ISOCELL HPB
Sensor sizen/a1/1.4
Pixel sizen/a0.56 μm
Stabilizationn/aOptical
Ultra-wide lens
Matrix8 MP50 MP
Aperturef/2.2f/2.0
Focal length16 mm15 mm
SensorOmnivision OV08D10Samsung S5KJN1
Sensor size1/4.01/2.76
Pixel size1.12 μm0.64 μm
StabilizationDigitalDigital

Front camera

Matrix 16 MP 50 MP
Photo resolution 4920x3264 pixels 8192x6144 pixels
Aperture f/2.4 f/2.0
Focal length 23 mm n/a
Sensor Sony IMX480 Samsung S5KJN1
Sensor size 1/3.09 1/2.76
Pixel size 1 μm 0.64 μm
Autofocus No Phase autofocus
Stabilization Digital Digital
Video resolution 1080p (Full HD) at 60 fps 2160p (4K) at 60 fps
TOF 3D sensor No No

Connectivity

Wi-Fi version Wi-Fi 6 (802.11 a/b/g/n/ac/ax) 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 5.4 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 No Yes
GPS - GPS
- GLONASS
- Beidou
- Galileo
- QZSS		 - GPS
- GLONASS
- Beidou
- Galileo
- QZSS
- NAVIC
NFC* Varies by region Yes
Infrared Port Yes Yes
Connectivity
SIM Count*22
SIM TypeNanoNano
SIM ModeDual SIM StandbyDual SIM Standby
eSIM Support *NoYes
Hybrid SlotNoNo
2G BandsGSM (850/900/1800/1900)GSM 850/900/1800/1900 MHz
3G BandsWCDMA (850/900/1700/1900/2100)WCDMA B1/B2/B4/B5/B6/B8/B19
LTE Bands*LTE (B1/B2/B3/B4/B5/B7/B8/B12/B13/B17/B18/B19/B20/B26/B28/B38/B40/B41/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

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

Other

Class Mid-range Flagship
Announced March, 2025 yr October, 2025 yr
Release Date March, 2025 yr October, 2025 yr
Launch Price ($) 315 n/a
MSRP ($) n/a 899
Sensors - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor		 - Proximity Sensor
- Gyroscope
- Accelerometer
- Ambient Light Sensor
- Compass
- Fingerprint sensor
Charger Included Yes 80 W Yes, 90 W
* Attention! Config, frequencies, NFC, and other specs may vary by region.

Results

After analyzing the data, we consider Vivo X300 Pro the clear winner in this comparison.

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