Acer Predator Helios 18 vs Legion 5 Pro Gen 9

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

100% Objective Comparisons — Data sourced from official manufacturers

See our methodology

100%

Legion 5 Pro Gen 9 is NaN% taller

Acer Predator Helios 18

30mm×410mm

Legion 5 Pro Gen 9

mm×355mm

Scaled to real proportions

Specifications Comparison

Acer Predator Helios 18

Acer

4 wins

Legion 5 Pro Gen 9

Lenovo

2 wins

📱

Display

Diagonal screen measurement

Better

Acer Predator Helios 18

18"

Legion 5 Pro Gen 9

16"

Difference: 2" (12.5% more)

⚖️

Weight

Total device weight

Better

Acer Predator Helios 18

3.25kg

Legion 5 Pro Gen 9

2.5kg

Difference: 0.75kg (30.0% less)

🔋

Battery

Battery capacity in watt-hours

Better

Acer Predator Helios 18

90Wh

Legion 5 Pro Gen 9

80Wh

Difference: 10Wh (12.5% more)

💾

RAM

Random Access Memory for multitasking

Better

Acer Predator Helios 18

64GB

Legion 5 Pro Gen 9

32GB

Difference: 32GB (100.0% more)

💿

Storage

Internal storage capacity

Better

Acer Predator Helios 18

2,048GB

Legion 5 Pro Gen 9

1,024GB

Difference: 1,024GB (100.0% more)

🧠

Processor

CPU/SoC model

Acer Predator Helios 18

Intel Core i9-14900HX

Legion 5 Pro Gen 9

AMD Ryzen 9 7945HX

💰

Price

Retail price in USD

Better

Acer Predator Helios 18

2,999$

Legion 5 Pro Gen 9

1,799$

Difference: 1,200$ (66.7% less)

Acer Predator Helios 18

Legion 5 Pro Gen 9

Winner in category

Last updated: March 22, 2026

Source: acer.com

Last updated: March 22, 2026

Source: lenovo.com

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 Acer Predator Helios 18 View Legion 5 Pro Gen 9 Display Weight Battery RAM Storage

More related comparisons

MacBook Pro M4 14vsLegion 5 Pro Gen 9

Compare specs & size →

Legion Pro 7ivsAcer Predator Helios 18

Compare specs & size →

Legion Pro 7ivsLegion 5 Pro Gen 9

Compare specs & size →

HP Omen 16vsLegion 5 Pro Gen 9

Compare specs & size →

ASUS ROG Zephyrus G14vsLegion 5 Pro Gen 9

Compare specs & size →

Legion Pro 5i Gen 9vsAcer Predator Helios 18

Compare specs & size →