ASUS Zenbook DUO (2025) UX8406CA vs MSI Stealth 18 HX AI A2XW
57.2Performance69.6
38.4Display54.7
51Battery45.9
64.1Portability24.2
3 spec wins — ASUS Zenbook DUO (2025) UX8406CA8 spec wins — MSI Stealth 18 HX AI A2XW
InnoReviews verdict
This one is close to a dead heat: ASUS Zenbook DUO (2025) UX8406CA scores 52.4 against 52.5 for MSI Stealth 18 HX AI A2XW. Pick by the categories that matter to you — MSI Stealth 18 HX AI A2XW edges ahead in display and performance, or by price.
Which would you pick?
Key differences
Reasons to pick the ASUS Zenbook DUO (2025) UX8406CA
- Stronger battery score: 51 vs 46
- Stronger portability score: 64 vs 24
- 80% higher Web browsing endurance: 8.7 h vs 4.8 h
- 43% lower weight: 1.65 kg vs 2.89 kg
- 17% lower thickness: 19.9 mm vs 23.9 mm
- Lower launch price: $1,700 vs $4,200
Reasons to pick the MSI Stealth 18 HX AI A2XW
- Stronger performance score: 70 vs 57
- Stronger display score: 55 vs 38
- 331% higher charging: 280 W vs 65 W
- 100% higher Peak brightness: 1,000 nits vs 500 nits
- 100% higher RAM: 64 GB vs 32 GB
Display
| Spec | ASUS Zenbook DUO (2025) UX8406CA | MSI Stealth 18 HX AI A2XW |
|---|---|---|
| Screen size | 14 ″ | 18 ″+29% |
| Panel type | OLED (dual ASUS Lumina touchscreens, 100% DCI-P3) | Mini-LED (IPS-level, 100% DCI-P3, DisplayHDR 1000) |
| Resolution | 2880x1800 | 3840x2400 |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 500 nits | 1,000 nits+100% |
Performance
| Spec | ASUS Zenbook DUO (2025) UX8406CA | MSI Stealth 18 HX AI A2XW |
|---|---|---|
| Processor | Intel Core Ultra 9 285H | Intel Core Ultra 9 275HX |
| Graphics | Intel Arc Graphics 140T (integrated) | NVIDIA GeForce RTX 5090 Laptop GPU (24GB GDDR7, 150W) |
| RAM | 32 GB | 64 GB+100% |
| RAM type | LPDDR5X-7467 (soldered) | DDR5 SO-DIMM (2 slots, up to 96GB) |
| Storage | 1,024 GB | 2,048 GB+100% |
| Storage type | M.2 2280 NVMe PCIe 4.0 SSD | PCIe 4.0 NVMe SSD (1 M.2 slot) |
Benchmarks
| Spec | ASUS Zenbook DUO (2025) UX8406CA | MSI Stealth 18 HX AI A2XW |
|---|---|---|
| Geekbench 6 (single) | 2,952Top 25% | 3,066+4%Top 16% |
| Geekbench 6 (multi) | 16,048Top 30% | 19,607+22%Top 13% |
Battery
| Spec | ASUS Zenbook DUO (2025) UX8406CA | MSI Stealth 18 HX AI A2XW |
|---|---|---|
| Capacity | 75 Wh | 100 Wh+33% |
| Web browsing endurance | 8.7 h+80% | 4.8 h |
| Charging | 65 W | 280 W+331% |
Design
| Spec | ASUS Zenbook DUO (2025) UX8406CA | MSI Stealth 18 HX AI A2XW |
|---|---|---|
| Weight | 1.65 kg+43% | 2.89 kg |
| Thickness | 19.9 mm+17% | 23.9 mm |
| Material | Magnesium-aluminum alloy | Magnesium-aluminum alloy |
Connectivity
| Spec | ASUS Zenbook DUO (2025) UX8406CA | MSI Stealth 18 HX AI A2XW |
|---|---|---|
| Ports | 2x Thunderbolt 4 (40Gbps, display and power delivery), 1x USB 3.2 Gen 1 Type-A, 1x HDMI 2.1, 3.5mm combo audio jack | 2x Thunderbolt 4 (DisplayPort, Power Delivery 3.1), 2x USB-A 3.2 Gen 2, 1x HDMI 2.1, SD Express card reader, 2.5G Ethernet (RJ45), 3.5mm combo jack, Kensington lock |
| Wi-Fi | Wi-Fi 7 (802.11be) | Wi-Fi 7 (Intel Killer BE1750) |
| Bluetooth | 5.4 | 5.4 |
| Webcam | FHD with IR | 1080p IR with privacy shutter |
| Biometrics | IR face (Windows Hello) | Fingerprint reader, IR webcam |
Software
| Spec | ASUS Zenbook DUO (2025) UX8406CA | MSI Stealth 18 HX AI A2XW |
|---|---|---|
| Operating system | Windows 11 Home | Windows 11 Pro |
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