In depth comparison and review of ASUS ZenBook S UX391UA (ET087T) and ASUS ExpertBook B9 OLED (B9403CVA). 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 ExpertBook B9 OLED (B9403CVA) based on its technical characteristics, features, user experience, expert reviews and price level.
lightweight and portable
impressive oled display
fast performance specs
robust security features
long battery life
higher price point
limited graphics power
no ethernet port
scarce color accuracy
| DESIGN AND DIMENSIONS | ASUS ZenBook S UX391UA (ET087T) | ASUS ExpertBook B9 OLED (B9403CVA) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 31.1 cm x 21.3 cm x 1.29 cm | 31.1 cm x 21.5 cm x 1.57 cm |
| Weight | 1 kg | 990 g |
| Case Material | - | Magnesium-lithium alloy |
| Colour | Deep dive blue | Star black |
| DISPLAY | ASUS ZenBook S UX391UA (ET087T) | ASUS ExpertBook B9 OLED (B9403CVA) |
|---|
| Screen Size (Type) | 13.3" | 14" OLED |
|---|---|---|
| LCD Backlight Technology | LED backlight | - |
| Screen Resolution | 1920 x 1080 (Full HD) | 2880 x 1800 (WQXGA+) |
| V-Sync Rate at Max Res. | - | 90 Hz |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:10 |
| Image Brightness | 300 cd/m² | 400 cd/m² |
| Colour Gamut | 72% NTSC | 100% sRGB |
| Features | Ultra Slim Design, anti-glare, WideView, 178° horizontal and vertical viewing angle | 90% screen-to-body ratio |
| PROCESSOR | ASUS ZenBook S UX391UA (ET087T) | ASUS ExpertBook B9 OLED (B9403CVA) |
|---|
| CPU | Intel Core i7 (8th Gen) 8550U / 1.8 GHz | Intel Core i7 (13th Gen) 1355U / 1.8 GHz |
|---|---|---|
| Max Turbo Speed | 4 GHz | 5.1 GHz |
| Number of Cores | Quad-Core | 10-core |
| Cache | 8 MB | L3 - 12 MB |
| 64-bit Computing | Yes | - |
| Features | Intel Turbo Boost Technology 2.0 | Intel Smart Cache |
| MEMORY | ASUS ZenBook S UX391UA (ET087T) | ASUS ExpertBook B9 OLED (B9403CVA) |
|---|
| 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 ExpertBook B9 OLED (B9403CVA) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 SATA 6Gb/s | 1 TB SSD M.2 PCIe 4.0 - NVM Express (NVMe) |
|---|
| AUDIO & VIDEO | ASUS ZenBook S UX391UA (ET087T) | ASUS ExpertBook B9 OLED (B9403CVA) |
|---|
| 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 - 1080p |
| Camera Features | - | Privacy shutter, IR camera, Windows Hello |
| Sound | Harman/kardon stereo speakers, array microphone | Dual speakers, array microphone |
| Audio Features | ASUS SonicMaster | Output: Smart Amp; Input: AI noise cancelling |
| COMMUNICATIONS | ASUS ZenBook S UX391UA (ET087T) | ASUS ExpertBook B9 OLED (B9403CVA) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 4.2 | 802.11a/b/g/n/ac/ax (Wi-Fi 6E), Bluetooth 5.3 |
|---|---|---|
| Network Interface | - | Gigabit Ethernet |
| Features | - | Dual stream (2x2) |
| BATTERY | ASUS ZenBook S UX391UA (ET087T) | ASUS ExpertBook B9 OLED (B9403CVA) |
|---|
| 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 ExpertBook B9 OLED (B9403CVA) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
|---|---|---|
| Output | 65 Watt, 20 V | 65 Watt, 20 V, 3.25 A |
| INPUT | ASUS ZenBook S UX391UA (ET087T) | ASUS ExpertBook B9 OLED (B9403CVA) |
|---|
| Type | Keyboard, touchpad | Keyboard, NumberPad 2.0 |
|---|---|---|
| Keyboard Backlight | Yes | Yes |
| Features | - | Spill-resistant, chiclet keyboard, 1.5mm travel distance |
| CONNECTIONS & EXPANSIONS | ASUS ZenBook S UX391UA (ET087T) | ASUS ExpertBook B9 OLED (B9403CVA) |
|---|
| Slots | - | 2 x M.2 (PCI Express 4.0 x4 / SATA) (1 free) |
|---|---|---|
| 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) |
USB 3.2 Gen 2 2 x USB4 (supports Thunderbolt 4, DisplayPort Alt Mode) (Power Delivery) HDMI Micro-HDMI Headphone/microphone combo jack LAN (on supplied adapter) |
| SOFTWARE | ASUS ZenBook S UX391UA (ET087T) | ASUS ExpertBook B9 OLED (B9403CVA) |
|---|
| Operating System (OS) | Windows 10 Home | Windows 11 Pro |
|---|---|---|
| Software Included | - | McAfee, MyASUS, Microsoft 365 (1 month trial) |
| MISCELLANEOUS | ASUS ZenBook S UX391UA (ET087T) | ASUS ExpertBook B9 OLED (B9403CVA) |
|---|
| Included Accessories | USB-C power adapter | USB-C power adapter, Micro HDMI to LAN adapter |
|---|---|---|
| Security | Firmware Trusted Platform Module (TPM) Security Chip | Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader |
| Security Slot Type | - | Kensington nano security slot |
| Theft/Intrusion Protection | - | Security lock slot (cable lock sold separately) |
| Features | - | Smart Cooling Technology, MIL-STD-810H tested, BIOS protection |
| Compliant Standards | - | RoHS, REACH, Energy Star 8.0, FSC Mix |
| Model Number | - | KMi711X |
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