Find X9 Pro vs Y400 Pro

Side-by-side comparison with real-scale visuals and detailed specifications

100% Objective Comparisons — Data sourced from official manufacturers

See our methodology

100%

Y400 Pro is 0.0% taller

Find X9 Pro

163.6mm×74.2mm

Y400 Pro

163.6mm×75.3mm

Scaled to real proportions

Specifications Comparison

Find X9 Pro

Oppo

2 wins

Y400 Pro

vivo

3 wins

📱

Screen Size

Diagonal screen measurement

= Tie

Find X9 Pro

6.7"

Y400 Pro

6.7"

Difference: 0"

🔋

Battery

Battery capacity in milliamp-hours

= Tie

Find X9 Pro

5,000mAh

Y400 Pro

5,000mAh

Difference: 0mAh

💾

RAM

Random Access Memory for multitasking

Better

Find X9 Pro

12GB

Y400 Pro

8GB

Difference: 4GB (50.0% more)

⚖️

Weight

Total device weight

Better

Find X9 Pro

205g

Y400 Pro

190g

Difference: 15g (7.9% less)

💿

Storage

Internal storage capacity

Better

Find X9 Pro

256GB

Y400 Pro

128GB

Difference: 128GB (100.0% more)

📷

Main Camera

Main camera resolution

Better

Find X9 Pro

50MP

Y400 Pro

64MP

Difference: 14MP (28.0% more)

💰

Price

Retail price in USD

Better

Find X9 Pro

999$

Y400 Pro

249$

Difference: 750$ (301.2% less)

📏

Height

Device height

Find X9 Pro

163.6mm

Y400 Pro

163.6mm

📐

Width

Device width

Find X9 Pro

74.2mm

Y400 Pro

75.3mm

📦

Thickness

Device thickness/depth

= Tie

Find X9 Pro

8.5mm

Y400 Pro

8.5mm

Difference: 0mm

Find X9 Pro

Y400 Pro

Winner in category

Last updated: March 23, 2026

Source: Official Source

Last updated: March 23, 2026

Source: Official Source

Why Trust Our Comparisons

Verified Data

All specs verified from official sources

No Affiliate Bias

We don't earn from product sales

Regularly Updated

Data refreshed when specs change

Transparent Method

Our comparison methodology is public

SizeVS Editorial Team

Verified

Product Comparison Specialists

Our team of tech enthusiasts and data analysts work to provide accurate, unbiased product comparisons.

Verified Data Sources Editorial Standards

Updated: March 24, 2026

Our methodology

Explore this matchup

View Find X9 Pro View Y400 Pro Screen Size Battery RAM Weight Storage

More related comparisons

Find X9vsFind X9 Pro

Compare specs & size →

Google Pixel 9 ProvsFind X9 Pro

Compare specs & size →

ROG Phone 9 ProvsFind X9 Pro

Compare specs & size →

iPhone 16 Pro MaxvsFind X9 Pro

Compare specs & size →

Galaxy S25 UltravsFind X9 Pro

Compare specs & size →

iPhone AirvsFind X9 Pro

Compare specs & size →