ASUS Zenbook 14 OLED (UX3405CA) vs Dell 14S
The ASUS Zenbook 14 OLED is the better laptop on paper: it has more storage, has a brighter screen and has a touchscreen. Pick the Dell 14S only if it matters to you that it has Copilot+ AI features.
We earn a commission from qualifying Amazon purchases made through our links, at no extra cost to you. This never affects our specs. How we make money.
Key differences
- Storage ASUS Zenbook 14 OLED wins
The ASUS Zenbook 14 OLED has twice the storage: 1 TB against 512 GB.
- Brightness ASUS Zenbook 14 OLED wins
The ASUS Zenbook 14 OLED's screen is brighter (400 against 300 nits), so it's easier to see near a window.
- Touchscreen ASUS Zenbook 14 OLED wins
Only the ASUS Zenbook 14 OLED has a touchscreen.
- Ports ASUS Zenbook 14 OLED wins
Only the ASUS Zenbook 14 OLED has USB-A.
- Extras Dell 14S wins
Only the Dell 14S has Copilot+ AI features.
Which one should you choose?
Choose the ASUS Zenbook 14 OLED if…
- You store lots of photos, videos or games: it has 1 TB of storage.
- You work near windows or outside: its screen is brighter at 400 nits.
- You like to tap, scroll and sign things on screen: it has a touchscreen.
- You plug things in: it has USB-A (for older USB accessories).
Choose the Dell 14S if…
- You want Copilot+ AI features, handy for Windows' newest AI tools.
- You prefer the newer model: it came out in 2026.
- You want a slim laptop that slips into a bag: it's 6.9 mm thick.
Full spec comparison
Add more laptopsThe ASUS Zenbook 14 OLED leads on performance and the screen; elsewhere the two are closely matched. Highlighted values mark the better spec in each row, and you can hide the rows where they match.
Performance
The ASUS Zenbook 14 OLED is ahead on performance.
It has more storage, and the Dell 14S doesn't beat it on anything here.
| Spec | ASUS Zenbook 14 OLED (UX3405CA) | Dell 14S |
|---|---|---|
| Processor | Intel Core Ultra 7 255H | AMD Ryzen AI 7 445 |
| Graphics | Intel Arc 140T | AMD Radeon 840M Graphics |
| AI engine (NPU) | 13 TOPS | 50 TOPS |
| Memory (RAM) | 16 GB | 16 GB |
| Memory type | LPDDR5X | LPDDR5x-8000 |
| Maximum memory | 16 GB | 16 GB |
| Memory upgrades | Soldered (not upgradeable) | Soldered (not upgradeable) |
| Storage | 1 TB | 512 GB |
| Storage type | SSD | SSD |
| Storage interface | PCIe 4.0 NVMe M.2 2280 | PCIe 4.0 x4 NVMe M.2 2230 |
| Storage slots | 1 | 1 |
Screen
The ASUS Zenbook 14 OLED is ahead on the screen.
It has a brighter screen and has a touchscreen, and the Dell 14S doesn't beat it on anything here.
| Spec | ASUS Zenbook 14 OLED (UX3405CA) | Dell 14S |
|---|---|---|
| Screen size | 14" | 14" |
| Resolution | Full HD+ (1920 x 1200) | Full HD+ (1920 x 1200) |
| Aspect ratio | 16:10 | 16:10 |
| Panel | OLED | OLED |
| Refresh rate | 60 Hz | 60 Hz |
| Variable refresh (VRR) | No | No |
| Brightness | 400 nits | 300 nits |
| Colour range | 100% DCI-P3 | 100% DCI-P3 |
| HDR | VESA DisplayHDR True Black 500 | — |
| Finish | Glossy | Matte |
| Touchscreen | Yes | No |
| Pen standard | MPP 2.0 | — |
Battery and size
Each laptop has its strengths on battery and weight.
The ASUS Zenbook 14 OLED has a bigger battery and is a little lighter, while the Dell 14S is slimmer.
| Spec | ASUS Zenbook 14 OLED (UX3405CA) | Dell 14S |
|---|---|---|
| Battery capacity | 75 Wh | 70 Wh |
| Charger | 65 W | 65 W |
| Charges via | USB-C | USB-C |
| Fast charging | — | ExpressCharge: full charge in about 2 hours (standard charge 3 hours) |
| Weight | 1.28 kg | 1.46 kg |
| Dimensions | 312.4 x 220.1 x 14.9 mm | 313.7 x 224.0 x 6.89-11.40 mm |
| Materials | — | Aluminium (Dell: 'refined aluminum', recycled aluminum and plastics) |
| Durability | US MIL-STD-810H | Military-grade testing (MIL-STD standard not named) |
| Hinge | — | 180-degree lay-flat |
| Colour | Ponder Blue | Frost Blue |
| Colours available | Ponder Blue, Jasper Gray, Foggy Silver | Celestial Blue, Frost Blue |
Ports and wireless
The ASUS Zenbook 14 OLED is ahead on ports and wireless.
It has USB-A, and the Dell 14S doesn't beat it on anything here.
| Spec | ASUS Zenbook 14 OLED (UX3405CA) | Dell 14S |
|---|---|---|
| Ports | 2x Thunderbolt 4 (USB-C, both support charging and DisplayPort, up to 40Gbps), 1x USB-A 3.2 Gen 1 (5Gbps), 1x HDMI 2.1 (TMDS), 1x 3.5 mm combo audio | 2x USB4 Type-C (40 Gbps, charging via Power Delivery, DisplayPort 2.1), 2x USB 3.2 Gen 1 (5 Gbps), 1x HDMI 2.1, 1x 3.5 mm global headset |
| Thunderbolt / USB4 | 2x Thunderbolt 4 (40 Gbps) | USB4 40Gbps |
| External displays (max) | — | 3 |
| Card reader | None | None |
| Ethernet | None | None |
| Wi-Fi | Wi-Fi 7 | Wi-Fi 7 |
| Wi-Fi card | — | MediaTek MT7925 (Wi-Fi 7, 2x2, MU-MIMO) |
| Bluetooth | Bluetooth 5.4 | Bluetooth 5.4 |
| Mobile data | None | None |
Features
The Dell 14S is ahead on extras.
It has Copilot+ AI features, and the ASUS Zenbook 14 OLED doesn't beat it on anything here.
| Spec | ASUS Zenbook 14 OLED (UX3405CA) | Dell 14S |
|---|---|---|
| Webcam | 1080p + IR | 1080p + IR |
| Webcam privacy | physical shutter | — |
| Backlit keyboard | Yes | Yes |
| Keyboard | backlit chiclet, 1.4 mm key travel, Copilot key | Spill-resistant, backlit, dedicated AI hotkey, 18.05 mm key pitch |
| Login | Face | Face |
| Number pad | No | — |
| Touchpad | precision touchpad | 130 x 90 mm touchpad |
| Speakers | Harman Kardon stereo speakers | 2 speakers, 2 W + 2 W average (10 W + 10 W peak), Cirrus Logic SmartAmps, Dolby Atmos tuned |
| Microphones | built-in array microphone | dual-array digital microphones |
| Pen | Supported (sold separately) | No |
| Security | TPM 2.0, Windows Hello face recognition | TPM 2.0 (discrete) |
Software and model
The Dell 14S is ahead on software and updates.
It is newer, and the ASUS Zenbook 14 OLED doesn't beat it on anything here.
| Spec | ASUS Zenbook 14 OLED (UX3405CA) | Dell 14S |
|---|---|---|
| Operating system | Windows 11 Home | Windows 11 Home |
| Model number | UX3405CA-QL192W | DDS14265-A455BLU-PGB |
| Released | 2025 | 2026 |