In depth comparison and review of ASUS ZenBook S UX391UA (ET087T) and ASUS ZenBook 14X OLED (UX5401FEA). Compare sizes, performance, storage capacities, batteries and other important specifications and features to easily choose the right laptop for you. Our goal is to help you uncover differences between the products and find the laptop that will best fit your needs.
Advantages and disadvantages of ASUS ZenBook S UX391UA (ET087T) based on its technical characteristics, features, user experience, expert reviews and price level.
affordable price
solid build quality
decent processor performance
ample storage capacity
good keyboard layout
average display quality
no backlit keyboard
limited graphics performance
mediocre battery life
Advantages and disadvantages of ASUS ZenBook 14X OLED (UX5401FEA) based on its technical characteristics, features, user experience, expert reviews and price level.
vibrant oled display
compact lightweight design
powerful intel processor
fast ssd storage
good battery life
limited port selection
higher price point
no dedicated gpu
average speaker quality
| DESIGN AND DIMENSIONS | ASUS ZenBook S UX391UA (ET087T) | ASUS ZenBook 14X OLED (UX5401FEA) |
|---|
| Product Type | Notebook | Notebook - 180-degree hinge design |
|---|---|---|
| Dimensions (WxDxH) | 31.1 cm x 21.3 cm x 1.29 cm | 31.1 cm x 22.3 cm x 1.59 cm |
| Weight | 1 kg | 1.4 kg |
| Colour | Deep dive blue | Pine grey |
| DISPLAY | ASUS ZenBook S UX391UA (ET087T) | ASUS ZenBook 14X OLED (UX5401FEA) |
|---|
| Screen Size (Type) | 13.3" | 14" OLED |
|---|---|---|
| Touchscreen | - | Yes |
| LCD Backlight Technology | LED backlight | - |
| Screen Resolution | 1920 x 1080 (Full HD) | 3840 x 2400 (4K) |
| V-Sync Rate at Max Res. | - | 60 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:10 |
| Image Brightness | 300 cd/m² | 550 cd/m² |
| Colour Gamut | 72% NTSC | 100% DCI-P3 |
| Colour Support | - | 1.07 billion colours |
| Features | Ultra Slim Design, anti-glare, WideView, 178° horizontal and vertical viewing angle | Blue light reduction, Pantone Validated, HDR 500 True Black, 88% screen-to-body ratio, 0.2 ms response rate |
| PROCESSOR | ASUS ZenBook S UX391UA (ET087T) | ASUS ZenBook 14X OLED (UX5401FEA) |
|---|
| CPU | Intel Core i7 (8th Gen) 8550U / 1.8 GHz | Intel Core i7 (11th Gen) 1165G7 / 2.8 GHz |
|---|---|---|
| Max Turbo Speed | 4 GHz | 4.7 GHz |
| Number of Cores | Quad-Core | Quad-Core |
| Cache | 8 MB | 12 MB |
| 64-bit Computing | Yes | - |
| Features | Intel Turbo Boost Technology 2.0 | Intel Smart Cache |
| MEMORY | ASUS ZenBook S UX391UA (ET087T) | ASUS ZenBook 14X OLED (UX5401FEA) |
|---|
| RAM | 8 GB (provided memory is soldered) | 16 GB (provided memory is soldered) |
|---|---|---|
| RAM Type | LPDDR3 SDRAM | LPDDR5 SDRAM |
| Speed | 2133 MHz | - |
| Rated Speed | 2133 MHz | - |
| STORAGE | ASUS ZenBook S UX391UA (ET087T) | ASUS ZenBook 14X OLED (UX5401FEA) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 SATA 6Gb/s | 512 GB SSD M.2 PCIe 4.0 - NVM Express (NVMe), Performance |
|---|
| AUDIO & VIDEO | ASUS ZenBook S UX391UA (ET087T) | ASUS ZenBook 14X OLED (UX5401FEA) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics 620 | Intel Iris Xe Graphics |
|---|---|---|
| Video System Features | - | Functions as Intel UHD graphics (for single-channel memory) |
| Camera | Yes - HD | Yes - 720p |
| Sound | Harman/kardon stereo speakers, array microphone | Harman/kardon stereo speakers, array microphone |
| Audio Features | ASUS SonicMaster | Input: AI noise cancelling |
| COMMUNICATIONS | ASUS ZenBook S UX391UA (ET087T) | ASUS ZenBook 14X OLED (UX5401FEA) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 4.2 | 802.11a/b/g/n/ac/ax, Bluetooth 5.3 |
|---|---|---|
| Network Interface | - | Gigabit Ethernet |
| Features | - | Dual stream (2x2) |
| BATTERY | ASUS ZenBook S UX391UA (ET087T) | ASUS ZenBook 14X OLED (UX5401FEA) |
|---|
| Technology | 4-cell | 3-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 50 Wh | 63 Wh |
| Battery Life | Up to 13.5 hours | - |
| AC ADAPTER | ASUS ZenBook S UX391UA (ET087T) | ASUS ZenBook 14X OLED (UX5401FEA) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt, 20 V | 100 Watt, 20 V, 5 A |
| INPUT | ASUS ZenBook S UX391UA (ET087T) | ASUS ZenBook 14X OLED (UX5401FEA) |
|---|
| Type | Keyboard, touchpad | Keyboard, stylus, NumberPad 2.0 |
|---|---|---|
| Keyboard Backlight | Yes | Yes |
| Features | - | Chiclet keyboard |
| CONNECTIONS & EXPANSIONS | ASUS ZenBook S UX391UA (ET087T) | ASUS ZenBook 14X OLED (UX5401FEA) |
|---|
| Interfaces | Headphone/microphone combo jack USB-C 3.1 Gen 1 (Power Delivery/data/video) 2 x USB-C 3.1 Gen 2 (supports Thunderbolt 3) (Power Delivery/data/video) |
HDMI 2.0b Headphone/microphone combo jack USB 3.2 Gen 2 2 x Thunderbolt 4 (supports DisplayPort) (Power Delivery) LAN (on supplied adapter) |
|---|---|---|
| Memory Card Reader | - | Yes (microSD) |
| SOFTWARE | ASUS ZenBook S UX391UA (ET087T) | ASUS ZenBook 14X OLED (UX5401FEA) |
|---|
| Operating System (OS) | Windows 10 Home | Windows 11 Pro |
|---|---|---|
| Software Included | - | McAfee LiveSafe, Microsoft 365 (1 month trial) |
| MISCELLANEOUS | ASUS ZenBook S UX391UA (ET087T) | ASUS ZenBook 14X OLED (UX5401FEA) |
|---|
| Included Accessories | USB-C power adapter | USB-C power adapter |
|---|---|---|
| Security | Firmware Trusted Platform Module (TPM) Security Chip | Firmware Trusted Platform Module (TPM) Security Chip, fingerprint reader |
| Features | - | System password, ErgoLift, MIL-STD-810H tested |
| Compliant Standards | - | SGS Eye Care Display Certification |
| Model Number | - | KU106X |
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