Between the XPS 13 (9350) and Zenbook S 14 UX5406, the XPS 13 (9350) comes out ahead in cpu cores / claimed battery life, while the Zenbook S 14 UX5406 wins on ram / storage. Overall, the XPS 13 (9350) scores 54.7 and the Zenbook S 14 UX5406 scores 64.2 on our Mars Score.
Which should you buy?
The Zenbook S 14 UX5406 is the clear pick on raw spec strength, leading by 9.5 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the XPS 13 (9350) 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, weight.
Pick the Zenbook S 14 UX5406 if the display is what you stare at all day — refresh rate, brightness, or sharpness is where the difference will be most visible. Its strongest claims are ram, storage, refresh rate, among others.
Both ship with comparable panel type, backlit keyboard, so those specs do not separate the two — focus on the differences below.
Bottom line: the Zenbook S 14 UX5406 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Dell - XPS 13 (9350) wins
- ▲CPU cores — 50.00% more. 12 vs 8.
- ▲Claimed battery life — 25.00% more. 20 h vs 16 h.
- ▲Weight — 0.01 kg less. 1.19 vs 1.20.
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.
- ▲Refresh rate — 100.00% more. 120 Hz vs 60 Hz.
- ▲Battery — 30.91% more. 72 Wh vs 55 Wh.
- ▲Screen size — 4.48% more. 14 " vs 13.4 ".
- ▲Thunderbolt ports — 2.00 more. 2 vs 0.
Spec comparison
Design
| Spec | Dell - XPS 13 (9350) | ASUS - Zenbook S 14 UX5406 |
|---|---|---|
| Weight | 1.19 kglead | 1.20 kg |
| Thickness | 14.8 mm | 11.9 mmlead |
| Build material | aluminum | ceraluminum |
| Backlit keyboard | true | true |
| Fingerprint reader | true | true |
Display
| Spec | Dell - XPS 13 (9350) | ASUS - Zenbook S 14 UX5406 |
|---|---|---|
| Screen sizeⓘ | 13.4 " | 14 "lead |
| Refresh rateⓘ | 60 Hz | 120 Hzlead |
| Panel typeⓘ | OLED | OLED |
Performance
| Spec | Dell - XPS 13 (9350) | ASUS - Zenbook S 14 UX5406 |
|---|---|---|
| CPU | Snapdragon X Elite | 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 | Dell - XPS 13 (9350) | ASUS - Zenbook S 14 UX5406 |
|---|---|---|
| Batteryⓘ | 55 Wh | 72 Whlead |
| Claimed battery life | 20 hlead | 16 h |
| USB-C ports | 2 | 2 |
| Thunderbolt portsⓘ | 0 | 2lead |
| HDMI | false | truelead |
Frequently asked
Which has better battery life, XPS 13 (9350) or Zenbook S 14 UX5406?+
XPS 13 (9350) claims up to 20 hours — 20h vs 16h.
Which is lighter, XPS 13 (9350) or Zenbook S 14 UX5406?+
XPS 13 (9350) is lighter at 1.19 kg vs 1.20 kg.
Which has more RAM, XPS 13 (9350) or Zenbook S 14 UX5406?+
Zenbook S 14 UX5406 offers 32GB of RAM.
Which has an OLED display, XPS 13 (9350) or Zenbook S 14 UX5406?+
Both have OLED displays.
Spec-level deep dives
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