Galaxy Z Fold7 vs Y31

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

100% Objective Comparisons — Data sourced from official manufacturers

See our methodology

100%

Galaxy Z Fold7 is 3.8% taller

Galaxy Z Fold7

158.4mm×143.2mm

Y31

164.4mm×76.1mm

Scaled to real proportions

Specifications Comparison

Galaxy Z Fold7

Samsung

4 wins

Y31

vivo

3 wins

📱

Screen Size

Diagonal screen measurement

Better

Galaxy Z Fold7

6.7"

Y31

6.58"

Difference: 0.12" (1.8% more)

🔋

Battery

Battery capacity in milliamp-hours

Better

Galaxy Z Fold7

4,400mAh

Y31

5,000mAh

Difference: 600mAh (13.6% more)

💾

RAM

Random Access Memory for multitasking

Better

Galaxy Z Fold7

12GB

Y31

8GB

Difference: 4GB (50.0% more)

⚖️

Weight

Total device weight

Better

Galaxy Z Fold7

215g

Y31

190g

Difference: 25g (13.2% less)

💿

Storage

Internal storage capacity

Better

Galaxy Z Fold7

256GB

Y31

128GB

Difference: 128GB (100.0% more)

📷

Main Camera

Main camera resolution

= Tie

Galaxy Z Fold7

50MP

Y31

50MP

Difference: 0MP

💰

Price

Retail price in USD

Better

Galaxy Z Fold7

1,599$

Y31

299$

Difference: 1,300$ (434.8% less)

📏

Height

Device height

Galaxy Z Fold7

158.4mm

Y31

164.4mm

📐

Width

Device width

Galaxy Z Fold7

143.2mm

Y31

76.1mm

📦

Thickness

Device thickness/depth

Better

Galaxy Z Fold7

4.2mm

Y31

8.3mm

Difference: 4.1mm (97.6% less)

Galaxy Z Fold7

Y31

Winner in category

Last updated: March 23, 2026

Source: gsmarena.com

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 Galaxy Z Fold7 View Y31 Screen Size Battery RAM Weight Storage

More related comparisons

Google Pixel 9 ProvsGalaxy Z Fold7

Compare specs & size →

iPhone 16 Pro MaxvsGalaxy Z Fold7

Compare specs & size →

Xiaomi 14 UltravsGalaxy Z Fold7

Compare specs & size →

Galaxy Z Fold7vsGalaxy S25 Ultra

Compare specs & size →

Galaxy Z Fold7vsGalaxy S25 Edge

Compare specs & size →

Galaxy Z Fold7vsiPhone 15 Plus

Compare specs & size →