Samsung - Galaxy Book4 Ultra vs ASUS - Vivobook S 14 OLED (2025)
Between the Galaxy Book4 Ultra and Vivobook S 14 OLED (2025), the Galaxy Book4 Ultra comes out ahead in ram / cpu cores, while the Vivobook S 14 OLED (2025) wins on claimed battery life / weight. Overall, the Galaxy Book4 Ultra scores 70.1 and the Vivobook S 14 OLED (2025) scores 63.6 on our Mars Score.
Which should you buy?
The Galaxy Book4 Ultra edges ahead on the Mars Score (70.1 vs 63.6), but the 6.5-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Galaxy Book4 Ultra if the display is what you stare at all day — refresh rate, brightness, or sharpness is where the difference will be most visible. The biggest gaps in its favor are ram, cpu cores, screen size, among others.
Pick the Vivobook S 14 OLED (2025) if your top frustration with your current device is running out of charge before the day ends — endurance is the lead spec here. Its strongest claims are claimed battery life, weight.
Both ship with comparable storage, refresh rate, panel type, so those specs do not separate the two — focus on the differences below.
Bottom line: the Galaxy Book4 Ultra is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Samsung - Galaxy Book4 Ultra wins
- ▲RAM — 100.00% more. 32 GB vs 16 GB.
- ▲CPU cores — 60.00% more. 16 vs 10.
- ▲Screen size — 14.29% more. 16 " vs 14 ".
- ▲Thunderbolt ports — 2.00 more. 2 vs 0.
- ▲Battery — 1.33% more. 76 Wh vs 75 Wh.
Why ASUS - Vivobook S 14 OLED (2025) wins
- ▲Claimed battery life — 45.45% more. 16 h vs 11 h.
- ▲Weight — 0.56 kg less. 1.3 vs 1.86.
Spec comparison
Design
| Spec | Samsung - Galaxy Book4 Ultra | ASUS - Vivobook S 14 OLED (2025) |
|---|---|---|
| Weight | 1.86 kg | 1.3 kglead |
| Thickness | 16.5 mm | 13.9 mmlead |
| Build material | aluminum | aluminum |
| Backlit keyboard | true | true |
| Fingerprint reader | true | true |
Display
| Spec | Samsung - Galaxy Book4 Ultra | ASUS - Vivobook S 14 OLED (2025) |
|---|---|---|
| Screen sizeⓘ | 16 "lead | 14 " |
| Refresh rateⓘ | 120 Hz | 120 Hz |
| Panel typeⓘ | OLED | OLED |
Performance
| Spec | Samsung - Galaxy Book4 Ultra | ASUS - Vivobook S 14 OLED (2025) |
|---|---|---|
| CPU | Intel Core Ultra 9 185H | AMD Ryzen AI 9 365 |
| CPU cores | 16lead | 10 |
| GPUⓘ | NVIDIA RTX 4070 Laptop | AMD Radeon 880M |
| RAMⓘ | 32 GBlead | 16 GB |
| Storageⓘ | 1024 GB | 1024 GB |
| Storage typeⓘ | SSD | SSD |
Battery & Ports
| Spec | Samsung - Galaxy Book4 Ultra | ASUS - Vivobook S 14 OLED (2025) |
|---|---|---|
| Batteryⓘ | 76 Whlead | 75 Wh |
| Claimed battery life | 11 h | 16 hlead |
| USB-C ports | 1 | 2lead |
| Thunderbolt portsⓘ | 2lead | 0 |
| HDMI | true | true |
Frequently asked
Which has better battery life, Galaxy Book4 Ultra or Vivobook S 14 OLED (2025)?+
Vivobook S 14 OLED (2025) claims up to 16 hours — 11h vs 16h.
Which is lighter, Galaxy Book4 Ultra or Vivobook S 14 OLED (2025)?+
Vivobook S 14 OLED (2025) is lighter at 1.3 kg vs 1.86 kg.
Which has more RAM, Galaxy Book4 Ultra or Vivobook S 14 OLED (2025)?+
Galaxy Book4 Ultra offers 32GB of RAM.
Which has an OLED display, Galaxy Book4 Ultra or Vivobook S 14 OLED (2025)?+
Both have OLED displays.
Spec-level deep dives
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