In depth comparison and review of ASUS VivoBook S15 (S531FA) and ASUS ZenBook S UX391UA (ET087T). 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 VivoBook S15 (S531FA) based on its technical characteristics, features, user experience, expert reviews and price level.
affordable price
large screen size
decent battery life
ample storage capacity
includes essential ports
mediocre display quality
heavy build
average processor
limited graphics performance
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
| DESIGN AND DIMENSIONS | ASUS VivoBook S15 (S531FA) | ASUS ZenBook S UX391UA (ET087T) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 35.72 cm x 23.03 cm x 1.8 cm | 31.1 cm x 21.3 cm x 1.29 cm |
| Weight | 1.8 kg | 1 kg |
| Colour | Gun metal | Deep dive blue |
| DISPLAY | ASUS VivoBook S15 (S531FA) | ASUS ZenBook S UX391UA (ET087T) |
|---|
| Screen Size (Type) | 15.6" | 13.3" |
|---|---|---|
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1080 (Full HD) |
| V-Sync Rate at Max Res. | 60 Hz | - |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:9 |
| Image Brightness | 300 cd/m² | 300 cd/m² |
| Colour Gamut | - | 72% NTSC |
| Features | Anti-glare, 178° horizontal and vertical viewing angle, NanoEdge display | Ultra Slim Design, anti-glare, WideView, 178° horizontal and vertical viewing angle |
| PROCESSOR | ASUS VivoBook S15 (S531FA) | ASUS ZenBook S UX391UA (ET087T) |
|---|
| CPU | Intel Core i5 (8th Gen) 8265U / 1.6 GHz | Intel Core i7 (8th Gen) 8550U / 1.8 GHz |
|---|---|---|
| Max Turbo Speed | 3.9 GHz | 4 GHz |
| Number of Cores | Quad-Core | Quad-Core |
| Cache | 6 MB | 8 MB |
| 64-bit Computing | Yes | Yes |
| Features | Intel Turbo Boost Technology 2.0 | Intel Turbo Boost Technology 2.0 |
| MEMORY | ASUS VivoBook S15 (S531FA) | ASUS ZenBook S UX391UA (ET087T) |
|---|
| RAM | 8 GB | 8 GB (provided memory is soldered) |
|---|---|---|
| RAM Type | DDR4 SDRAM | LPDDR3 SDRAM |
| Speed | 2400 MHz | 2133 MHz |
| Rated Speed | 2400 MHz | 2133 MHz |
| STORAGE | ASUS VivoBook S15 (S531FA) | ASUS ZenBook S UX391UA (ET087T) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 PCIe | 256 GB SSD M.2 SATA 6Gb/s |
|---|
| AUDIO & VIDEO | ASUS VivoBook S15 (S531FA) | ASUS ZenBook S UX391UA (ET087T) |
|---|
| Graphics Processor (GPU) | Intel UHD Graphics 620 | Intel UHD Graphics 620 |
|---|---|---|
| Camera | Yes - HD | Yes - HD |
| Camera Features | IR camera | - |
| Sound | Harman/kardon stereo speakers, array microphone | Harman/kardon stereo speakers, array microphone |
| Audio Features | ASUS SonicMaster, Smart Amplification technology | ASUS SonicMaster |
| COMMUNICATIONS | ASUS VivoBook S15 (S531FA) | ASUS ZenBook S UX391UA (ET087T) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 4.2 | 802.11a/b/g/n/ac, Bluetooth 4.2 |
|---|
| BATTERY | ASUS VivoBook S15 (S531FA) | ASUS ZenBook S UX391UA (ET087T) |
|---|
| Technology | 3-cell | 4-cell |
|---|---|---|
| Battery Capacity (Size) | 42 Wh | 50 Wh |
| Battery Life | - | Up to 13.5 hours |
| AC ADAPTER | ASUS VivoBook S15 (S531FA) | ASUS ZenBook S UX391UA (ET087T) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 45 Watt, 19 V, 2.47 A | 65 Watt, 20 V |
| INPUT | ASUS VivoBook S15 (S531FA) | ASUS ZenBook S UX391UA (ET087T) |
|---|
| Type | Keyboard, touchpad | Keyboard, touchpad |
|---|---|---|
| Keyboard Backlight | Yes | Yes |
| CONNECTIONS & EXPANSIONS | ASUS VivoBook S15 (S531FA) | ASUS ZenBook S UX391UA (ET087T) |
|---|
| Interfaces | HDMI 2 x USB 2.0 USB 3.1 Gen 1 Headphone/microphone combo jack USB-C 3.1 Gen 1 |
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) |
|---|---|---|
| Memory Card Reader | Yes (microSD) | - |
| SOFTWARE | ASUS VivoBook S15 (S531FA) | ASUS ZenBook S UX391UA (ET087T) |
|---|
| Operating System (OS) | Windows 10 Home | Windows 10 Home |
|---|
| MISCELLANEOUS | ASUS VivoBook S15 (S531FA) | ASUS ZenBook S UX391UA (ET087T) |
|---|
| Included Accessories | Power adapter | USB-C power adapter |
|---|---|---|
| Security | - | Firmware Trusted Platform Module (TPM) Security Chip |
| Features | ErgoLift | - |
| SAR Value | 0.584 W/kg (body), 0.584 W/kg (limb) | - |
| Model Number | EJ037T | - |
cs
sk
de
it
es
fr
hu
pt
ru
pl
br
ro
