Samsung - Galaxy Book4 Ultra vs MSI - Stealth 14 AI Studio
Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Samsung - Galaxy Book4 Ultra | MSI - Stealth 14 AI Studio |
|---|---|---|
| Screen size | 16 " | 14 " |
| Claimed battery life | 11 h | 10 h |
| Battery | 76 Wh | 72 Wh |
| Weight | 1.86 kg | 1.7 kg |
Between the Galaxy Book4 Ultra and Stealth 14 AI Studio, the Galaxy Book4 Ultra comes out ahead in screen size / claimed battery life, while the Stealth 14 AI Studio wins on weight. Overall, the Galaxy Book4 Ultra scores 70.3 and the Stealth 14 AI Studio scores 68.8 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (70.3 vs 68.8). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.
Pick the Galaxy Book4 Ultra if your top frustration with your current device is running out of charge before the day ends — endurance is the lead spec here. The biggest gaps in its favor are screen size, claimed battery life, battery. The single most decisive one: Screen size — 14.29% more. 16 " vs 14 ".
Pick the Stealth 14 AI Studio if you carry the device everywhere and weight or thickness has been the deciding factor before. Its strongest claims are weight. The single most decisive one: Weight — 0.16 kg less. 1.7 vs 1.86.
Both ship with comparable ram, storage, refresh rate, so those specs do not separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity says both are well-rounded; the differences are about trade-offs, not quality.
Which should you buy: Samsung - Galaxy Book4 Ultra or MSI - Stealth 14 AI Studio?
Samsung - Galaxy Book4 Ultra leads the current Mars Score by 1.5 points.The more useful decision is the trade-off behind that result: compare screen size, weight, battery against the way you will actually use the product.
Choose Samsung - Galaxy Book4 Ultra if…
Samsung - Galaxy Book4 Ultra has the measurable edge on screen size in, claimed battery h, battery wh.
Choose MSI - Stealth 14 AI Studio if…
MSI - Stealth 14 AI Studio has the measurable edge on weight kg.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Samsung - Galaxy Book4 Ultra wins
- ▲Screen size — 14.29% more. 16 " vs 14 ".
- ▲Claimed battery life — 10.00% more. 11 h vs 10 h.
- ▲Battery — 5.56% more. 76 Wh vs 72 Wh.
Why MSI - Stealth 14 AI Studio wins
- ▲Weight — 0.16 kg less. 1.7 vs 1.86.
Spec comparison
Design
| Spec | Samsung - Galaxy Book4 Ultra | MSI - Stealth 14 AI Studio |
|---|---|---|
| Weight | 1.86 kg | 1.7 kglead |
| Thickness | 16.5 mmlead | 19 mm |
| Build material | aluminum | aluminum |
| Backlit keyboard | true | true |
| Fingerprint reader | true | true |
Display
| Spec | Samsung - Galaxy Book4 Ultra | MSI - Stealth 14 AI Studio |
|---|---|---|
| Screen size | 16 "lead | 14 " |
| Refresh rateⓘ | 120 Hz | 120 Hz |
| Panel typeⓘ | OLED | OLED |
Performance
| Spec | Samsung - Galaxy Book4 Ultra | MSI - Stealth 14 AI Studio |
|---|---|---|
| CPU | Intel Core Ultra 9 185H | Intel Core Ultra 9 185H |
| CPU cores | 16 | 16 |
| GPUⓘ | NVIDIA RTX 4070 Laptop | NVIDIA GeForce RTX 4070 (Laptop) |
| RAMⓘ | 32 GB | 32 GB |
| Storageⓘ | 1024 GB | 1024 GB |
| Storage typeⓘ | SSD | SSD |
Battery & Ports
| Spec | Samsung - Galaxy Book4 Ultra | MSI - Stealth 14 AI Studio |
|---|---|---|
| Batteryⓘ | 76 Whlead | 72 Wh |
| Claimed battery life | 11 hlead | 10 h |
| USB-C portsⓘ | 1 | 1 |
| Thunderbolt portsⓘ | 2 | 2 |
| HDMI | true | true |
Frequently asked
Which has better battery life, Galaxy Book4 Ultra or Stealth 14 AI Studio?+
Galaxy Book4 Ultra claims up to 11 hours — 11h vs 10h.
Which is lighter, Galaxy Book4 Ultra or Stealth 14 AI Studio?+
Stealth 14 AI Studio is lighter at 1.7 kg vs 1.86 kg.
Which has an OLED display, Galaxy Book4 Ultra or Stealth 14 AI Studio?+
Both have OLED displays.