Samsung Galaxy S25 Ultra vs Asus Zenfone 9
Verdict
Our overall take, at a glance
Key takeaways
- Samsung Galaxy S25 Ultra leads Asus Zenfone 9 overall by 28 points (85 vs 57 out of 100).
- Samsung Galaxy S25 Ultra stands out on Memory RAM capacity: 12 GB, Storage capacity: 256 GB, Display Size: 6.9 in.
- Best value: Asus Zenfone 9 (from $699) — the strongest score-per-dollar of the two.
Samsung Galaxy S25 Ultra leads overall
Samsung Galaxy S25 Ultra
85
Asus Zenfone 9
57
Why it stands out
- Memory RAM capacity: 12 GB
- Storage capacity: 256 GB
- Display Size: 6.9 in
In-depth analysisAI
AI-generated from the cited sources — may be incomplete or inaccurate; verify important details before deciding · generated Jun 2026.
Samsung Galaxy S25 Ultra
AI analysis isn't ready yet
We haven't generated an in-depth write-up for Samsung Galaxy S25 Ultra yet. The specs, scores and strengths profile above still cover it — check back later for the AI summary.
Asus Zenfone 9
The Asus ZenFone 9 is a compact flagship smartphone within the ZenFone series. It maintains a small form factor, making it easily portable despite housing advanced specifications. The device is suited for users who prefer smaller screens and pocketable hardware without sacrificing performance.
Best for PortabilityBest for Single-hand useBest for Users preferring smaller smartphones
Pros
- Features a compact 5.9-inch display with a fast refresh rate and anti-fingerprint coating
- Equipped with a large 4300 mAh battery capacity
- Includes features such as IP68 rated dust and water resistance
- Utilizes a fast charge of up to 30W
- The design is generally considered comfortable for extended single-hand use.
Cons
- The previous model's polymer back panel was described by one source as feeling rubbery.
- Some sources noted that the display collected visible scratches over time, common to Gorilla Glass Victus screens.
Value for Money
Which is the better deal for the price
Pre-filled with launch prices where known — enter today's price for an up-to-date check. Use the same currency for both.
Samsung Galaxy S25 Ultra
Asus Zenfone 9
Performance
Higher benchmark score = faster
Samsung Galaxy S25 Ultra2,209,231
Asus Zenfone 91,099,826
Benchmark score — a measured indicator of raw performance, not a guarantee of real-world speed.
Battery capacity
Larger cell — a hardware spec, not battery life
Samsung Galaxy S25 Ultra5,000 mAh
Asus Zenfone 94,300 mAh
Capacity is the raw battery size. Real-world battery life depends just as much on the processor, software and display.
Physical Comparison
Weigh them up, then compare real dimensions in 3D
Samsung Galaxy S25 UltraAsus Zenfone 9
Samsung Galaxy S25 Ultra is 49 g (29%) heavier than Asus Zenfone 9.
Review Videos
Hand-picked expert reviews for each product
Detailed Specifications
The full spec sheet, side by side