Microsoft - Surface Laptop 7 (15) vs ASUS - Zenbook S 14 UX5406
Between the Surface Laptop 7 (15) and Zenbook S 14 UX5406, the Surface Laptop 7 (15) comes out ahead in cpu cores and claimed battery life, while the Zenbook S 14 UX5406 wins on ram and storage. Overall, the Surface Laptop 7 (15) scores 61.7 and the Zenbook S 14 UX5406 scores 64.2 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (61.7 vs 64.2). The decision isn't about overall quality — both clear the bar — it's about which specific trade-offs fit your use.
Pick the Surface Laptop 7 (15) 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 cpu cores, claimed battery life, screen size.
Pick the Zenbook S 14 UX5406 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 ram, storage, battery, among others.
Both ship with comparable refresh rate, backlit keyboard, so those specs don't 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 tells you both are well-rounded; the differences are about trade-offs, not quality.
Why Microsoft - Surface Laptop 7 (15) wins
- ▲CPU cores — 50.00% more. 12 vs 8.
- ▲Claimed battery life — 37.50% more. 22 h vs 16 h.
- ▲Screen size — 7.14% more. 15 " vs 14 ".
Why ASUS - Zenbook S 14 UX5406 wins
- ▲RAM — 100.00% more. 32 GB vs 16 GB.
- ▲Storage — 100.00% more. 1024 GB vs 512 GB.
- ▲Battery — 9.09% more. 72 Wh vs 66 Wh.
- ▲Thunderbolt ports — 2.00 more. 2 vs 0.
- ▲Panel type: OLED (vs IPS).
- ▲Weight — 0.46 kg less. 1.20 vs 1.66.
Spec comparison
Design
| Spec | Microsoft - Surface Laptop 7 (15) | ASUS - Zenbook S 14 UX5406 |
|---|---|---|
| Weight | 1.66 kg | 1.20 kglead |
| Thickness | 18.29 mm | 11.9 mmlead |
| Build material | aluminum | ceraluminum |
| Backlit keyboard | true | true |
| Fingerprint reader | true | true |
Display
| Spec | Microsoft - Surface Laptop 7 (15) | ASUS - Zenbook S 14 UX5406 |
|---|---|---|
| Screen sizeⓘ | 15 "lead | 14 " |
| Refresh rateⓘ | 120 Hz | 120 Hz |
| Panel typeⓘ | IPS | OLEDlead |
Performance
| Spec | Microsoft - Surface Laptop 7 (15) | ASUS - Zenbook S 14 UX5406 |
|---|---|---|
| CPU | Snapdragon X Elite X1E-80-100 | Intel Core Ultra 7 258V |
| CPU cores | 12lead | 8 |
| GPUⓘ | Qualcomm Adreno | Intel Arc 140V |
| RAMⓘ | 16 GB | 32 GBlead |
| Storageⓘ | 512 GB | 1024 GBlead |
| Storage typeⓘ | SSD | SSD |
Battery & Ports
| Spec | Microsoft - Surface Laptop 7 (15) | ASUS - Zenbook S 14 UX5406 |
|---|---|---|
| Batteryⓘ | 66 Wh | 72 Whlead |
| Claimed battery life | 22 hlead | 16 h |
| USB-C ports | 2 | 2 |
| Thunderbolt portsⓘ | 0 | 2lead |
| HDMI | false | truelead |
Frequently asked
Which has better battery life, Surface Laptop 7 (15) or Zenbook S 14 UX5406?+
Surface Laptop 7 (15) claims up to 22 hours — 22h vs 16h.
Which is lighter, Surface Laptop 7 (15) or Zenbook S 14 UX5406?+
Zenbook S 14 UX5406 is lighter at 1.20 kg vs 1.66 kg.
Which has more RAM, Surface Laptop 7 (15) or Zenbook S 14 UX5406?+
Zenbook S 14 UX5406 offers 32GB of RAM.
Which has an OLED display, Surface Laptop 7 (15) or Zenbook S 14 UX5406?+
Zenbook S 14 UX5406 has an OLED display; Surface Laptop 7 (15) uses IPS.
Spec-level deep dives
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